The measurement of rotational broadening in post-common-envelope binaries

James N. Bleach,Janet H. Wood,B. Smalley,M. S. Catalan

Monthly Notices of the Royal Astronomical Society（2002）

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摘要

We employ high-resolution echelle spectroscopy to measure the projected rotational velocity, Vrot sin i, in the post-common-envelope binaries EG UMa, HZ 9 and RE J1629 + 780. For EG UMa we obtain consistent Vrot sin i measurements from the Na i doublet at 8183, 8195Å (31.2 ± 3.7 km s−1), the Fe and Ti intrinsically narrow metal (INM) lines in the region 8374–8430Å (26.6 ± 2.7 and 27.8 ± 3.0 km s−1...

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关键词

binaries: close,stars: individual: EG UMa,stars: individual: HZ 9,stars: individual: RE J 1629 + 780,stars: rotation

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