Studies of luminous stars in nearby galaxies. II - M supergiants in the Large Magellanic Cloud

Abstract

view Abstract Citations (97) References (31) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Studies of luminous stars in nearby galaxies. II. M supergiants in the Large Magellanic Cloud. Humphreys, R. M. Abstract Basic properties of the brightest red stars in the Large Magellanic Cloud (LMC) are determined from BVRI photometry of 157 red stars and spectra of 74 of the brightest red stars, including 54 confirmed supergiants. The luminosities, reddening, and colors of the M supergiants are obtained. H-R diagrams for the luminous stars of all spectral types in the LMC are provided, and general features of these diagrams are examined. The ratio of blue to red supergiants in the LMC is estimated to be 5 for distances of no more than 1 kpc from the center, 3.5 for distances of 1 to 2 kpc, 3.8 for distances of 2 to 3 kpc, and 2.3 for distances of at least 3 kpc. It is shown that the luminous red stars in the LMC and the Galaxy have essentially the same spectral characteristics and luminosities. Publication: The Astrophysical Journal Supplement Series Pub Date: March 1979 DOI: 10.1086/190578 Bibcode: 1979ApJS...39..389H Keywords: M Stars; Magellanic Clouds; Stellar Luminosity; Stellar Spectrophotometry; Supergiant Stars; Hertzsprung-Russell Diagram; Hot Stars; Late Stars; Red Giant Stars; Tables (Data); Astronomy; HR Diagrams:Luminous Stars; Luminosities:M Supergiants; M Supergiants:Magellanic Clouds full text sources ADS | data products SIMBAD (58) NED (24) Related Materials (7) Part 1: 1978ApJS...38..309H Part 3: 1979ApJ...232..409H Part 4: 1979ApJ...234..854H Part 5: 1980ApJ...238...65H Part 6: 1980ApJ...241..587H Part 7: 1980ApJ...241..598H Part 8: 1983ApJ...265..176H