Stellar Rotation in Field and Cluster B-Stars

Abstract

We present the results of a spectroscopic investigation of 108 nearby field B-stars. We derive their key stellar parameters, $V\sin i$, $T_{\mathrm{eff}}$, $\log g$, and $\log g_{\mathrm{polar}}$, using the same methods that we used in our previous cluster B-star survey. By comparing the results of the field and the cluster samples, we find that the main reason for the overall slower rotation of the field sample is that it contains a larger fraction of older stars than found in the (mainly young) cluster sample.

20 pages, 5 figures, accepted for publication in ApJ

References in corpus (10)

• The Indo-U.S. Library of Coude Feed Stellar Spectra
• Be-star rotation: how close to critical?
• The ELODIE archive
• First Results from the CHARA Array. I. An Interferometric and Spectroscopic Study of the Fast Rotator alpha Leonis (Regulus)
• Stellar Rotation in Young Clusters. I. Evolution of Projected Rotational Velocity Distributions
• Rotational Velocities For B0-B3 Stars in 7 Young Clusters: Further Study of the Relationship between Rotation Speed and Density in Star-Forming Regions
• B Star Rotational Velocities in h and chi Persei: A Probe of Initial Conditions During the Star-Formation Process
• Stellar Rotation in Young Clusters. II. Evolution of Stellar Rotation and Surface Helium Abundance
• B-type supergiants in the SMC: Rotational velocities and implications for evolutionary models
• Determining the Physical Properties of the B Stars II. Calibration of Synthetic Photometry

Cited by in corpus (28)

• The Effects of Stellar Rotation. II. A Comprehensive Set of Starburst99 Models
• The IACOB project: I. Rotational velocities in Northern Galactic O and early B-type stars revisited. The impact of other sources of line-broadening
• A Stellar Rotation Census of B Stars: from ZAMS to TAMS
• A CHARA Array Survey of Circumstellar Disks around Nearby Be-type Stars
• The Effect of Stellar Rotation on Colour-Magnitude Diagrams: On the apparent presence of multiple populations in intermediate age stellar clusters
• Rotation Speed of the First Stars
• A high fraction of Be stars in young massive clusters: evidence for a large population of near-critically rotating stars
• Rotation and Internal Structure of Population III Protostars
• The Kappa Andromedae System: New Constraints on the Companion Mass, System Age & Further Multiplicity
• Projected Rotational Velocities and Stellar Characterization of 350 B Stars in the Nearby Galactic Disk
• Impacts of Rotation on Three-dimensional Hydrodynamics of Core-collapse Supernovae
• What Sets the Initial Rotation Rates of Massive Stars?
• Variability of Be Stars in Southern Open Clusters
• A Sample of OB Stars That Formed in the Field
• On the Origin of the Bimodal Rotational Velocity Distribution in Stellar Clusters: Rotation on the Pre-Main Sequence
• Deep infrared imaging of close companions to austral A- and F-type stars
• Multi-epoch Near-Infrared Interferometry of the Spatially Resolved Disk Around the Be Star Zeta Tau
• The Be Star HD 215227: A Candidate Gamma-ray Binary
• The Discovery of a Strong Magnetic Field and Co-rotating Magnetosphere in the Helium-weak Star HD 176582
• Chemical abundances of fast-rotating massive stars. I. Description of the methods and individual results
• The young massive SMC cluster NGC 330 seen by MUSE III. Stellar parameters and rotational velocities
• pi Aqr is another gamma-Cas object
• Classical Oe Stars in the Field of the Small Magellanic Cloud
• The hybrid B-type pulsator $\gamma$ Pegasi: mode identification and complex seismic modelling
• Complex asteroseismology of the hybrid B-type pulsator $\gamma$ Pegasi: a test of stellar opacities
• On the origin of the rotation of massive stars
• Fundamental parameters of some B-type stars using NOAO Indo-U.S. Library
• Investigation of projected rotational velocities of Be-type stars in LAMOST DR7