Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...284..900m&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 284, no. 3, p. 900-906
Astronomy and Astrophysics
Astrophysics
27
Electron Density (Concentration), Extreme Ultraviolet Radiation, Flare Stars, Stellar Models, Stellar Spectra, Stellar Temperature, Ultraviolet Spectra, Exosat Satellite, Iron, Iue, Line Spectra, Stellar Coronas, Ultraviolet Spectrometers
Scientific paper
EXOSAT and IUE observations of the active star AU Mic are used to develop a model of the differential emission measure distribution (DEM) versus temperature. The signals detectable by the Extreme UltraViolet Explorer (EUVE) Spectrometers are predicted. The computation indicates the presence of several highly ionized iron lines in the EUV spectral region. These lines are identified in the observations of AU Mic performed by the Short (70-190 A) and Medium (140-380 A) Wavelength Spectrometers on EUVE. Using the recorded EUVE spectra a more accurate DEM model for the transition region and corona of the star has been evaluated and using density sensitive lines an upper limit on the electron density has been put.
Landini Massimo
Monsignori Fossi Brunella C.
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