Výsledky vyhledávání - "John T. Mariska"

Comprehensive Determination of the Hinode/EIS Roll Angle

Autor: Gabriel Pelouze, Frédéric Auchère, Karine Bocchialini, Louise K. Harra, Deborah Baker, Harry P. Warren, David H. Brooks, John T. Mariska

We present a new coalignment method for the EUV Imaging Spectrometer (EIS) on board the Hinode spacecraft. In addition to the pointing offset and spacecraft jitter, this method determines the roll angle of the instrument, which has never been systema

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c7b555ad1868b6bdf4a4118b54d907e

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DOPPLER-SHIFT, INTENSITY, AND DENSITY OSCILLATIONS OBSERVED WITH THE EXTREME ULTRAVIOLET IMAGING SPECTROMETER ONHINODE

Autor: John T. Mariska, K. Muglach

Publikováno v: The Astrophysical Journal. 713:573-583

Low-amplitude Doppler-shift oscillations have been observed in coronal emission lines in a number of active regions with the EUV Imaging Spectrometer (EIS) on the Hinode satellite. Both standing and propagating waves have been detected and many perio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::759b78cc2ca2912b5ba462d71192cc9f
https://doi.org/10.1088/0004-637x/713/1/573

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COMBINED MODELING OF ACCELERATION, TRANSPORT, AND HYDRODYNAMIC RESPONSE IN SOLAR FLARES. I. THE NUMERICAL MODEL

Autor: Wei Liu, John T. Mariska, Vahé Petrosian

Publikováno v: The Astrophysical Journal. 702:1553-1566

Acceleration and transport of high-energy particles and fluid dynamics of atmospheric plasma are interrelated aspects of solar flares. We present here self-consistently combined Fokker-Planck modeling of particles and hydrodynamic simulation of flare

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eab062e1267cda0c5c9a310b344b4522
https://doi.org/10.1088/0004-637x/702/2/1553

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Hinode/EIS observations of propagating low-frequency slow magnetoacoustic waves in fan-like coronal loops

Autor: John T. Mariska, Leon Ofman, Joseph M. Davila, Tongjiang Wang

Publikováno v: Astronomy & Astrophysics. 503:L25-L28

We report the first observation of multiple-periodic propagating disturbances along a fan-like coronal structure simultaneously detected in both intensity and Doppler shift in the Fe XII 195 A line with the EUV Imaging Spectrometer (EIS) onboard Hino

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d89493267f2a7b10ab8508137722a07
https://doi.org/10.1051/0004-6361/200912534

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Non-Gaussian Line Profiles in a Large Solar Flare Observed on 2006 December 13

Autor: Takashi Minoshima, Hirohisa Hara, Louise K. Harra, Ayumi Asai, John T. Mariska, Shinsuke Imada, Tetsuya Watanabe

Publikováno v: The Astrophysical Journal. 679:L155-L159

We have studied the characteristics of the non-Gaussian line profile of the Fe XIV 274.20 A line in and around a flare arcade. We found that broad non-Gaussian line profiles associated with redshifts are observed in the flare arcade. There were two t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4156eabeb9521a4531e9abe847d8676c
https://doi.org/10.1086/589444

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2006 December 17 Long Duration Flare Observed with the Hinode EUV Imaging Spectrometer

Autor: George A. Doschek, Hirohisa Hara, Peter J. Cargill, K. Matsuzaki, Tetsuya Watanabe, Louise K. Harra, J. Leonard Culhane, John T. Mariska

Publikováno v: Publications of the Astronomical Society of Japan. 60:275-284

A GOES C-class long-duration flare that occurred near the west limb on 2006 December 17 was observed with the Hinode EUV Imaging Spectrometer (EIS) in raster-scan observations. Cusp-shaped arcades are prominent in the spectroheliogram of the Ca XVII

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3c239c4dd388f9aca60d3578c778c18
https://doi.org/10.1093/pasj/60.2.275

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Coronal Plasma Motions near Footpoints of Active Region Loops Revealed from Spectroscopic Observations with Hinode EIS

Autor: Louise K. Harra, Hirohisa Hara, George A. Doschek, J. Leonard Culhane, John T. Mariska, Tetsuya Watanabe, Peter R. Young

Publikováno v: The Astrophysical Journal. 678:L67-L71

The solar active region 10938 has been observed from the disk center to the west limb with the Hinode EUV Imaging Spectrometer. In the disk-center observation, subsonic upflow motions of tens of km s -->−1 and enhanced nonthermal velocities have be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5fb25bbad8d2f75aafef92c386d3ff7f
https://doi.org/10.1086/588252

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Temperature and Density Structures of Solar Corona—A Test of Iron Line Diagnostic Capability of EIS Instrument on Board Hinode

Autor: George A. Doschek, John T. Mariska, Peter R. Young, Hirohisa Hara, Tetsuya Watanabe, Louise K. Harra, Len Culhane

Publikováno v: Publications of the Astronomical Society of Japan. 59:S669-S674

Increased diagnostic capability of the EUV Imaging Spectrometer (EIS) aboard Hinode (former Solar-B) has been demonstrated with a set of iron emission lines emerging in the two EIS observing wavelength bands (170-210 A and 250-290 A) and their line-i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0323967125d18db561d1204c02e2ba1c
https://doi.org/10.1093/pasj/59.sp3.s669

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