Stellar rotation and the Beta Canis Majoris stars.

Abstract

view Abstract Citations (2) References Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Stellar rotation and the Beta Canis Majoris stars. McNamara, D. H. ; Hansen, Kimball ; Walton, W. Abstract A statistical investigation of all the B I and B2 stars (luminosity class Ill-V) north of declination 300 and brighter than magnitude 5.6 has revealed that 23 stars have apparent rotational velocities (V sin i) in the same range as the p CMa variable stars. Of these 23 stars, I I are known to be p CMa variable stars. According to the difference between the observed V sin i and true distribution V of rotational velocities derived by Slettebak, this is approximately the number we would expect to be p CMa variables if all BI and B2 stars (proper luminosity class) with rotational velocities below a certain critical value pulsate and show p CMa characteristics. The 12 other stars, therefore, are probably stars of large rotation with their axis of rotation approximately in the line of sight. The sin i factor is near zero and hence the measured values of V sin i are small. Brigham Voung University Provo, Utah Publication: The Astronomical Journal Pub Date: 1959 DOI: 10.1086/108003 Bibcode: 1959AJ.....64Q.341M full text sources ADS |