Coordinated Space and Ground-Based Observations of the Flare Star YZ CMi
Abstract
We propose IUE ultraviolet observations of the flare star YZ CMi to complement high time resolution data to be acquired with the Goddard High Resolution Spectrograph on Hubble Space Telescope and other ground and space-based observatories including the AAT, ROSAT, and EUVE. The HST observations are designed to search for the signature of downflowing proton beams during flare events and to estimate their importance in providing the energy that powers the flare. These IUE observations, which include the full range of transition region and chromospheric lines, are critical to determining the energy balance and atmospheric structure of any flare observed. The extended dataset, including non-flare spectra, will allow us to characterize the overall activity level of the star at the time of the observations, and thus place the events in the proper context.
- Publication:
-
IUE Proposal
- Pub Date:
- 1994
- Bibcode:
- 1994iue..prop.4768C