SIMBAD references

2003A&A...402..587S - Astronomy and Astrophysics, volume 402, 587-605 (2003/5-1)

Radial velocities of early-type stars in the Perseus OB2 association.

STEENBRUGGE K.C., DE BRUIJNE J.H.J., HOOGERWERF R. and DE ZEEUW P.T.

Abstract (from CDS):

We present radial velocities for 29 B- and A-type stars in the field of the nearby association Perseus OB2. The velocities are derived from spectra obtained with AURELIE, via cross correlation with radial velocity standards matched as closely as possible in spectral type. The resulting accuracy is ∼2-3km/s. We use these measurements, together with published values for a few other early-type stars, to study membership of the association. The mean radial velocity (and measured velocity dispersion) of Per OB2 is 23.5 ±3.9km/s, and lies ∼15km/s away from the mean velocity of the local disk field stars. We identify a number of interlopers in the list of possible late-B- and A-type members which was based on Hipparcos parallaxes and proper motions, and discuss the colour-magnitude diagram of the association.

Abstract Copyright:

Journal keyword(s): stars: early-type - stars: binaries: spectroscopic - stars: kinematics - stars: rotation - techniques: radial velocities - open clusters and associations: individual: Perseus OB2

Simbad objects: 52

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2003A&A...402..587S and select 'bookmark this link' or equivalent in the popup menu


2020.01.21-12:31:19

© Université de Strasbourg/CNRS

    • Contact