A coordinated X-ray and optical campaign of the nearest massive eclipsing binary, δ Orionis Aa. IV. A multiwavelength, non-LTE spectroscopic analysis

Journal Article · Thu Aug 20 00:00:00 EDT 2015 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/809/2/135· OSTI ID:22879428

Shenar, T.; Oskinova, L.; Hamann, W. -R.; Todt, H. ^[1]; Corcoran, M. F. ^[2]; Moffat, A. F. J.; Pablo, H.; Richardson, N. D. ^[3]; Waldron, W. L. ^[4]; Huenemoerder, D. P. ^[5]; Maíz Apellániz, J. ^[6]; Nichols, J. S. ^[7]; Nazé, Y. ^[8]; Hoffman, J. L. ^[9]; others, and

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1. Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str. 24/25, D-14476 Potsdam (Germany)
2. CRESST and X-ray Astrophysics Laboratory, NASA/Goddard Space Flight Center, Greenbelt, MD 20771 (United States)
3. Département de physique and Centre de Recherche en Astrophysique du Québec (CRAQ), Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Québec, H3C 3J7 (Canada)
4. Eureka Scientific, Inc., 2452 Delmer Street, Oakland, CA 94602 (United States)
5. Kalvi Institute for Astrophysics and Space Research, MIT, Cambridge, MA (United States)
6. Centro de Astrobiología, INTA-CSIC, Campus ESAC, P.O. Box 78, E-28 691 Villanueva de la Cañada, Madrid (Spain)
7. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, MS 34, Cambridge, MA 02138 (United States)
8. Groupe d’Astrophysique des Hautes Energies, Institut d’Astrophysique et de Géophysique, Université de Liége, 17, Allée du 6 Août, B5c, B-4000 Sart Tilman (Belgium)
9. Department of Physics and Astronomy, University of Denver, 2112 E. Wesley Avenue, Denver, CO 80208 (United States)

Eclipsing systems of massive stars allow one to explore the properties of their components in great detail. We perform a multi-wavelength, non-LTE analysis of the three components of the massive multiple system δ Ori A, focusing on the fundamental stellar properties, stellar winds, and X-ray characteristics of the system.

• OSTI ID: 22879428
• Journal Information: Astrophysical Journal, Vol. 809, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United Kingdom
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ABSORPTION SPECTROSCOPY
ECLIPSE
FOCUSING
STARS
STELLAR WINDS
WAVELENGTHS
X RADIATION