A model of the stellar content of soft X-ray surveys.

Details A model of the stellar content of soft X-ray surveys. A model of the stellar content of soft X-ray surveys.

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996rftu.proc...41g&link_type=abstract

International Conference on X-ray Astronomy and Astrophysics: Röntgenstrahlung from the Universe, p. 41 - 42

Astronomy and Astrophysics

Astrophysics

2

X-Ray Surveys: Stellar Content, X-Ray Surveys: Galaxy

Scientific paper

The authors present a numerical model designed to predict the stellar content of flux limited soft X-ray surveys. This X-ray count model is based on the Besançon stellar population model of the Galaxy and takes into account the most recent X-ray luminosity functions derived from ROSAT observations of young galactic clusters. The authors compare predicted and observed log(N)-log(S) curves in a low galactic latitude region of the ROSAT All-Sky Survey (RASS) and show that observational data are in good agreement with model predictions if one assumes a constant stellar formation rate and a power law index equal 0.7 for the initial mass function below 1 Msun. In order to understand the nature of the emitting population, they have also performed a survey of photospheric lithium abundances which confirms the youth of the X-ray active stars detected in the RASS.

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