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Date and Time of the Query: 2019-05-20 T08:22:26 PDT
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For refcode 2016ApJ...818...99Z:
Retrieve 73 NED objects in this reference.
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Copyright by American Astronomical Society. Reproduced by permission
2016ApJ...818...99Z Globular Cluster Populations: Results Including S^4^G Late-type Galaxies Zaritsky, Dennis; McCabe, Kelsey; Aravena, Manuel; Athanassoula, E.; Bosma, Albert; Comeron, Sebastien; Courtois, Helene M.; Elmegreen, Bruce G.; Elmegreen, Debra M.; Erroz-Ferrer, Santiago; Gadotti, Dimitri A.; Hinz, Joannah L.; Ho, Luis C.; Holwerda, Benne; Kim, Taehyun; Knapen, Johan H.; Laine, Jarkko; Laurikainen, Eija; Munoz-Mateos, Juan Carlos; Salo, Heikki; Sheth, Kartik Abstract. Using 3.6 and 4.5 micron images of 73 late-type, edge-on galaxies from the S^4^G survey, we compare the richness of the globular cluster populations of these galaxies to those of early-type galaxies that we measured previously. In general, the galaxies presented here fill in the distribution for galaxies with lower stellar mass, M_*_, specifically {log}({M}_*_/{M}_o_)\lt 10, overlap the results for early-type galaxies of similar masses, and, by doing so, strengthen the case for a dependence of the number of globular clusters per 10^9^M_sun_ of galaxy stellar mass, T_N_, on M_*_. For 8.5\lt {log}({M}_*_/{M}_o_)\lt 10.5 we find the relationship can be satisfactorily described as {T}_{{N_}}={({M}_*_/{10}^6.7^)}^-0.56^ when M_*_ is expressed in solar masses. The functional form of the relationship is only weakly constrained, and extrapolation outside this range is not advised. Our late-type galaxies, in contrast to our early types, do not show the tendency for low-mass galaxies to split into two T_N_ families. Using these results and a galaxy stellar mass function from the literature, we calculate that, in a volume-limited, local universe sample, clusters are most likely to be found around fairly massive galaxies (M_*_ ~ 10^10.8^M_sun_) and present a fitting function for the volume number density of clusters as a function of parent-galaxy stellar mass. We find no correlation between T_N_ and large-scale environment, but we do find a tendency for galaxies of fixed M_*_ to have larger T_N_ if they have converted a larger proportion of their baryons into stars. Key words: galaxies: evolution, galaxies: star clusters: general, galaxies: stellar content
Retrieve 73 NED objects in this reference.
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