SIMBAD references

1998A&A...331..949M - Astronomy and Astrophysics, volume 331, 949-958 (1998/3-3)

Wolf-Rayet stars and O-star runaways with HIPPARCOS. I. Kinematics.

MOFFAT A.F.J., MARCHENKO S.V., SEGGEWISS W., VAN DER HUCHT K.A., SCHRIJVER H., STENHOLM B., LUNDSTROEM I., SETIA GUNAWAN D.Y.A., SUTANTYO W., VAN DEN HEUVEL E.P.J., DE CUYPER J.-P. and GOMEZ A.E.

Abstract (from CDS):

Reliable systemic radial velocities are almost impossible to secure for Wolf-Rayet stars, difficult for O stars. Therefore, to study the motions - both systematic in the Galaxy and peculiar - of these two related types of hot, luminous star, we have examined the Hipparcos proper motions of some 70 stars of each type. We find that (a) both groups follow Galactic rotation in the same way, (b) both have a similar fraction of ``runaways'', (c) mean kinetic ages based on displacement and motion away from the Galactic plane tend to slightly favour the cluster ejection over the the binary supernova hypothesis for their formation, and (d) those with significant peculiar supersonic motion relative to the ambient ISM, tend to form bow shocks in the direction of the motion.

Abstract Copyright: ∼

Journal keyword(s): astrometry - stars: kinematics - stars: early-type - stars: Wolf-Rayet - Galaxy: kinematics and dynamics

VizieR on-line data: <Available at CDS (J/A+A/331/949): table1 table1.tex>

Errata: Erratum vol. 345, p. 321 (1999)

CDS comments: Table 1 : V428 Cas misprint for V482 Cas (= HD 16429).

Simbad objects: 141

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