Extragalactic Wolf-Rayet/black-hole X-ray binary candidates NGC 300 X-1 and IC 10 X-1
Carpano S, Pollock AMT, Prestwich A, Kilgard R, Crowther P, Wilms J, Yungelson L, Ehle M (2008)
Publication Status: Published
Publication Type: Conference contribution
Publication year: 2008
Journal
Book Volume: 1010
Pages Range: 330-+
Abstract
NGC 300 X-1 and IC 10 X-1 have recently been identified in nearby galaxies as extragalactic examples of the rare class of Wolf-Rayet/compact object X-ray binary system uniquely exemplified in the Galaxy by Cyg X-3. Using Swift TOO observations of NGC 300 X-1 and IC 10 X-1, we recently discovered very similar periods of 32.8 +/- 0.4 and 34.8 +/- 0.9 hours, respectively. We believe that these are likely to be orbital periods. It seems surprising that these are so similar and large compared to the short 4.8 hour period of Cyg X-3, suggesting different evolutionary paths. For both extragalactic candidates we show the allowed ranges of component masses and Wolf-Rayet star wind velocities for which accretion disks could form around the black holes.
Authors with CRIS profile
Involved external institutions
Harvard University
United States (USA) (US)
European Space Agency (ESA)
France (FR)
Russian Academy of Sciences / Росси́йская акаде́мия нау́к (RAS)
Russian Federation (RU)
University of Sheffield
United Kingdom (GB)
United States (USA) (US)
European Space Agency (ESA)
France (FR)
Russian Academy of Sciences / Росси́йская акаде́мия нау́к (RAS)
Russian Federation (RU)
University of Sheffield
United Kingdom (GB)
How to cite
APA:
Carpano, S., Pollock, A.M.T., Prestwich, A., Kilgard, R., Crowther, P., Wilms, J.,... Ehle, M. (2008). Extragalactic Wolf-Rayet/black-hole X-ray binary candidates NGC 300 X-1 and IC 10 X-1. (pp. 330-+).
MLA:
Carpano, S., et al. "Extragalactic Wolf-Rayet/black-hole X-ray binary candidates NGC 300 X-1 and IC 10 X-1." 2008. 330-+.
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