Abstract
view Abstract Citations (13) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The M supergiants in NGC 300. Humphreys, R. M. ; Graham, J. A. Abstract The authors have surveyed the nearby Sc spiral NGC 300 for its brightest red stars and have confirmed six of the brightest candidates to be definite M supergiants. The authors have used far-red spectroscopy and the strength of the Ca II triplet (≈λ8500) as a luminosity discriminant between supergiants and foreground red dwarfs, plus near-infrared (JHK) photometry to derive accurate extinction and bolometric luminosities. Adopting Graham's (1984) true distance modulus of 26.1 mag for NGC 300 it is found that its brightest M supergiants have Mv near -8 mag and MBol ≤ -9.5 mag. A comparison with the brightest red supergiants in the morphologically similar galaxies M33 and NGC 2403 suggests that these galaxies have very similar populations of evolved massive stars. Publication: The Astronomical Journal Pub Date: March 1986 DOI: 10.1086/114031 Bibcode: 1986AJ.....91..522H Keywords: Astronomical Spectroscopy; M Stars; Spiral Galaxies; Supergiant Stars; Infrared Photometry; Spectral Line Width; Stellar Color; Stellar Luminosity; Astronomy full text sources ADS | data products SIMBAD (49) NED (9)
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
