SIMBAD references

2009MNRAS.395.2221W - Mon. Not. R. Astron. Soc., 395, 2221-2225 (2009/June-1)

Dust formation by the colliding wind WC5+O9 binary WR19 at periastron passage.

WILLIAMS P.M., RAUW G. and VAN DER HUCHT K.A.

Abstract (from CDS):

We present infrared photometry of the episodic dust-making Wolf-Rayet system WR19 (LS3), tracking its fading from a third observed dust formation episode in 2007 and strengthening the view that these episodes are periodic (P = 10.1±0.1y). Radial velocities (RVs) of the O9 component observed between 2001 and 2008 show RV variations consistent with WR19 being a spectroscopic binary of high eccentricity (e = 0.8), having periastron passage in 2007.14, shortly before the phase of dust formation. In this respect, WR19 resembles the archetypical episodic dust-making colliding wind binary system WR140.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): binaries: spectroscopic - circumstellar matter - stars: individual: WR19 - stars: Wolf-Rayet - infrared: stars

Simbad objects: 7

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2020.12.02-12:29:40

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