A search for proton beams during flares on AU Microscopii

Details A search for proton beams during flares on AU Microscopii A search for proton beams during flares on AU Microscopii

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...414..872r&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 414, no. 2, p. 872-876.

Astronomy and Astrophysics

Astronomy

8

Dwarf Stars, Proton Beams, Stellar Activity, Stellar Flares, Stellar Models, Energy Budgets, Lyman Alpha Radiation, Spaceborne Astronomy, Stellar Magnetic Fields, Ultraviolet Radiation

Scientific paper

We report the results of a coordinated observing campaign on the active M dwarf star AU Mic. The purpose of the campaign was to search for evidence of proton beams during the impulsive phase of stellar flares and to determine whether the energy contained in these beams represented a significant fraction of the energy budget of the flare. During a total of 3.5 hr of monitoring a small flare was observed simultaneously by the HST, IUE, and the AAT. This event, which had a total optical + UV emission of 1.3 x 10 exp 32 ergs, occurred during the decay phase of a much larger event and showed no evidence for a proton beam with an energy greater than a few times 10 exp 29 ergs/s. This is comparable to the maximum energy flux released by the flare, though this energy release rate must occur over a time interval much shorter than that of the impulsive phase itself. We conclude that the proton beams may be capable of transporting some energy during the impulsive phase of a flare, but that they are unlikely to be the major contributor, at least for this particular event.

Affiliated with

Also associated with

No associations

Rating

A search for proton beams during flares on AU Microscopii 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 A search for proton beams during flares on AU Microscopii, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A search for proton beams during flares on AU Microscopii will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1560487