SIMBAD references

2009ApJ...700..844P - Astrophys. J., 700, 844-858 (2009/July-3)

A FUSE survey of the rotation rates of very massive stars in the Small and Large Magellanic Clouds.


Abstract (from CDS):

We present projected rotational velocity values for 97 Galactic, 55 SMC, and 106 LMC O-B type stars from archival FUSE observations. The evolved and unevolved samples from each environment are compared through the Kolmogorov-Smirnov test to determine if the distribution of equatorial rotational velocities is metallicity dependent for these massive objects. Stellar interior models predict that massive stars with SMC metallicity will have significantly reduced angular momentum loss on the main sequence compared to their Galactic counterparts. Our results find some support for this prediction but also show that even at Galactic metallicity, evolved and unevolved massive stars have fairly similar fractions of stars with large Vsin i values. Macroturbulent broadening that is present in the spectral features of Galactic evolved massive stars is lower in the LMC and SMC samples. This suggests the processes that lead to macroturbulence are dependent upon metallicity.

Abstract Copyright:

Journal keyword(s): Magellanic Clouds - stars: early-type - stars: rotation - ultraviolet: stars

VizieR on-line data: <Available at CDS (J/ApJ/700/844): table1.dat table2.dat table3.dat notes.dat refs.dat>

Errata: Errors in tables 1: incorrect declination sign for BD-48 3437 and BD-60 2522 which are BD+48 3437 and BD+60 2522 respectively.

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 319

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