NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-22 T23:38:30 PDT
Help | Comment | NED Home

For refcode 2000A&A...358..471F:
Retrieve 34 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
2000A&A...358..471F The elliptical galaxy formerly known as the Local Group: merging the globular cluster systems. Forbes D.A., Masters K.L., Minniti D., Barmby P. Received 5 November 1999/Accepted 27 January 2000 Abstract. Prompted by a new catalogue of M31 globular clusters,we have collected together individual metallicity values for globular clusters in the Local Group. Although we briefly describe the globular cluster systems of the individual Local Group galaxies,the main thrust of our paper is to examine the collective properties. In this way we are simulating the dissipationless merger of the Local Group,into presumably an elliptical galaxy. Such a merger is dominated by the Milky Way and M31,which appear to be fairly typical examples of globular cluster systems of spiral galaxies. The Local Group `Elliptical' has about 700+/-125 globular clusters,with a luminosity function resembling the `universal' one. The metallicity distribution has peaks at [Fe/H]~-1.55 and -0.64 with a metal-poor to metal-rich ratio of 2.5:1. The specific frequency of the Local Group Elliptical is initially about 1 but rises to about 3,when the young stellar populations fade and the galaxy resembles an old elliptical. The metallicity distribution and stellar population corrected specific frequency are similar to that of some known early type galaxies. Based on our results,we briefly speculate on the origin of globular cluster systems in galaxies. Key words: galaxies: formation - Galaxy: halo - galaxies: star clusters - cosmology: observations - cosmology: early Universe
Retrieve 34 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home