Keck Spectroscopy of Globular Clusters in the Virgo Cluster Dwarf Elliptical Galaxy VCC 1386
نویسندگان
چکیده
منابع مشابه
Keck Spectroscopy of Dwarf Elliptical Galaxies in the Virgo Cluster
Keck spectroscopy is presented for four dwarf elliptical galaxies in the Virgo Cluster. At this distance, the mean velocity and velocity dispersion are well resolved as a function of radius between 100 to 1000 pc, allowing a clear separation between nuclear and surrounding galaxy light. We find a variety of dispersion profiles for the inner regions of these objects, and show that none of these ...
متن کاملThe Globular Cluster System of the Virgo Dwarf Elliptical Galaxy Vcc
We present an analysis of the globular cluster (GC) system of the nucleated dwarf elliptical galaxy VCC 1087 in the Virgo cluster, based on Keck/LRIS spectroscopy and archival Hubble Space Telescope/Advanced Camera for Surveys imaging. We estimate VCC 1087 hosts a total population of 77 ± 19 GCs, which corresponds to a relatively high V -band specific frequency of 5.8 ± 1.4. The g 475− z 850 co...
متن کاملThe Globular Cluster System of the Virgo Dwarf Elliptical Galaxy Vcc 1087
We present an analysis of the globular cluster (GC) system of the nucleated dwarf elliptical galaxy VCC 1087 in the Virgo cluster, based on Keck/LRIS spectroscopy and archival Hubble Space Telescope/Advanced Camera for Surveys imaging. We estimate VCC 1087 hosts a total population of 77 ± 19 GCs, which corresponds to a relatively high V -band specific frequency of 5.8 ± 1.4. The g 475− z 850 co...
متن کاملKeck Spectroscopy of Globular Clusters in the Virgo Cluster
We present the results of a Keck spectroscopic study of globular clusters associated with the Virgo Cluster dwarf elliptical VCC 1386. We analyze blue spectroscopic absorption lines from 3500-5500 Å for 13 globular cluster candidates and confirm that five are associated with VCC 1386. By comparing metal and Balmer line indices of these globular clusters with α-enhanced single stellar population...
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We analyze high signal-to-noise spectra for 14 globular clusters (GCs) in the Sombrero galaxy, NGC 4594 = M104, obtained with the LRIS spectrograph on the Keck I telescope. We find generally good agreement between spectroscopic metallicities and previous photometric metallicites based on V −I colors. Further, we use measurements of various Balmer line indices on co-added spectra of metal-poor a...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2006
ISSN: 0004-637X,1538-4357
DOI: 10.1086/499269