Do Clusters Contain a Large Population of Dwarf Galaxies?
نویسندگان
چکیده
منابع مشابه
Globular Clusters in Dwarf Galaxies
Recent work on globular cluster systems in dwarf galaxies outside the Local Group is reviewed. Recent large imaging surveys with the Hubble Space Telescope and follow-up spectroscopy with 8-m class telescopes now allow us to compare the properties of massive star clusters in a wide range of galaxy types and environments. This body of work provides important constraints for theories of galaxy an...
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Data are presently available on the luminosities and half-light radii of 101 globular clusters associated with lowluminosity parent galaxies. The luminosity distribution of globulars embedded in dwarf galaxies havingMv > −16 is found to differ dramatically from that for globular clusters surrounding giant host galaxies with Mv < −16. The luminosity distribution of globular clusters in giant gal...
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Many clusters of galaxies contain an appreciable amount of hot gas, the intracluster medium. As a consequence, gas will be stripped from galaxies that move through the inter cluster medium, if the ram pressure exceeds the internal gravitational force. We study the interaction between the intracluster medium and an extended gas component of dwarf galaxies confined by a surrounding cold dark matt...
متن کاملGlobular Clusters and Dwarf Spheroidal Galaxies
Traditionally globular clusters and dwarf spheroidal galaxies have been distinguished by using one or more of the following criteria: (1) mass, (2) luminosity, (3) size, (4) mass-to-light ratio and (5) spread in metallicity. However, a few recently discovered objects show some overlap between the domains in parameter space that are occupied by galaxies and clusters. In the present note it is sh...
متن کاملMassive star clusters in dwarf starburst galaxies
I will discuss the presence of massive star clusters in starburst galaxies with an emphasis on low mass galaxies outside the local group. I will show that such galaxies, with respect to their mass and luminosity, may be very rich in young luminous clusters.
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2001
ISSN: 0004-637X,1538-4357
DOI: 10.1086/318241