Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...191.8219b&link_type=abstract
American Astronomical Society, 191st AAS Meeting, #82.19; Bulletin of the American Astronomical Society, Vol. 29, p.1345
Astronomy and Astrophysics
Astronomy
Scientific paper
We present Faint Object Camera ultraviolet images of Messier 31 and Messier 32. The hot stellar population detected in the composite UV spectra of these nearby galaxies is partially resolved into individual stars, and their individual colors and luminosities are measured. Although our photometry does not extend to the horizontal branch (HB) itself, we can detect and characterize stars that are in the bright phases of post-HB evolution for the entire range of mass on the HB. Many of our detected stars imply the existence of an extended HB in the cores of these galaxies. These hot stars are the extragalactic counterparts to the hot subdwarfs in our own Galactic field, and their confirmed existence in neighboring galaxies supplies an important validation to explanations of the ultraviolet upturn phenomenon found in ellipticals and spiral bulges.
Brown Ted M.
Davidsen Arthur F.
Deharveng Jean Michel
Ferguson Henry C.
Stanford Spencer A.
No associations
LandOfFree
Color--Luminosity Relations for the Resolved Hot Stellar Populations in the Centers of M31 and M32 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Color--Luminosity Relations for the Resolved Hot Stellar Populations in the Centers of M31 and M32, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Color--Luminosity Relations for the Resolved Hot Stellar Populations in the Centers of M31 and M32 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1175811