SIMBAD references

2007A&A...471L..25S - Astronomy and Astrophysics, volume 471, L25-27 (2007/8-4)

Transient jets in V617 Sagittarii.

STEINER J.E., OLIVEIRA A.S., TORRES C.A.O. and DAMINELI A.

Abstract (from CDS):

Some of the luminous Compact Binary Supersoft X-Ray sources (CBSS) have shown indications of jets, also called satellites due to their appearance in the spectra. In V Sagittae (V Sge) stars, the galactic counterparts of the CBSS, such features have been reported only for WX Cen. If V Sge stars are indeed the analogs of CBSS, one may expect transient jet emission in other objects of this class. Spectroscopic observations of the V Sge star V617 Sgr have been made, both at high photometric state and at decline. We show that V617 Sgr presents Hα satellites at high photometric state with velocities of ±780km/s. This feature confirms, once more, the CBSS nature of the V Sge stars, however the details of the spectral characteristics also suggest that the two groups of stars display some intrinsic spectroscopic differences, which are likely to be due to a selection effect related to chemical abundance.

Abstract Copyright:

Journal keyword(s): stars: binaries: close - stars: neutron - stars: individual: V617 Sgr - stars: emission-line, Be

Simbad objects: 10

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