J
Jesper Schou
Researcher at Max Planck Society
Publications - 72
Citations - 5394
Jesper Schou is an academic researcher from Max Planck Society. The author has contributed to research in topics: Helioseismology & Convection zone. The author has an hindex of 22, co-authored 72 publications receiving 4723 citations. Previous affiliations of Jesper Schou include Stanford University.
Papers
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Journal ArticleDOI
Design and Ground Calibration of the Helioseismic and Magnetic Imager (HMI) Instrument on the Solar Dynamics Observatory (SDO)
Jesper Schou,Philip H. Scherrer,R. I. Bush,R. Wachter,Sebastien Couvidat,M. C. Rabello-Soares,R. S. Bogart,J. T. Hoeksema,Yang Liu,Thomas L. Duvall,D. J. Akin,B. Allard,J. W. Miles,R. Rairden,R. A. Shine,T. D. Tarbell,A. M. Title,C. J. Wolfson,D. F. Elmore,Aimee A. Norton,Aimee A. Norton,Steven Tomczyk +21 more
TL;DR: The Helioseismic and Magnetic Imager (HMI) as discussed by the authors was designed to measure the Doppler shift, intensity, and vector magnetic field at the solar photosphere using the 6173 A FeI absorption line.
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The Helioseismic and Magnetic Imager (HMI) Vector Magnetic Field Pipeline: Overview and Performance
J. Todd Hoeksema,Yang Liu,Keiji Hayashi,Xudong Sun,Jesper Schou,Jesper Schou,Sebastien Couvidat,Aimee A. Norton,Monica G. Bobra,Rebecca Centeno,K. D. Leka,Graham Barnes,Michael Turmon +12 more
TL;DR: In this article, the Helioseismic and Magnetic Imager (HMI) active region patches (HARPs) are used to track the location and shape of magnetic regions throughout their lifetime.
Journal ArticleDOI
Seismic evidence for a rapidly rotating core in a lower-giant-branch star observed with kepler
S. Deheuvels,Rafael A. García,William J. Chaplin,Sarbani Basu,H. M. Antia,Thierry Appourchaux,Othman Benomar,Guy R. Davies,Yvonne Elsworth,Laurent Gizon,M. J. Goupil,Daniel R. Reese,C. Régulo,Jesper Schou,T. Stahn,Luca Casagrande,Jørgen Christensen-Dalsgaard,Debra A. Fischer,Saskia Hekker,Hans Kjeldsen,Savita Mathur,Benoit Mosser,Marc H. Pinsonneault,Jeff A. Valenti,Jessie L. Christiansen,Karen Kinemuchi,Fergal Mullally +26 more
TL;DR: In this paper, the authors detect mixed modes (i.e., modes that behave both as g modes in the core and as p modes in an envelope) in the spectrum of the early red giant KIC 7341231, which was observed during one year with the Kepler spacecraft.
Journal ArticleDOI
Seismic constraints on the radial dependence of the internal rotation profiles of six Kepler subgiants and young red giants
S. Deheuvels,S. Deheuvels,G. Doğan,G. Doğan,M. J. Goupil,Thierry Appourchaux,Othman Benomar,Hans Bruntt,Tiago L. Campante,Tiago L. Campante,Luca Casagrande,T. Ceillier,Guy R. Davies,Guy R. Davies,Guy R. Davies,P. De Cat,Jian-Ning Fu,Rafael A. García,Alex Lobel,Benoit Mosser,Daniel R. Reese,C. Régulo,C. Régulo,Jesper Schou,T. Stahn,A. O. Thygesen,Xiao-Hu Yang,William J. Chaplin,William J. Chaplin,Jørgen Christensen-Dalsgaard,Patrick Eggenberger,Laurent Gizon,S. Mathis,J. Molenda-Żakowicz,Marc H. Pinsonneault +34 more
TL;DR: In this article, the rotational splittings and frequencies of the modes for six young Kepler red giants were extracted and a seismic modeling of these stars using the evolutionary codes Cesam2k and astec was performed.
Journal ArticleDOI
VFISV: Very Fast Inversion of the Stokes Vector for the Helioseismic and Magnetic Imager
J. M. Borrero,Steven Tomczyk,M. Kubo,Hector Socas-Navarro,Jesper Schou,Sebastien Couvidat,R. S. Bogart +6 more
TL;DR: In this paper, the authors describe the implementation and main properties of a new inversion code for the polarized radiative transfer equation (VFISV: Very Fast Inversion of the Stokes Vector).