The luminosity of the very red supergiant near the cluster TR 27

Journal Article · Thu Apr 15 04:00:00 EST 1976 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/154298· OSTI ID:7361372

Imhoff, C L; Keenan, P C

We identify the red supergiant to which Albers called attention as CoD -33degree12241. Because of its high color index (B - V=2.83) we used coude spectrograms in the red region to estimate the luminosity from line widths and relative intensities. Our classification of MO Ia implies M/subv/approx. =-7.2 +- 0.5, which suggests that the star lies somewhat behind the group of OB stars assigned by The and Stokes to this rather doubtful cluster. The radial velocity of CoD -33degree12241 is -11.4 +- 0.7 km s/sup -1/. (AIP)

• Research Organization: Perkins Observatory, Ohio State and Ohio Wesleyan Universities
• OSTI ID: 7361372
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 205:2; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATMOSPHERES
CHROMOSPHERE
COLOR
DWARF STARS
GIANT STARS
LUMINOSITY
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
PHYSICAL PROPERTIES
RADIAL VELOCITY
SOLAR ATMOSPHERE
STAR CLUSTERS
STARS
SUPERGIANT STARS
VELOCITY