Confirmation of six Be X-ray binaries in the Small Magellanic Cloud
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY(2017)
摘要
The X-ray binary population of the Small Magellanic Cloud (SMC) contains a large number of massive X-ray binaries and the recent survey of the SMC by XMM-Newton has resulted in almost 50 more tentative high mass X-ray binary candidates. Using probability parameters from Haberl Sturm (2016) together with the optical spectra and timing in this work, we confirm six new massive X-ray binaries in the SMC. We also report two very probable binary periods; of 36.4d in XMM 1859 and of 72.2 d in XMM 2300. These Be X-ray binaries are likely part of the general SMC population which rarely undergoes an X-ray outburst.
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关键词
stars: emission-line,Be-Magellanic Clouds,X-rays: binaries
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