SphinX Measurements of the 2009 solar minimum X-ray emission
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F12%3A00386848" target="_blank" >RIV/67985815:_____/12:00386848 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0004-637X/751/2/111" target="_blank" >http://dx.doi.org/10.1088/0004-637X/751/2/111</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0004-637X/751/2/111" target="_blank" >10.1088/0004-637X/751/2/111</a>
Alternative languages
Result language
angličtina
Original language name
SphinX Measurements of the 2009 solar minimum X-ray emission
Original language description
The SphinX X-ray spectrophotometer on the CORONAS-PHOTON spacecraft measured soft X-ray emission in the 1-15 keV energy range during the deep solar minimum of 2009 with a sensitivity much greater than GOES. Several intervals are identified when the X-rayflux was exceptionally low, and the flux and solar X-ray luminosity are estimated. Spectral fits to the emission at these times give temperatures of 1.7-1.9 MK and emission measures between 4 x 10(47) cm(-3) and 1.1 x 10(48) cm(- 3). Comparing SphinX emission with that from the Hinode X-ray Telescope, we deduce that most of the emission is from general coronal structures rather than confined features like bright points. For one of 27 intervals of exceptionally low activity identified in the SphinX data, the Sun's X-ray luminosity in an energy range roughly extrapolated to that of ROSAT (0.1-2.4 keV) was less than most nearby K and M dwarfs.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astrophysical Journal
ISSN
0004-637X
e-ISSN
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Volume of the periodical
751
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
"111/1"-"111/5"
UT code for WoS article
000304204600032
EID of the result in the Scopus database
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