SIMBAD references

1998A&A...339L..45V - Astronomy and Astrophysics, volume 339, L45-48 (1998/11-2)

A second dust episode of the Wolf-Rayet system WR19: another long-period WC+O colliding-wind binary.

VEEN P.M., VAN DER HUCHT K.A., WILLIAMS P.M., CATCHPOLE R.M., DUIJSENS M.F.J., GLASS I.S. and SETIA GUNAWAN D.Y.A.

Abstract (from CDS):

We present observations of WR19 showing an infrared excess due to newly created dust similar to an event observed in 1988. We suggest that these episodes of dust-formation are periodic (P∼10yr) and related to the binary nature of the object, comparable to the colliding-wind binary WR140. In support of this thesis we identified absorption lines from a companion of spectral type O9.5-9.7. We propose monitoring the object to determine orbital parameters, non-thermal radio emission and the accurate shape of the infrared light-curve.

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Journal keyword(s): stars: Wolf-Rayet - stars: individual: WR 19, HD 96620 - binaries: general - infrared: stars

Simbad objects: 8

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