Chromospheric Activity in Mid- and Late-A Stars

Details Chromospheric Activity in Mid- and Late-A Stars Chromospheric Activity in Mid- and Late-A Stars

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop...57b&link_type=abstract

NOAO Proposal ID #1999B-0057

Statistics

Scientific paper

We propose to obtain high-precision measurements of the chromospheric helium D3 line in a sample of about 60 mid--late A stars. In previous studies, a few stars in this temperature range show moderately strong activity but most do not. However, no study has been undertaken with uniformly high precision measurements in a large number of stars, and such a study is most practical with ground-based observations. These measurements will record weak levels of activity previously undetected, and will thus provide excellent statistics on activity in these stars. With this data we hope to understand why there is a large range in activity levels in stars with similar temperatures, and determine whether this activity is powered by magnetism or acoustic waves.

Affiliated with

Also associated with

No associations

Rating

Chromospheric Activity in Mid- and Late-A Stars 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 Chromospheric Activity in Mid- and Late-A Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chromospheric Activity in Mid- and Late-A Stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1015738