@ARTICLE{anderson90, author = {{Anderson}, E.~R. and {Duvall}, Jr., T.~L. and {Jefferies}, S.~M. }, title = "{Modeling of solar oscillation power spectra}", journal = {\apj}, keywords = {Power Spectra, Solar Oscillations, Spectrum Analysis, Least Squares Method, Maximum Likelihood Estimates, Parameter Identification, Probability Density Functions}, year = 1990, month = dec, volume = 364, pages = {699-705}, doi = {10.1086/169452}, adsurl = {http://adsabs.harvard.edu/abs/1990ApJ...364..699A}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @INPROCEEDINGS{antia01, author = {{Antia}, H.~M. and {Basu}, S. and {Pintar}, J. and {Schou}, J. }, title = "{How correlated are f-mode frequencies with solar activity?}", keywords = {SUN: OSCILLATIONS, SOLAR ACTIVITY, SUN: INTERIOR}, booktitle = {SOHO 10/GONG 2000 Workshop: Helio- and Asteroseismology at the Dawn of the Millennium}, year = 2001, series = {ESA Special Publication}, volume = 464, editor = {{Wilson}, A. and {Pall{\'e}}, P.~L.}, month = jan, pages = {27-32}, adsurl = {http://adsabs.harvard.edu/abs/2001ESASP.464...27A}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @misc{ao, author = {Scherrer, Deborah}, title = {{Ancient Observatories - Timeless Knowledge}}, year = {2015}, howpublished = {\url{http://solar-center.stanford.edu/AO/Ancient-Observatories.pdf}}, note = {[accessed 11-June-2016]} } @ARTICLE{appourchaux, author = {{Appourchaux}, T. and {Belkacem}, K. and {Broomhall}, A.-M. and {Chaplin}, W.~J. and {Gough}, D.~O. and {Houdek}, G. and {Provost}, J. and {Baudin}, F. and {Boumier}, P. and {Elsworth}, Y. and {Garc{\'{\i}}a}, R.~A. and {Andersen}, B.~N. and {Finsterle}, W. and {Fr{\"o}hlich}, C. and {Gabriel}, A. and {Grec}, G. and {Jim{\'e}nez}, A. and {Kosovichev}, A. and {Sekii}, T. and {Toutain}, T. and {Turck-Chi{\`e}ze}, S.}, title = "{The quest for the solar g modes}", journal = {\aapr}, archivePrefix = "arXiv", eprint = {0910.0848}, primaryClass = "astro-ph.SR", keywords = {Sun, Theory, Data analysis, g modes}, year = 2010, month = feb, volume = 18, pages = {197-277}, doi = {10.1007/s00159-009-0027-z}, adsurl = {http://adsabs.harvard.edu/abs/2010A%26ARv..18..197A}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{atefeh2, author = {{Barekat}, A. and {Schou}, J. and {Gizon}, L.}, title = "{Solar-cycle variation of the rotational shear near the solar surface}", journal = {\aap}, keywords = {Sun: helioseismology, Sun: interior, Sun: rotation}, year = {2016, in press} } @ARTICLE{atefeh, author = {{Barekat}, A. and {Schou}, J. and {Gizon}, L.}, title = "{The radial gradient of the near-surface shear layer of the Sun}", journal = {\aap}, archivePrefix = "arXiv", eprint = {1410.3162}, primaryClass = "astro-ph.SR", keywords = {Sun: helioseismology, Sun: interior, Sun: rotation}, year = 2014, month = oct, volume = 570, eid = {L12}, pages = {L12}, doi = {10.1051/0004-6361/201424839}, adsurl = {http://adsabs.harvard.edu/abs/2014A%26A...570L..12B}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{babcock, author = {{Babcock}, H.~D.}, title = "{The Sun's Polar Magnetic Field.}", journal = {\apj}, year = 1959, month = sep, volume = 130, pages = {364}, doi = {10.1086/146726}, adsurl = {http://adsabs.harvard.edu/abs/1959ApJ...130..364B}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{baldner09, author = {{Baldner}, C.~S. and {Antia}, H.~M. and {Basu}, S. and {Larson}, T.~P.}, title = "{Solar Magnetic Field Signatures in Helioseismic Splitting Coefficients}", journal = {\apj}, archivePrefix = "arXiv", eprint = {0910.1597}, primaryClass = "astro-ph.SR", keywords = {Sun: activity, Sun: helioseismology, Sun: magnetic fields}, year = 2009, month = nov, volume = 705, pages = {1704-1713}, doi = {10.1088/0004-637X/705/2/1704}, adsurl = {http://adsabs.harvard.edu/abs/2009ApJ...705.1704B}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{beckgiles, author = {{Beck}, J.~G. and {Giles}, P.}, title = "{Helioseismic Determination of the Solar Rotation Axis}", journal = {\apjl}, keywords = {Sun: Helioseismology, Sun: Rotation}, year = 2005, month = mar, volume = 621, pages = {L153-L156}, doi = {10.1086/429224}, adsurl = {http://adsabs.harvard.edu/abs/2005ApJ...621L.153B}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{birmingham, author = {{Claverie}, A. and {Isaak}, G.~R. and {McLeod}, C.~P. and {van der Raay}, H.~B. and {Cortes}, T.~R.}, title = "{Solar structure from global studies of the 5-minute oscillation}", journal = {\nat}, keywords = {Astronomical Spectroscopy, Emission Spectra, Optical Resonance, Power Spectra, Solar Oscillations, Autocorrelation, Doppler Effect, Graphs (Charts), Solar Activity}, year = 1979, month = dec, volume = 282, pages = {591-594}, doi = {10.1038/282591a0}, adsurl = {http://adsabs.harvard.edu/abs/1979Natur.282..591C}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @INPROCEEDINGS{brown86, author = {{Brown}, T.~M.}, title = "{Measuring the sun's internal rotation using solar p-mode oscillations}", keywords = {Elastic Waves, Solar Activity Effects, Solar Interior, Solar Oscillations, Solar Rotation, Stellar Cores, Convective Flow, Modes (Standing Waves), Secular Variations, Stellar Models}, booktitle = {NATO Advanced Science Institutes (ASI) Series C}, year = 1986, series = {NATO Advanced Science Institutes (ASI) Series C}, volume = 169, editor = {{Gough}, D.~O.}, pages = {199-214}, adsurl = {http://adsabs.harvard.edu/abs/1986ASIC..169..199B}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{carrington1858, author = {{Carrington}, R.~C.}, title = "{On the Distribution of the Solar Spots in Latitudes since the Beginning of the Year 1854, with a Map}", journal = {\mnras}, year = 1858, month = nov, volume = 19, pages = {1-3}, doi = {10.1093/mnras/19.1.1}, adsurl = {http://adsabs.harvard.edu/abs/1858MNRAS..19....1C}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @book{carrington1863, title={{Observations of the Spots on the Sun: From November 9, 1853, to March 24, 1861, Made at Redhill}}, author={Carrington, R.C.}, series={University of Chicago Digital Preservation Collection}, url={\url{https://books.google.com/books?id=UCRWAAAAYAAJ}}, year={1863}, publisher={Williams and Norgate}, address={London, UK} } @ARTICLE{comparison1, author = {{Schou}, J. and {Howe}, R. and {Basu}, S. and {Christensen-Dalsgaard}, J. and {Corbard}, T. and {Hill}, F. and {Komm}, R. and {Larsen}, R.~M. and {Rabello-Soares}, M.~C. and {Thompson}, M.~J.}, title = "{A Comparison of Solar p-Mode Parameters from the Michelson Doppler Imager and the Global Oscillation Network Group: Splitting Coefficients and Rotation Inversions}", journal = {\apj}, keywords = {Methods: Data Analysis, Sun: Interior, Sun: Oscillations, Sun: Rotation}, year = 2002, month = mar, volume = 567, pages = {1234-1249}, doi = {10.1086/338665}, adsurl = {http://adsabs.harvard.edu/abs/2002ApJ...567.1234S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{cristinasylvain, author = {{Rabello-Soares}, M.~C. and {Korzennik}, S.~G. and {Schou}, J. }, title = "{Analysis of MDI High-Degree Mode Frequencies and their Rotational Splittings}", journal = {\solphys}, archivePrefix = "arXiv", eprint = {0808.2838}, keywords = {Helioseismology, observations, Instrumental effects, Oscillations, solar, Solar cycle}, year = 2008, month = sep, volume = 251, pages = {197-224}, doi = {10.1007/s11207-008-9231-7}, adsurl = {http://adsabs.harvard.edu/abs/2008SoPh..251..197R}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{deubnergough, author = {{Deubner}, F.-L. and {Gough}, D.}, title = "{Helioseismology: Oscillations as a Daignostic of the Solar Interior}", journal = {\araa}, year = 1984, volume = 22, pages = {593-619}, doi = {10.1146/annurev.aa.22.090184.003113}, adsurl = {http://adsabs.harvard.edu/abs/1984ARA%26A..22..593D}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{duvall82, author = {{Duvall}, Jr., T.~L.}, title = "{A dispersion law for solar oscillations}", journal = {\nat}, keywords = {Solar Oscillations, Solar Physics, Sound Waves, Cavity Resonators, Propagation Modes, Solar Atmosphere}, year = 1982, month = nov, volume = 300, pages = {242}, doi = {10.1038/300242a0}, adsurl = {http://adsabs.harvard.edu/abs/1982Natur.300..242D}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{duvall93, author = {{Duvall}, Jr., T.~L. and {Jefferies}, S.~M. and {Harvey}, J.~W. and {Osaki}, Y. and {Pomerantz}, M.~A.}, title = "{Asymmetries of solar oscillation line profiles}", journal = {\apj}, keywords = {Line Spectra, Power Spectra, Solar Oscillations, Solar Spectra, Spectrum Analysis, Symmetry, Fabry-Perot Interferometers, P Waves, Phase Shift}, year = 1993, month = jun, volume = 410, pages = {829-836}, doi = {10.1086/172800}, adsurl = {http://adsabs.harvard.edu/abs/1993ApJ...410..829D}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{eddy, author = {{Eddy}, J.~A.}, title = "{The Maunder Minimum}", journal = {Science}, year = 1976, month = jun, volume = 192, pages = {1189-1202}, doi = {10.1126/science.192.4245.1189}, adsurl = {http://adsabs.harvard.edu/abs/1976Sci...192.1189E}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @INPROCEEDINGS{edjohan, author = {{Rhodes}, E.~J. and {Reiter}, J. and {Schou}, J. and {Larson}, T. and {Scherrer}, P. and {Brooks}, J. and {McFaddin}, P. and {Miller}, B. and {Rodriguez}, J. and {Yoo}, J.}, title = "{Temporal changes in the frequencies of the solar p-mode oscillations during solar cycle 23}", keywords = {Sun: P-mode, sun: magnetic field, sun: solar activity}, booktitle = {Physics of Sun and Star Spots}, year = 2011, series = {IAU Symposium}, volume = 273, editor = {{Prasad Choudhary}, D. and {Strassmeier}, K.~G.}, month = aug, pages = {389-393}, doi = {10.1017/S1743921311015614}, adsurl = {http://adsabs.harvard.edu/abs/2011IAUS..273..389R}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{fahlmanulrych, author = {{Fahlman}, G.~G. and {Ulrych}, T.~J.}, title = "{A New Method for Estimating the Power Spectrum of Gapped Data}", journal = {\mnras}, year = 1982, month = apr, volume = 199, pages = {53}, adsurl = {http://adsabs.harvard.edu/abs/1982MNRAS.199...53F}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{fleck11, author = {{Fleck}, B. and {Couvidat}, S. and {Straus}, T.}, title = "{On the Formation Height of the SDO/HMI Fe 6173 {\AA} Doppler Signal}", journal = {\solphys}, archivePrefix = "arXiv", eprint = {1104.5166}, primaryClass = "astro-ph.SR", keywords = {Line formation, Oscillations, Photosphere, Sun}, year = 2011, month = jul, volume = 271, pages = {27-40}, doi = {10.1007/s11207-011-9783-9}, adsurl = {http://adsabs.harvard.edu/abs/2011SoPh..271...27F}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @misc{folklore, author = {Scherrer, Deborah}, title = {{Solar Folklore and Storytelling}}, year = {2015}, howpublished = {\url{http://solar-center.stanford.edu/folklore/Solar-Folklore.pdf}}, note = {[accessed 11-June-2016]} } @INPROCEEDINGS{ftach, author = {{Beckers}, J.~M. and {Brown}, T.~M.}, title = "{Solar circulation measurements: consideration and plans}", booktitle = {Future solar optical observations needs and constraints}, year = 1978, volume = 106, editor = {{Godoli}, G.}, pages = {189}, adsurl = {http://adsabs.harvard.edu/abs/1978fsoo.conf..189B}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @misc{galileo, author = {Van Helden, Albert}, title = {{The Galileo Project | Science | Sunspots}}, year = {1995}, howpublished = {\url{http://galileo.rice.edu/sci/observations/sunspots.html}}, note = {[accessed 11-June-2016]} } @INPROCEEDINGS{gongplus, author = {{Hill}, F. and {Bolding}, J. and {Toner}, C. and {Corbard}, T. and {Wampler}, S. and {Goodrich}, B. and {Goodrich}, J. and {Eliason}, P. and {Hanna}, K.~D.}, title = "{The GONG++ data processing pipeline}", keywords = {Helioseismology, Data Processing}, booktitle = {GONG+ 2002. Local and Global Helioseismology: the Present and Future}, year = 2003, series = {ESA Special Publication}, volume = 517, editor = {{Sawaya-Lacoste}, H.}, month = feb, pages = {295-298}, adsurl = {http://adsabs.harvard.edu/abs/2003ESASP.517..295H}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{gough2013, author = {{Gough}, D.}, title = "{What Have We Learned from Helioseismology, What Have We Really Learned, and What Do We Aspire to Learn?}", journal = {\solphys}, archivePrefix = "arXiv", eprint = {1210.0820}, primaryClass = "astro-ph.SR", keywords = {Helioseismology, heliophysics, Solar neutrinos, General relativity, Solar opacity, Equation of state}, year = 2013, month = oct, volume = 287, pages = {9-41}, doi = {10.1007/s11207-012-0099-1}, adsurl = {http://adsabs.harvard.edu/abs/2013SoPh..287....9G}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{hale08, author = {{Hale}, G.~E.}, title = "{On the Probable Existence of a Magnetic Field in Sun-Spots}", journal = {\apj}, year = 1908, month = nov, volume = 28, pages = {315}, doi = {10.1086/141602}, adsurl = {http://adsabs.harvard.edu/abs/1908ApJ....28..315H}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{hale19, author = {{Hale}, G.~E. and {Ellerman}, F. and {Nicholson}, S.~B. and {Joy}, A.~H.}, title = "{The Magnetic Polarity of Sun-Spots}", journal = {\apj}, year = 1919, month = apr, volume = 49, pages = {153}, doi = {10.1086/142452}, adsurl = {http://adsabs.harvard.edu/abs/1919ApJ....49..153H}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{hart, author = {{Hart}, A.~B.}, title = "{Motions in the Sun at the photospheric level. IV. The equatorial rotation and possible velocity fields in the photosphere}", journal = {\mnras}, year = 1954, volume = 114, pages = {17}, doi = {10.1093/mnras/114.1.17}, adsurl = {http://adsabs.harvard.edu/abs/1954MNRAS.114...17H}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{harvey96, author = {{Harvey}, J.~W. and {Hill}, F. and {Hubbard}, R.~P. and {Kennedy}, J.~R. and {Leibacher}, J.~W. and {Pintar}, J.~A. and {Gilman}, P.~A. and {Noyes}, R.~W. and {Title}, A.~M. and {Toomre}, J. and {Ulrich}, R.~K. and {Bhatnagar}, A. and {Kennewell}, J.~A. and {Marquette}, W. and {Patron}, J. and {Saa}, O. and {Yasukawa}, E.}, title = "{The Global Oscillation Network Group (GONG) Project}", journal = {Science}, year = 1996, month = may, volume = 272, pages = {1284-1286}, doi = {10.1126/science.272.5266.1284}, adsurl = {http://adsabs.harvard.edu/abs/1996Sci...272.1284H}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @article{hathaway, title = {The Solar Cycle}, author = {David H. Hathaway}, journal = {Living Reviews in Solar Physics}, year = {2010}, number = {1}, volume = {7}, keywords = {Sunspots, Solar cycle, Solar cycle prediction, Solar activity}, doi = {10.1007/lrsp-2010-1}, url = {http://www.livingreviews.org/lrsp-2010-1} } @ARTICLE{hmi, author = {{Schou}, J. and {Scherrer}, P.~H. and {Bush}, R.~I. and {Wachter}, R. and {Couvidat}, S. and {Rabello-Soares}, M.~C. and {Bogart}, R.~S. and {Hoeksema}, J.~T. and {Liu}, Y. and {Duvall}, T.~L. and {Akin}, D.~J. and {Allard}, B.~A. and {Miles}, J.~W. and {Rairden}, R. and {Shine}, R.~A. and {Tarbell}, T.~D. and {Title}, A.~M. and {Wolfson}, C.~J. and {Elmore}, D.~F. and {Norton}, A.~A. and {Tomczyk}, S.}, title = "{Design and Ground Calibration of the Helioseismic and Magnetic Imager (HMI) Instrument on the Solar Dynamics Observatory (SDO)}", journal = {\solphys}, keywords = {Solar Dynamics Observatory, Helioseismology, observations, Instrumentation and data management, Magnetic fields, photosphere}, year = 2012, month = jan, volume = 275, pages = {229-259}, doi = {10.1007/s11207-011-9842-2}, adsurl = {http://adsabs.harvard.edu/abs/2012SoPh..275..229S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{torsion, author = {{Howard}, R. and {Labonte}, B.~J.}, title = "{The sun is observed to be a torsional oscillator with a period of 11 years}", journal = {\apjl}, keywords = {Solar Cycles, Solar Oscillations, Solar Rotation, Flow Distribution, Periodic Variations, Plasma Oscillations, Stellar Mass, Stellar Structure, Torsion}, year = 1980, month = jul, volume = 239, pages = {L33-L36}, doi = {10.1086/183286}, adsurl = {http://adsabs.harvard.edu/abs/1980ApJ...239L..33H}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{howe2000, author = {{Howe}, R. and {Christensen-Dalsgaard}, J. and {Hill}, F. and {Komm}, R.~W. and {Larsen}, R.~M. and {Schou}, J. and {Thompson}, M.~J. and {Toomre}, J.}, title = "{Deeply Penetrating Banded Zonal Flows in the Solar Convection Zone}", journal = {\apjl}, eprint = {astro-ph/0003121}, keywords = {SUN: INTERIOR, SUN: OSCILLATIONS, SUN: ROTATION}, year = 2000, month = apr, volume = 533, pages = {L163-L166}, doi = {10.1086/312623}, adsurl = {http://adsabs.harvard.edu/abs/2000ApJ...533L.163H}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{howe2013, author = {{Howe}, R. and {Christensen-Dalsgaard}, J. and {Hill}, F. and {Komm}, R. and {Larson}, T.~P. and {Rempel}, M. and {Schou}, J. and {Thompson}, M.~J.}, title = "{The High-latitude Branch of the Solar Torsional Oscillation in the Rising Phase of Cycle 24}", journal = {\apjl}, keywords = {Sun: activity, Sun: helioseismology, Sun: rotation}, year = 2013, month = apr, volume = 767, eid = {L20}, pages = {L20}, doi = {10.1088/2041-8205/767/1/L20}, adsurl = {http://adsabs.harvard.edu/abs/2013ApJ...767L..20H}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @INPROCEEDINGS{jcd2004, author = {{Christensen-Dalsgaard}, J.}, title = "{An Overview of Helio- and Asteroseismology}", booktitle = {SOHO 14 Helio- and Asteroseismology: Towards a Golden Future}, year = 2004, series = {ESA Special Publication}, volume = 559, editor = {{Danesy}, D.}, month = oct, pages = {1}, adsurl = {http://adsabs.harvard.edu/abs/2004ESASP.559....1C}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{jcdreview, author = {{Christensen-Dalsgaard}, J.}, title = "{Helioseismology}", journal = {Reviews of Modern Physics}, eprint = {astro-ph/0207403}, keywords = {Helioseismology pulsations and shock waves, Solar interior, Electric and magnetic fields solar magnetism, Particle emission solar wind, Solar neutrinos}, year = 2002, month = nov, volume = 74, pages = {1073-1129}, doi = {10.1103/RevModPhys.74.1073}, adsurl = {http://adsabs.harvard.edu/abs/2002RvMP...74.1073C}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{johan, author = {{Reiter}, J. and {Rhodes}, Jr., E.~J. and {Kosovichev}, A.~G. and {Schou}, J. and {Scherrer}, P.~H. and {Larson}, T.~P.}, title = "{A Method for the Estimation of p-Mode Parameters from Averaged Solar Oscillation Power Spectra}", journal = {\apj}, archivePrefix = "arXiv", eprint = {1504.07493}, primaryClass = "astro-ph.SR", keywords = {methods: data analysis, methods: numerical, Sun: helioseismology, Sun: oscillations}, year = 2015, month = apr, volume = 803, eid = {92}, pages = {92}, doi = {10.1088/0004-637X/803/2/92}, adsurl = {http://adsabs.harvard.edu/abs/2015ApJ...803...92R}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{korzennik04, author = {{Korzennik}, S.~G. and {Rabello-Soares}, M.~C. and {Schou}, J. }, title = "{On the Determination of Michelson Doppler Imager High-Degree Mode Frequencies}", journal = {\apj}, eprint = {astro-ph/0207371}, keywords = {Sun: Activity, Sun: Helioseismology, Sun: Oscillations}, year = 2004, month = feb, volume = 602, pages = {481-516}, doi = {10.1086/381021}, adsurl = {http://adsabs.harvard.edu/abs/2004ApJ...602..481K}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{korzennik05, author = {{Korzennik}, S.~G.}, title = "{A Mode-Fitting Methodology Optimized for Very Long Helioseismic Time Series}", journal = {\apj}, keywords = {Methods: Statistical, Sun: Oscillations}, year = 2005, month = jun, volume = 626, pages = {585-615}, doi = {10.1086/429748}, adsurl = {http://adsabs.harvard.edu/abs/2005ApJ...626..585K}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{korzennik11, author = {{Korzennik}, S.~G. and {Eff-Darwich}, A.}, title = "{The rotation rate and its evolution derived from improved mode fitting and inversion methodology}", journal = {Journal of Physics Conference Series}, year = 2011, month = jan, volume = 271, number = 1, eid = {012067}, pages = {012067}, doi = {10.1088/1742-6596/271/1/012067}, adsurl = {http://adsabs.harvard.edu/abs/2011JPhCS.271a2067K}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{korzennik13, author = {{Korzennik}, S.~G. and {Eff-Darwich}, A.}, title = "{Mode Frequencies from 17, 15 and 2 Years of GONG, MDI, and HMI Data}", journal = {Journal of Physics Conference Series}, year = 2013, month = jun, volume = 440, number = 1, eid = {012015}, pages = {012015}, doi = {10.1088/1742-6596/440/1/012015}, adsurl = {http://adsabs.harvard.edu/abs/2013JPhCS.440a2015K}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{larson15, author = {{Larson}, T.~P. and {Schou}, J.}, title = "{Improved Helioseismic Analysis of Medium-$\ell$ Data from the Michelson Doppler Imager}", journal = {\solphys}, archivePrefix = "arXiv", eprint = {1511.05217}, primaryClass = "astro-ph.SR", keywords = {Helioseismology, observations, Oscillations, solar}, year = 2015, month = nov, volume = 290, pages = {3221-3256}, doi = {10.1007/s11207-015-0792-y}, adsurl = {http://adsabs.harvard.edu/abs/2015SoPh..290.3221L}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{leighton, author = {{Leighton}, R.~B. and {Noyes}, R.~W. and {Simon}, G.~W.}, title = "{Velocity Fields in the Solar Atmosphere. I. Preliminary Report.}", journal = {\apj}, year = 1962, month = mar, volume = 135, pages = {474}, doi = {10.1086/147285}, adsurl = {http://adsabs.harvard.edu/abs/1962ApJ...135..474L}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{libbrecht92, author = {{Libbrecht}, K.~G.}, title = "{On the ultimate accuracy of solar oscillation frequency measurements}", journal = {\apj}, keywords = {Background Noise, Frequency Measurement, Solar Oscillations, Accuracy, Helioseismology, Maximum Likelihood Estimates, Signal To Noise Ratios}, year = 1992, month = mar, volume = 387, pages = {712-714}, doi = {10.1086/171119}, adsurl = {http://adsabs.harvard.edu/abs/1992ApJ...387..712L}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @misc{lloyds, author = {{Lloyd's and Atmospheric and Environmental Research}}, title = {{Solar Storm Risk to the North American Electric Grid}}, year = {2013}, howpublished = {\url{http://www.lloyds.com/~/media/lloyds/reports/emerging%20risk%20reports/solar%20storm%20risk%20to%20the%20north%20american%20electric%20grid.pdf}}, note = {[accessed 13-June-2016]} } @ARTICLE{improvements, author = {{Larson}, T.~P. and {Schou}, J.}, title = "{Improvements in global mode analysis}", journal = {Journal of Physics Conference Series}, year = 2008, month = oct, volume = 118, number = 1, eid = {012083}, pages = {012083}, doi = {10.1088/1742-6596/118/1/012083}, adsurl = {http://adsabs.harvard.edu/abs/2008JPhCS.118a2083L}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @INPROCEEDINGS{variations, author = {{Larson}, T. and {Schou}, J.}, title = "{Variations in Global Mode Analysis}", booktitle = {Solar-Stellar Dynamos as Revealed by Helio- and Asteroseismology: GONG 2008/SOHO 21}, year = 2009, series = {Astronomical Society of the Pacific Conference Series}, volume = 416, editor = {{Dikpati}, M. and {Arentoft}, T. and {Gonz{\'a}lez Hern{\'a}ndez}, I. and {Lindsey}, C. and {Hill}, F.}, month = dec, pages = {311}, adsurl = {http://adsabs.harvard.edu/abs/2009ASPC..416..311L}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @INPROCEEDINGS{mof, author = {{Cacciani}, A. and {Rhodes}, Jr., E.~J.}, title = "{The magneto-optical filter, working principles and recent progress}", keywords = {Magnetic Signals, Optical Filters, Solar Activity, Solar Magnetic Field, Solar Oscillations, Solar Velocity, Fabry-Perot Spectrometers, Magnetic Measurement, Polarized Radiation, Signal To Noise Ratios, Transparence, Velocity Measurement, Wavelengths, Zeeman Effect}, booktitle = {Solar Seismology from Space}, year = 1984, editor = {{Ulrich}, R.~K. and {Harvey}, J. and {Rhodes}, Jr., E.~J. and {Toomre}, J.}, month = dec, adsurl = {http://adsabs.harvard.edu/abs/1984sses.nasa..115C}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @INPROCEEDINGS{mwo, author = {{Rhodes}, Jr., E.~J.}, title = "{The Observational Helioseismology Programs at the Sacramento Peak and Mount Wilson Observatories}", booktitle = {Fifty Years of Seismology of the Sun and Stars}, year = 2013, series = {Astronomical Society of the Pacific Conference Series}, volume = 478, editor = {{Jain}, K. and {Tripathy}, S.~C. and {Hill}, F. and {Leibacher}, J.~W. and {Pevtsov}, A.~A.}, month = dec, pages = {61}, adsurl = {http://adsabs.harvard.edu/abs/2013ASPC..478...61R}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{nigam98, author = {{Nigam}, R. and {Kosovichev}, A.~G.}, title = "{Measuring the Sun's Eigenfrequencies from Velocity and Intensity Helioseismic Spectra: Asymmetrical Line Profile-fitting Formula}", journal = {\apjl}, keywords = {SUN: OSCILLATIONS, SUN: INTERIOR, Sun: Interior, Sun: Oscillations}, year = 1998, month = sep, volume = 505, pages = {L51-L54}, doi = {10.1086/311594}, adsurl = {http://adsabs.harvard.edu/abs/1998ApJ...505L..51N}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @misc{phillips, author = {Phillips, Tony}, title = {{Near Miss: The Solar Superstorm of July 2012}}, year = {2014}, howpublished = {\url{http://science.nasa.gov/science-news/science-at-nasa/2014/23jul_superstorm/}}, note = {[accessed 13-June-2016]} } @INPROCEEDINGS{reduction, author = {{Schou}, J. and {Bogart}, R.~S.}, title = "{Reduction of Systematic Errors in MDI Measurements}", booktitle = {American Astronomical Society Meeting Abstracts \#200}, year = 2002, series = {Bulletin of the American Astronomical Society}, volume = 34, month = may, pages = {645}, adsurl = {http://adsabs.harvard.edu/abs/2002AAS...200.0411S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{rhodesreiter01, author = {{Rhodes}, Jr., E.~J. and {Reiter}, J. and {Schou}, J. and {Kosovichev}, A.~G. and {Scherrer}, P.~H.}, title = "{Observed and Predicted Ratios of the Horizontal and Vertical Components of the Solar p-Mode Velocity Eigenfunctions}", journal = {\apj}, keywords = {Sun: Helioseismology, Sun: Interior, Sun: Oscillations}, year = 2001, month = nov, volume = 561, pages = {1127-1143}, doi = {10.1086/323260}, adsurl = {http://adsabs.harvard.edu/abs/2001ApJ...561.1127R}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{schad13, author = {{Schad}, A. and {Timmer}, J. and {Roth}, M.}, title = "{Global Helioseismic Evidence for a Deeply Penetrating Solar Meridional Flow Consisting of Multiple Flow Cells}", journal = {\apjl}, archivePrefix = "arXiv", eprint = {1311.7623}, primaryClass = "astro-ph.SR", keywords = {methods: data analysis, Sun: helioseismology, Sun: interior, Sun: oscillations }, year = 2013, month = dec, volume = 778, eid = {L38}, pages = {L38}, doi = {10.1088/2041-8205/778/2/L38}, adsurl = {http://adsabs.harvard.edu/abs/2013ApJ...778L..38S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{scherrer95, author = {{Scherrer}, P.~H. and {Bogart}, R.~S. and {Bush}, R.~I. and {Hoeksema}, J.~T. and {Kosovichev}, A.~G. and {Schou}, J. and {Rosenberg}, W. and {Springer}, L. and {Tarbell}, T.~D. and {Title}, A. and {Wolfson}, C.~J. and {Zayer}, I. and {MDI Engineering Team} }, title = "{The Solar Oscillations Investigation - Michelson Doppler Imager}", journal = {\solphys}, year = 1995, month = dec, volume = 162, pages = {129-188}, doi = {10.1007/BF00733429}, adsurl = {http://adsabs.harvard.edu/abs/1995SoPh..162..129S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{schou94inv, author = {{Schou}, J. and {Christensen-Dalsgaard}, J. and {Thompson}, M.~J. }, title = "{On comparing helioseismic two-dimensional inversion methods}", journal = {\apj}, keywords = {Helioseismology, Inversions, Solar Interior, Solar Oscillations, Solar Rotation, Stellar Models, Two Dimensional Models, Least Squares Method, Mathematical Models}, year = 1994, month = sep, volume = 433, pages = {389-416}, doi = {10.1086/174653}, adsurl = {http://adsabs.harvard.edu/abs/1994ApJ...433..389S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{schou94leaks, author = {{Schou}, J. and {Brown}, T.~M.}, title = "{Generation of artificial helioseismic time-series.}", journal = {\aaps}, keywords = {METHODS: DATA ANALYSIS, SUN: OSCILLATIONS}, year = 1994, month = nov, volume = 107, pages = {541-550}, adsurl = {http://adsabs.harvard.edu/abs/1994A%26AS..107..541S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{schou99, author = {{Schou}, J.}, title = "{Migration of Zonal Flows Detected Using Michelson Doppler Imager F-Mode Frequency Splittings}", journal = {\apjl}, keywords = {SUN: ACTIVITY, SUN: INTERIOR, SUN: OSCILLATIONS, SUN: ROTATION, Sun: Activity, Sun: Interior, Sun: Oscillations, Sun: Rotation}, year = 1999, month = oct, volume = 523, pages = {L181-L184}, doi = {10.1086/312279}, adsurl = {http://adsabs.harvard.edu/abs/1999ApJ...523L.181S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @PHDTHESIS{schouthesis, author = {{Schou}, J.}, title = "{On the Analysis of Helioseismic Data}", school = {, Aarhus University, Aarhus, Denmark, (1992)}, year = 1992, adsurl = {http://adsabs.harvard.edu/abs/1992PhDT.......380S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @INPROCEEDINGS{schwabe, author = {{Schwabe}, H.}, title = "{Sonnen-Beobachtungen im Jahre 1843}", booktitle = {Some Aspects of the Earlier History of Solar-Terrestrial Physics}, year = 2004, editor = {{Schr{\"o}der}, W.}, pages = {124}, adsurl = {http://adsabs.harvard.edu/abs/2004aehs.conf..124S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @INPROCEEDINGS{southpole, author = {{Harvey}, J.~W.}, title = "{Three Decades of Helioseismology at Kitt Peak and South Pole}", booktitle = {Fifty Years of Seismology of the Sun and Stars}, year = 2013, series = {Astronomical Society of the Pacific Conference Series}, volume = 478, editor = {{Jain}, K. and {Tripathy}, S.~C. and {Hill}, F. and {Leibacher}, J.~W. and {Pevtsov}, A.~A.}, month = dec, pages = {51}, adsurl = {http://adsabs.harvard.edu/abs/2013ASPC..478...51H}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @INPROCEEDINGS{stein, author = {{Stein}, R.~F.}, title = "{Models of the 5-Minute Oscillation and their Excitation}", booktitle = {Fifty Years of Seismology of the Sun and Stars}, year = 2013, series = {Astronomical Society of the Pacific Conference Series}, volume = 478, editor = {{Jain}, K. and {Tripathy}, S.~C. and {Hill}, F. and {Leibacher}, J.~W. and {Pevtsov}, A.~A.}, month = dec, pages = {19}, adsurl = {http://adsabs.harvard.edu/abs/2013ASPC..478...19S}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{vorontsov07, author = {{Vorontsov}, S.~V.}, title = "{Solar p modes of high degree l: coupling by differential rotation}", journal = {\mnras}, keywords = {waves, Sun: helioseismology, Sun: oscillations, Sun: rotation}, year = 2007, month = jul, volume = 378, pages = {1499-1506}, doi = {10.1111/j.1365-2966.2007.11894.x}, adsurl = {http://adsabs.harvard.edu/abs/2007MNRAS.378.1499V}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{vorontsov13, author = {{Vorontsov}, S.~V. and {Jefferies}, S.~M.}, title = "{Modeling Solar Oscillation Power Spectra. II. Parametric Model of Spectral Lines Observed in Doppler-velocity Measurements}", journal = {\apj}, archivePrefix = "arXiv", eprint = {1310.7924}, primaryClass = "astro-ph.SR", keywords = {methods: data analysis, Sun: helioseismology, Sun: oscillations }, year = 2013, month = nov, volume = 778, eid = {75}, pages = {75}, doi = {10.1088/0004-637X/778/1/75}, adsurl = {http://adsabs.harvard.edu/abs/2013ApJ...778...75V}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @misc{carringtonevent, author = "Wikipedia", title = {{Solar storm of 1859 --- Wikipedia{,} The Free Encyclopedia}}, year = "2016", howpublished = {\url{https://en.wikipedia.org/w/index.php?title=Solar_storm_of_1859&oldid=724351827}}, note = {[Online; accessed 11-June-2016]} } @ARTICLE{woodard13, author = {{Woodard}, M. and {Schou}, J. and {Birch}, A.~C. and {Larson}, T.~P. }, title = "{Global-Oscillation Eigenfunction Measurements of Solar Meridional Flow}", journal = {\solphys}, keywords = {Solar interior, Mass flows, Helioseismology, Solar dynamo}, year = 2013, month = oct, volume = 287, pages = {129-147}, doi = {10.1007/s11207-012-0075-9}, adsurl = {http://adsabs.harvard.edu/abs/2013SoPh..287..129W}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{woodard89, author = {{Woodard}, M.~F.}, title = "{Distortion of high-degree solar p-mode eigenfunctions by latitudinal differential rotation}", journal = {\apj}, keywords = {Eigenvectors, Solar Oscillations, Solar Rotation, Axes Of Rotation, Formalism, Spherical Harmonics}, year = 1989, month = dec, volume = 347, pages = {1176-1182}, doi = {10.1086/168206}, adsurl = {http://adsabs.harvard.edu/abs/1989ApJ...347.1176W}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} } @ARTICLE{yaopbm, author = {{Korzennik}, S.~G.}, title = "{A Mode-Fitting Methodology Optimized for Very Long Helioseismic Time Series}", journal = {\apj}, keywords = {Methods: Statistical, Sun: Oscillations}, year = 2005, month = jun, volume = 626, pages = {585-615}, doi = {10.1086/429748}, adsurl = {http://adsabs.harvard.edu/abs/2005ApJ...626..585K}, adsnote = {Provided by the SAO/NASA Astrophysics Data System} }