Rapid UV Variability: the Contribution of Flare Heating in Active Dwarf Atmospheres

Details Rapid UV Variability: the Contribution of Flare Heating in Active Dwarf Atmospheres Rapid UV Variability: the Contribution of Flare Heating in Active Dwarf Atmospheres

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995hst..prop.5871s&link_type=abstract

HST Proposal ID #5871

Other

Hst Proposal Id #5871 Cool Stars

Scientific paper

The question of the contribution of flares and microflares to the non-radiatively heated outer atmospheres of late-type stars has been studied with at best very limited success for over a decade using IUE, a variety of X--ray satellites, and ground-based studies. However, HST presents the possibility for being able to place a firm lower limit on the fraction of the transition region flux that is the direct result of short timescale events. Our analysis of HST data on one M dwarf shows that up to 60 percent attributable to stellar flares and microflares. This leaves little room for the traditional ``quiescent" emission. Such a result, if confirmed for other stars, promises to revitalize the study of these atmospheres, with the recognition that the atmospheres are far more dynamic than static. We are now proposing to observe 3 new targets, including a very youthful solar analog and a fully convective star.

Affiliated with

Also associated with

No associations

Rating

Rapid UV Variability: the Contribution of Flare Heating in Active Dwarf Atmospheres does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Rapid UV Variability: the Contribution of Flare Heating in Active Dwarf Atmospheres, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid UV Variability: the Contribution of Flare Heating in Active Dwarf Atmospheres will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1171407