Broad-Band X-Ray Telescope spectroscopy of Zeta Puppis

Details Broad-Band X-Ray Telescope spectroscopy of Zeta Puppis Broad-Band X-Ray Telescope spectroscopy of Zeta Puppis

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...412..792c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 412, no. 2, p. 792-796.

Astronomy and Astrophysics

Astrophysics

24

Early Stars, Stellar Spectra, Stellar Winds, X Ray Telescopes, Broadband, Stellar Mass Ejection, X Ray Stars

Scientific paper

The Broad-Band X-Ray Telescope obtained moderate-resolution (about 90 eV) X-ray spectra of the O4 f star Xi Pup during the STS 35/Astro 1 mission in 1990 December. Despite the shortness of the observation (600 s), the data show a surprising amount of detail. We report the detection of an O absorption edge produced by ionized overlying wind material and K-shell line emission from Mg produced by a thermal plasma of temperature near 6 x 10 exp 6 K. The data are used to place constraints on the location, temperature, and amount of the X-ray-emitting gas, as well as the abundance and ionization of the wind material.

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