X-ray emission at the low-mass end - Results from an extensive Einstein Observatory survey

Details X-ray emission at the low-mass end - Results from an extensive Einstein Observatory survey X-ray emission at the low-mass end - Results from an extensive Einstein Observatory survey

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...414..846b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 414, no. 2, p. 846-866.

Astronomy and Astrophysics

Astronomy

63

Emission Spectra, Late Stars, X Ray Sources, X Ray Stars, Heao 2, Proportional Counters, Sky Surveys (Astronomy), Solar Neighborhood, Stellar Luminosity, Stellar Rotation

Scientific paper

We have used available IPC data and a critical compilation of cataloged optical data to measure the 0.16-3.5 keV X-ray emission from 88 K and 169 M stars of luminosity classes IV, V, and VI within 25 pc from the Sun. The IPC detected 54 out of the 88 K stars, 70 out of the 138 M stars with M(v) less than 13.4, and 15 out of the 31 fainter M stars. We have identified a subsample of surveyed stars that is statistically representative of the population of K and M stars in the solar neighborhood. On the basis of this subsample (1) we have shown the occurrence of a drop in the level of X-ray emission for M stars later than approximately M5; (2) we have built unbiased maximum likelihood X-ray luminosity functions for the K, early M, and late M stars; (3) we have confirmed, both for K and M stars, the decrease of X-ray luminosity with increasing stellar age in the range of ages of disk population stars: and (4) we have shown that no obvious correlation is present between X-ray and bolometric luminosities in the entire representative samples of K and M stars, but only within flare stars which also seem to mark a saturation in X-ray luminosity level.

Affiliated with

Also associated with

No associations

Rating

X-ray emission at the low-mass end - Results from an extensive Einstein Observatory survey 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 X-ray emission at the low-mass end - Results from an extensive Einstein Observatory survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-ray emission at the low-mass end - Results from an extensive Einstein Observatory survey will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1560471