Extreme Ultraviolet Emission from Flare Stars Observed with EUVE

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Session 41 -- EUVE -- Astronomy
Display presentation, Tuesday, 6:00-8:00, CEA Room

[41.05] Extreme Ultraviolet Emission from Flare Stars Observed with EUVE

P.W. Vedder, R.J. Patterer, J. Drake (CEA/UCB), S. Cully (SSL/UCB), A. Brown (CEA/UCB \& JILA/Univ. of Colorado), B. Pettersen (Norwegian Mapping Authority)

The Extreme Ultraviolet Explorer (EUVE) satellite recently completed an all-sky survey in the extreme ultraviolet (EUV) from 70 -- 700 \AA\@. Data were collected on numerous late-type and flare stars both during the survey and during pointed calibration observations. We present results from the EUVE observations of dKe and dMe flare stars. Quiescent fluxes are given for those sources which were detected, and comparisons made to previous EUV and X-ray measurements of the coronal emission from these objects. EUV flares have also been observed from several stars, including AU Mic, AT Mic, Prox Cen and YZ CMi. Light curves for these objects are presented, along with flare frequencies, peak luminosities and total flare energies. Comparisons are made to flare frequencies and energies derived from optical and X-ray measurements. In a few cases, temperatures are derived from multi-band measurements or from simultaneous spectra taken during the flares.

This work has been supported by NASA contracts NAS5-30180 and NAS5-29298.

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