Stellar birthrate in the Galaxy - Constraints from X-ray flux-limited surveys

Details Stellar birthrate in the Galaxy - Constraints from X-ray flux-limited surveys Stellar birthrate in the Galaxy - Constraints from X-ray flux-limited surveys

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...412..618m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 412, no. 2, p. 618-624.

Astronomy and Astrophysics

Astronomy

32

Milky Way Galaxy, Star Formation, Stellar Luminosity, X Ray Stars, Galactic Evolution, Spaceborne Astronomy, X Ray Sources

Scientific paper

The sensitivity of the stellar X-ray log (N) - log (S) to the relative density of young stars resulting from the assumed stellar birthrate is discussed. It is shown that given the sensitivity of X-ray model predicted log (N) - log (S) to the stellar birthrate, X-ray flux limited surveys can be used to impose relevant constraints on the history of the star-formation rate in the Galaxy. It is also shown that current X-ray surveys are compatible with high recent stellar birthrates, but incompatible with past stellar formation rates much higher than today's. The limitations of the present application due to available X-ray data are discussed.

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