SIMBAD references

2011MNRAS.413.2760V - Mon. Not. R. Astron. Soc., 413, 2760-2766 (2011/June-1)

On the nature of the Be star HR 7409 (7 vul).

VENNES S., KAWKA A., JONIC S., PIRKOVIC I., ILIEV L., KUBAT J., SLECHTA M., NEMETH P. and KRAUS M.

Abstract (from CDS):

HR 7409 (7 Vul) is a newly identified Be star, possibly part of the Gould Belt, and is the massive component of a 69-d spectroscopic binary. The binary parameters and properties of the Be star measured using high-dispersion spectra obtained at Ond{rcaron}ejov Observatory and at Rozhen Observatory imply the presence of a low-mass companion (≈0.5–0.8 M). If the pair is relatively young (<50–80 Myr), then the companion is a K V star, but, following another, older evolutionary scenario, the companion is a horizontal branch star or possibly a white dwarf star. In the latter scenario, a past episode of mass transfer from an evolved star on to a less massive dwarf star would be responsible for the peculiar nature of the present-day, fast-rotating Be star.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): stars: emission-line, Be - stars: individual: HR 7409

Simbad objects: 14

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2020.09.25-03:52:52

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