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Title:
Broad-Band X-Ray Telescope spectroscopy of Zeta Puppis
Authors:
Corcoran, M. F.; Swank, J. H.; Serlemitsos, P. J.; Boldt, E.; Petre, R.; Marshall, F. E.; Jahoda, K.; Mushotzky, R.; Szymkowiak, A.; Arnaud, K.; Smale, A. P.; Weaver, K.; Holt, S. S.
Affiliation:
AA(NASA, Goddard Space Flight Center, Greenbelt, MD), AB(NASA, Goddard Space Flight Center, Greenbelt, MD), AC(NASA, Goddard Space Flight Center, Greenbelt, MD), AD(NASA, Goddard Space Flight Center, Greenbelt, MD), AE(NASA, Goddard Space Flight Center, Greenbelt, MD), AF(NASA, Goddard Space Flight Center, Greenbelt, MD), AG(NASA, Goddard Space Flight Center, Greenbelt, MD), AH(NASA, Goddard Space Flight Center, Greenbelt, MD), AI(NASA, Goddard Space Flight Center, Greenbelt, MD), AJ(NASA, Goddard Space Flight Center, Greenbelt, MD)
Publication:
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 412, no. 2, p. 792-796. (ApJ Homepage)
Publication Date:
08/1993
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Early Stars, Stellar Spectra, Stellar Winds, X Ray Telescopes, Broadband, Stellar Mass Ejection, X Ray Stars
DOI:
10.1086/172961
Bibliographic Code:
1993ApJ...412..792C

Abstract

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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