Probing Coronal Flare Energetics: Coordinated EUVE, XTE, and IUE Observations of Nearby Flare Stars
Abstract
We request EUVE observations of EQ Peg and AU Mic as a central component of a coordinated campaign to monitor flaring on very active nearby dMe stars. Approved observations so far include 6 days of monitoring with XTE to probe the very hottest coronal plasma and to search for impulsive hard X-rays. Simultaneous rapid U-band photometry, IUE, and 3.6 cm radio observations are also planned. Time-resolved EUVE SW and MW spectra will trace the tempertaure distribution of the flaring coronal plasma in the temperature range 1-16 MK. We will compare the time scales for flare cooling (as seen with EUVE) and heating (as seen with XTE) and look for a stellar Neupert effect. To date the hard X-ray bursts which accompany microwave bursts in strong coronal flares have never been observed on a star other than the sun. The EUVE data will allow us to examine the overall energy budget in large stellar flares and to further test the validity of the solar analogy when extended to very active low-mass stars.
- Publication:
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EUVE Proposal
- Pub Date:
- 1995
- Bibcode:
- 1995euve.prop...25L
- Keywords:
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- EUVE Proposal ID #95-025