A photometric study of 11 massive stars in the Magellanic Clouds

Details A photometric study of 11 massive stars in the Magellanic Clouds A photometric study of 11 massive stars in the Magellanic Clouds

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005an....326..725v&link_type=abstract

Astronomische Nachrichten, Vol.326, Issue 8, p.725-730

Astronomy and Astrophysics

Astronomy

Stars: Variable-Stars, Supergiants-Technique, Photometry-Stars, Abundancies-Galaxies, Magellanic Clouds

Scientific paper

We present and discuss VBLUW photometry of eleven massive stars in the Magellanic Clouds: the SMC stars AzV 121, AzV 136 = HD 5277 = R 10, AzV 197, AzV 310 = R 26 and AzV 369; the LMC stars GV 80 = HD 32034 = R 62, GV 91 = HDE 268 819, GV 346 = HDE 269661 = R 111, GV 352 = HDE 269697, GV 423 = HDE 269953 = R 150 and GV 460 = HDE 270111. Only one G0 Ia SMC supergiant is found to be variable, whereas all members of the LMC sample show definite variability. We find that roughly above M/M\sun = 25, supergiants become photometrically unstable. The reddening-independent metal-index [B-L] is used to investigate the metallicity of the late-type supergiants in both galaxies relative to similar supergiants in the solar neighbourhood.

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