Far-Ultraviolet Luminosity Functions for the Globular Clusters M3 and M13

Abstract

view Abstract Citations (6) References (24) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Far-Ultraviolet Luminosity Functions for the Globular Clusters M3 and M13 Whitney, J. H. ; O'Connell, R. W. ; Rood, R. T. ; Hill, R. S. ; Landsman, W. B. ; Bohlin, R. C. ; Roberts, M. S. ; Smith, A. M. ; Stecher, T. P. Abstract Far-ultraviolet images of the globular clusters M3 (NOC 5272) and Ml3 (NUC 6205) obtained with the Ultraviolet Imaging Telescope during the 1990 December Astro-1 mission are presented. 74 sources are detected down to an FUV limiting magnitude of 16.0 in M3, and 56 sources to magnitude 14.2 in Ml3. Although the two clusters are similar in total population, luminosity, and metallicity, M 13 has a much larger population of stars with FUV magnitudes brighter than the zero age horizontal branch. The relative numbers of UV-bright stars in the two clusters are in good agreement with theoretical post-HB evolutionary tracks for normal, non-binary stars given the amount of red giant branch mass loss inferred from the optical color-magnitude diagrams. Publication: The Astronomical Journal Pub Date: October 1995 DOI: 10.1086/117644 Bibcode: 1995AJ....110.1722W Keywords: GLOBULAR CLUSTERS: INDIVIDUAL: M3; GLOBULAR CLUSTERS: INDIVIDUAL: M13; STARS: ABUNDANCES full text sources ADS | data products SIMBAD (133) MAST (2)