Journal ArticleDOI
The Solar Optical Telescope for the Hinode Mission: An Overview
Saku Tsuneta,Kiyoshi Ichimoto,Yukio Katsukawa,Shin Nagata,Masashi Otsubo,Toshifumi Shimizu,Yoshinori Suematsu,Masao Nakagiri,M. Noguchi,T. D. Tarbell,A. M. Title,R. A. Shine,W. Rosenberg,C. Hoffmann,B. Jurcevich,Gary D. Kushner,M. Levay,Bruce W. Lites,D. F. Elmore,Tadashi Matsushita,Noboru Kawaguchi,H. Saito,Izumi Mikami,L. D. Hill,J. K. Owens +24 more
TLDR
The solar optical telescope (SOT) as discussed by the authors is a 50-cm diffraction-limited Gregorian telescope with the Stokes Spectro-Polarimeter (SP) attached to it.Abstract:
The Solar Optical Telescope (SOT) aboard the Hinode satellite (formerly called Solar-B) consists of the Optical Telescope Assembly (OTA) and the Focal Plane Package (FPP). The OTA is a 50-cm diffraction-limited Gregorian telescope, and the FPP includes the narrowband filtergraph (NFI) and the broadband filtergraph (BFI), plus the Stokes Spectro-Polarimeter (SP). The SOT provides unprecedented high-resolution photometric and vector magnetic images of the photosphere and chromosphere with a very stable point spread function and is equipped with an image-stabilization system with performance better than 0.01 arcsec rms. Together with the other two instruments on Hinode (the X-Ray Telescope (XRT) and the EUV Imaging Spectrometer (EIS)), the SOT is poised to address many fundamental questions about solar magnetohydrodynamics. This paper provides an overview; the details of the instrument are presented in a series of companion papers.read more
Citations
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Journal ArticleDOI
Alfvénic waves with sufficient energy to power the quiet solar corona and fast solar wind
TL;DR: Observations of the transition region of the chromosphere and the corona are reported that reveal how Alfvénic motions permeate the dynamic and finely structured outer solar atmosphere.
Journal ArticleDOI
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
The Origins of Hot Plasma in the Solar Corona
B. De Pontieu,Scott W. McIntosh,Mats Carlsson,Viggo Hansteen,T. D. Tarbell,Paul Boerner,Juan Martinez-Sykora,Carolus J. Schrijver,A. M. Title +8 more
TL;DR: Observations from the Solar Dynamics Observatory and the Hinode solar physics mission are used to reveal a ubiquitous coronal mass supply in which chromospheric plasma in fountainlike jets or spicules is accelerated upward into the corona, with much of the plasma heated to temperatures between ~0.02 and 0.1 million kelvin.
Journal ArticleDOI
A critical assessment of nonlinear force-free field modeling of the solar corona for active region 10953
Marc L. DeRosa,Carolus J. Schrijver,Graham Barnes,K. D. Leka,Bruce W. Lites,Markus J. Aschwanden,Tahar Amari,Tahar Amari,A. Canou,James M. McTiernan,Stephane Regnier,Julia K. Thalmann,Gherardo Valori,Michael S. Wheatland,Thomas Wiegelmann,Mark C. M. Cheung,Paul A. Conlon,M. Fuhrmann,Bernd Inhester,Tilaye Tadesse +19 more
TL;DR: In this paper, the authors discuss NLFFF modeling of NOAA Active Region 10953 using Hinode/SOT-SP, Hinode-XRT, STEREO/SECCHI-EUVI, and SOHO/MDI observations, and in the process illustrate three such issues.
Journal ArticleDOI
Physics of Solar Prominences: I-Spectral Diagnostics and Non-LTE Modelling
Nicolas Labrosse,P. Heinzel,Jean-Claude Vial,Therese A. Kucera,S. Parenti,Stanislav Gunár,Brigitte Schmieder,G. Kilper +7 more
TL;DR: In this paper, the spectral inversion technique has been used to infer the plasma parameters important for the general properties of the prominence plasma in both its cool core and the hotter prominence-corona transition region.
References
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Journal ArticleDOI
The Hinode(Solar-B)Mission: An Overview
Takeo Kosugi,K. Matsuzaki,Taro Sakao,Toshifumi Shimizu,Y. Sone,Sumitaka Tachikawa,Tatsuaki Hashimoto,Kenji Minesugi,Akira Ohnishi,T. Yamada,Saku Tsuneta,Hirohisa Hara,Kiyoshi Ichimoto,Yoshinori Suematsu,Masumi Shimojo,Takashi Watanabe,Shigenobu Shimada,John M. Davis,L. D. Hill,J. K. Owens,A. M. Title,J. L. Culhane,Louise K. Harra,George A. Doschek,Leon Golub +24 more
TL;DR: The Hinode satellite as discussed by the authors is the successor to the Yohkoh mission, which aims to understand how magnetic energy gets transferred from the photosphere to the upper atmosphere and results in explosive energy releases.
Journal ArticleDOI
Nanoflares and the solar X-ray corona
TL;DR: In this paper, it was shown that the X-ray corona is created by the dissipation at the many tangential discontinuities arising spontaneously in the bipolar fields of the active regions of the sun as a consequence of random continuous motion of the footpoints of the field in the photospheric convection.
Journal ArticleDOI
The transition region and coronal explorer
B. N. Handy,Loren W. Acton,Charles C. Kankelborg,C. J. Wolfson,D. J. Akin,Marilyn E. Bruner,R. Caravalho,R.C. Catura,Roger A. Chevalier,Dexter W. Duncan,Christopher G. Edwards,C.N. Feinstein,Samuel L. Freeland,Frank M. Friedlaender,C. Hoffmann,Neal E. Hurlburt,B. Jurcevich,N. Katz,G. A. Kelly,James R. Lemen,M. Levay,R.W. Lindgren,D. Mathur,S.B. Meyer,S.J. Morrison,M. Morrison,R. W. Nightingale,T.P. Pope,R. Rehse,Carolus J. Schrijver,Richard A. Shine,L. Shing,Keith T. Strong,Theodore D. Tarbell,Alan M. Title,D. D. Torgerson,Leon Golub,Jay A. Bookbinder,David Caldwell,Peter Cheimets,William N. Davis,Edward E. DeLuca,R. A. McMullen,Harry P. Warren,D. Amato,Richard R. Fisher,H. Maldonado,C. Parkinson +47 more
TL;DR: In this paper, a contract for the development and flight of an experiment to study the solar atmosphere with excellent spatial and temporal resolution; and reduction and analysis of the resultant data is presented.
Journal ArticleDOI
The EUV Imaging Spectrometer for Hinode
J. L. Culhane,Louise K. Harra,A. M. James,K. Al-Janabi,L. Bradley,Rifat A Chaudry,Kerrin Rees,J. Tandy,P. D. Thomas,M. C. R. Whillock,Berend Winter,George A. Doschek,Clarence M. Korendyke,Charles M. Brown,S. H. Myers,J. T. Mariska,John F. Seely,J. Lang,B. J. Kent,B. M. Shaughnessy,Peter R. Young,G. M. Simnett,C. M. Castelli,S. Mahmoud,H. Mapson-Menard,Brian J. Probyn,Roger J. Thomas,Joseph M. Davila,Kenneth P. Dere,David L. Windt,John Shea,R. Hagood,Robert W. Moye,Hirohisa Hara,Takashi Watanabe,K. Matsuzaki,Takeo Kosugi,Viggo Hansteen,Ø. Wikstol +38 more
TL;DR: The EUV Imaging Spectrometer (EIS) as mentioned in this paper is a two-element, normal incidence design with a backside-illuminated, thinned CCD, which has a significantly greater effective area than previous orbiting EUV spectrographs with typical active region 2 -5 s exposure times in the brightest lines.
Journal ArticleDOI
Mass and Energy Flow in the Solar Chromosphere and Corona
TL;DR: In this paper, the authors review some investigations into the mass and energy flow in the solar chromosphere and corona; the objective of these investigations is the development of a physical model that will not only account for the physical conditions in the outer atmosphere of the sun, but can also be applied to the study of the outer atmospheres of other stars.
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