Title: Optical and ultraviolet observations of the X-ray globular cluster BO 158 in M31
Abstract: view Abstract Citations (22) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Optical and ultraviolet observations of the X-ray globular cluster BO 158 in M31 Cacciari, C. ; Cassatella, A. ; Bianchi, L. ; Fusi Pecci, F. ; Kron, R. G. Abstract It is pointed out that the study of the globular cluster system in a galaxy is very important for understanding the formation, dynamics, and chemical evolution of that galaxy. The present investigation represents an attempt to determine the population content of the globular cluster Bo 158 in M31 through the analysis of its energy distribution in the visible and UV wavelength regions. The results are compared with the Galactic globular clusters for which analogous data are available. On the basis of the findings in the investigation it is concluded that Bo 158 in M31 shows characteristics of an EB-type cluster from the UV data, while the optical integrated photometry and spectroscopy would rather classify it as a relatively red metal-rich cluster. With allowance for the observational errors associated with the data, this discrepancy can be explained most likely by assuming that the 'second parameter' problem involved in the classification of globular clusters exists in M31 as well. Publication: The Astrophysical Journal Pub Date: October 1982 DOI: 10.1086/160320 Bibcode: 1982ApJ...261...77C Keywords: Andromeda Galaxy; Galactic Evolution; Globular Clusters; Spectral Energy Distribution; Ultraviolet Spectra; X Ray Sources; Chemical Evolution; Iue; Spaceborne Astronomy; Spectrum Analysis; Astrophysics full text sources ADS | data products NED (5) MAST (1) INES (1)