The FK Comae stars

Details The FK Comae stars The FK Comae stars

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...247l.131b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 247, Aug. 1, 1981, p. L131-L134.

Astronomy and Astrophysics

Astrophysics

190

Binary Stars, Chromosphere, Giant Stars, K Stars, Stellar Evolution, Stellar Rotation, Stellar Spectra, Emission Spectra, G Stars, Iue, Line Spectra, Radial Velocity, Spectrum Analysis, Stellar Coronas, Ultraviolet Spectra

Scientific paper

The paper presents IUE observations of three very rapidly rotating G-K giants (v sin i = 100 km/s). The UV spectra show strong chromospheric and transition region emission lines similar to (and in excess of) the RS CVn binaries. These stars show no evidence for radial velocity variations in excess of plus or minus 3 to plus or minus 20 km/s, arguing against duplicity. As a class, they lend support to the rotation-activity hypothesis. Coalesced W UMa binaries, rather than single stars, are the possible progenitors for these FK Com variables.

Affiliated with

Also associated with

No associations

Rating

The FK Comae 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 The FK Comae stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The FK Comae stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1744541