IUE and Einstein survey of late-type giant and supergiant stars and the dividing line

Details IUE and Einstein survey of late-type giant and supergiant stars and the dividing line IUE and Einstein survey of late-type giant and supergiant stars and the dividing line

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...361..570h&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 361, Oct. 1, 1990, p. 570-589. Research supported by CNR, MPI, CRRNSM, and

Astronomy and Astrophysics

Astrophysics

22

Giant Stars, Iue, Late Stars, Stellar Evolution, Supergiant Stars, X Ray Stars, Hertzsprung-Russell Diagram, Ultraviolet Spectra

Scientific paper

Results are presented on an IUE UV survey of 255 late-type G, K, and M stars, complementing the Maggio et al. (1990) Einstein X-ray survey of 380 late-type stars. The large data sample of X-ray and UV detections make it possible to examine the activity relationship between the X-ray and the UV emissions. The results confirm previous finding of a trend involving a steeply-dropping upper envelope of the transition region line fluxes, f(line)/f(V), as the dividing line is approached. This suggests that a sharp decrease in maximum activity accompanies the advancing spectral type, with the dividing line corresponding to this steep gradient region. The results confirm the rotation-activity connection for stars in this region of the H-R diagram.

Affiliated with

Also associated with

No associations

Rating

IUE and Einstein survey of late-type giant and supergiant stars and the dividing line 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 IUE and Einstein survey of late-type giant and supergiant stars and the dividing line, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IUE and Einstein survey of late-type giant and supergiant stars and the dividing line will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1302089