The Not So Extraordinary Globular Cluster 037-B327 in M31
نویسندگان
چکیده
منابع مشابه
The Not so Extraordinary Globular Cluster 037-b327 in M31
A velocity dispersion has been measured for the luminous globular cluster M31 037-B327, claimed to be the most massive star cluster in the Local Group and to be a young “super star cluster” that has survived to an old age. M31 037-B327 has a mass comparable to that of M31 G1 but not significantly larger. Although near the upper end for the mass distribution of globular clusters, it is not an un...
متن کامل037-b327 in M31: Luminous Globular Cluster or Core of a Former Dwarf Spheroidal Companion to M31?
037-B327 is of interest because it is both the most luminous and the most highly reddened cluster known in M31. Deep observations with the Advanced Camera for Surveys on the Hubble Space T elescope provide photometric data in the F606W band, and also show that this cluster is crossed by a dust lane. We determined the structural parameters of 037-B327 by fitting the observed surface brightness d...
متن کاملar X iv : a st ro - p h / 06 10 86 3 v 1 2 9 O ct 2 00 6 The Not So Extraordinary Globular Cluster M 31 037 – B 327 1
A velocity dispersion has been measured for the luminous globular cluster M31 037–B327, claimed to be the most massive star cluster in the Local Group and to be a young “super star cluster” that has survived to an old age. M31 037– B327 has a mass comparable to that of M31 G1, but not significantly larger. Although near the upper end for the mass distribution of globular clusters, it is not an ...
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With the ultimate aim of distinguishing between various models describing the formation of galaxy halos (e.g. radial or multi-phase collapse, random mergers), we have completed a spectroscopic study of the globular cluster system of M31. We present the results of deep, intermediate-resolution, fibre-optic spectroscopy of several hundred of the M31 globular clusters using the Wide Field Fibre Op...
متن کاملReddening, Colour and Metallicity of the M31 Globular Cluster System
Using metallicities from the literature, combined with the Revised Bologna Catalogue of photometric data for M31 clusters and cluster candidates (the latter of which is the most comprehensive catalogue of M31 clusters currently available, including 337 confirmed globular clusters – GCs – and 688 GC candidates), we determine 443 reddening values and intrinsic colours, and 209 metallicities for i...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2006
ISSN: 0004-637X,1538-4357
DOI: 10.1086/510384