Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997balta...6...11h&link_type=abstract
Baltic Astronomy, vol. 6, p. 11
Astronomy and Astrophysics
Astronomy
Globular Clusters, Metallicity, Galactic Evolution, Radial Distribution, Luminosity, Galactic Clusters, Brightness Distribution, Color, Galactic Structure, Astronomical Photometry
Scientific paper
Globular cluster systems are valuable tools for understanding the early history of galaxy formation and, in the past two decades, there has been considerable effort devoted to studies of globular dusters in external galaxies. There are now more than 60 galaxies for which we know such duster system properties as total population, radial distribution, luminosity distribution, and color distribution. While most duster systems appear to have similar characteristics from galaxy to galaxy, the color distributions obtained so far are less uniform. Many are broader and much less strongly peaked than the galactic cluster system color/metallicity distribution; some systems contain extremely blue clusters, and many contain clusters which are much redder than the reddest galactic globular dusters and, presumably, more metal-rich. However, these results are based primarily on broadband photometry, and spectroscopic data are sorely needed. Spectral line indices will lead to improved metallicity estimates for these globular dusters, but the interpretation is hampered by several effects, including range in age and calibration of the indices for metallicities greater than the most metal-rich galactic globular dusters.
No associations
LandOfFree
Probing galaxy histories via globular cluster metallicities 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 Probing galaxy histories via globular cluster metallicities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing galaxy histories via globular cluster metallicities will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1185924