Keywords
Stars: binaries
spectroscopic
Stars: early-type
Stars: individual (Wack 2134
WR 21a)
spectroscopic
Stars: early-type
Stars: individual (Wack 2134
WR 21a)
How to Cite
Wack2134 (= WR21a): A New Wolf-Rayet Binary. (2006). Revista Mexicana De Astrofísica Y Astronomía Serie De Conferencias, 26, 39-40. https://doi.org/10.22201/ia.14052059p.2006.26.14
Abstract
We present a radial velocity study of the star Wack134, which shows Wolf-Rayet type emission lines in its optical spectrum. This star, catalogued as WR1a, is a well kown X-ray source. Our spectra show radial velocity variations of large amplitude, from which we have determined an orbital period of 31.6 days. In this period, the radial velocities of WR1a describe a rather eccentric orbit. The value of the mass function determined from our orbital solution is high, over 8 solar masses, indicating that WR1a is a system of two massive stars. The X-ray source therefore could arise in the collision of the stellar winds of the binary components.Similar Articles
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