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相关论文: On the relation between globular cluster specific …

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Variations in the number of globular clusters per unit galaxy luminosity, which is the specific frequency, and the mass of globular clusters per unit total available mass, are reviewed. Correlations with galaxy luminosity and morphology,…

天体物理学 · 物理学 2009-10-31 Bruce G. Elmegreen

(Abridged): The total populations of globular cluster systems (GCSs) are discussed in terms of their connection to the efficiency of globular cluster formation---the mass fraction of star-forming gas that was able to form bound stellar…

天体物理学 · 物理学 2009-10-31 Dean E. McLaughlin

The relation between the globular cluster luminosity function (GCLF, dN/dlogL) and globular cluster mass function (GCMF, dN/dlogM) is considered. Due to low-mass star depletion, dissolving GCs have mass-to-light (M/L) ratios that are lower…

星系天体物理 · 物理学 2009-10-28 J. M. Diederik Kruijssen , Simon F. Portegies Zwart

We study the globular cluster (GC) populations of 21 giant elliptical galaxies in 19 Abell clusters. This method, applied here primarily in the R band, is based on the surface brightness fluctuations technique of extragalactic distance…

天体物理学 · 物理学 2009-10-30 John P. Blakeslee , John L. Tonry , Mark R. Metzger

Globular clusters (GC) are important objects for tracing the early evolution of a galaxy. We study the relation between the properties of globular cluster systems - as quantified by the GC specific frequency (SN) - and the properties of…

星系天体物理 · 物理学 2019-05-14 Ahmed H. Abdullah , Pavel Kroupa , Patrick Lieberz , Rosa Amelia Gonzalez-Lopezlira

A study of the globular cluster systems of 23 brightest, or central, galaxies in 19 Abell clusters has recently been completed. This Letter presents some of the newly discovered correlations of the globular cluster specific frequency $S_N$…

天体物理学 · 物理学 2009-10-30 John P. Blakeslee

The conversion of the globular cluster luminosity function (GCLF, dN/dlogL) to the globular cluster mass function (GCMF, dN/dlogM) is addressed. Dissolving globular clusters (GCs) become preferentially depleted in low-mass stars, which have…

星系天体物理 · 物理学 2011-02-11 J. M. Diederik Kruijssen , Simon F. Portegies Zwart

New VRI photometry is presented for the globular clusters in the innermost 140'' of the M87 halo. The results are used to discuss several issues concerning the formation and evolution of globular cluster systems in supergiant ellipticals…

天体物理学 · 物理学 2009-10-30 W. E. Harris , G. L. H. Harris , D. E. McLaughlin

The globular cluster (GC) specific frequency ($S_N$), defined as the number of GCs per unit galactic luminosity, represents the efficiency of GC formation (and survival) compared to field stars. Despite the naive expectation that star…

We present results from a study of the globular cluster luminosity function (GCLF) in a sample of 89 early-type galaxies observed as part of the ACS Virgo Cluster Survey. Using a Gaussian parametrization of the GCLF, we find a highly…

We investigate the globular cluster (GC) system scaling parameters as a function of galaxy mass, i.e. specific frequency (S_N), specific luminosity (S_L), specific mass (S_M), and specific number (^T) of GCs. We sample the entire range in…

宇宙学与河外天体物理 · 物理学 2015-05-18 Iskren Y. Georgiev , Thomas H. Puzia , Paul Goudfrooij , Michael Hilker

Using high-resolution numerical simulations, we investigate mass- and luminosity-normalized specific frequencies (T_N and S_N, respectively) of globular cluster systems (GCSs) in order to understand the origin of the observed U-shaped…

天体物理学 · 物理学 2016-08-30 Kenji Bekki , Hideki Yahagi , Duncan A. Forbes

We present the first results from our HST Brightest Cluster Galaxy (BCG) survey of seven central supergiant cluster galaxies and their globular cluster (GC) systems. We measure a total of 48000 GCs in all seven galaxies, representing the…

Globular cluster systems exhibit a bewildering variety of characteristics. No single scenario appears to be able to account for the wide range of specific globular cluster frequencies that are observed in galaxies of various types. The…

天体物理学 · 物理学 2009-10-31 Sidney van den Bergh

The luminosity distribution of globular clusters shows a dramatic dependence on parent galaxy luminosity. Dwarf galaxies contain far more faint globulars than do luminous galaxies. This difference is significant at the 99.7% level. On the…

天体物理学 · 物理学 2007-05-23 Sidney van den Bergh

Globular clusters (GCs) provide one way of determining when the most important periods of star formation in dwarf elliptical (dE) galaxies occurred. Thus, they are also useful for comparing the star formation histories of dwarf and giant…

天体物理学 · 物理学 2007-05-23 B. W. Miller , H. C. Ferguson , J. Lotz , M. Stiavelli , B. C. Whitmore

For the full galaxy mass range, we find that previously observed trends of globular cluster (GC) system scaling parameters (number, luminosity or mass of all GCs in a galaxy normalized to the host galaxy luminosity or mass, e.g. S_L) as a…

宇宙学与河外天体物理 · 物理学 2010-10-18 I. Y. Georgiev , T. H. Puzia , P. Goudfrooij , M. Hilker

Deep imaging data from the Keck II telescope are employed to study the globular cluster (GC) populations in the cores of six rich Abell clusters. The sample includes A754, A1644, A2124, A2147, A2151, and A2152, and spans the redshift range…

天体物理学 · 物理学 2009-10-31 John P. Blakeslee

The globular cluster luminosity function, specific globular cluster frequency, S_N, specific globular cluster mass, T_MP, and globular cluster mass fraction in dwarf elliptical galaxies are explored using the full 69 galaxy sample of the…

天体物理学 · 物理学 2009-11-13 Bryan W. Miller , Jennifer M. Lotz

Globular clusters provide a unique probe of galaxy formation and evolution. Here I briefly summarize the known observational properties of globular cluster systems. One re-occurring theme is that the globular cluster systems of spirals and…

天体物理学 · 物理学 2007-05-23 Duncan A. Forbes
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