Ultra-Compact Dwarf Galaxies – More Massive than Allowed?
2007 ◽
Vol 3
(S246)
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pp. 427-428
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Keyword(s):
AbstractDynamical mass estimates of ultra-compact dwarfs galaxies and massive globular clusters in the Fornax and Virgo clusters and around the giant elliptical Cen A have revealed some surprising results: 1) above ~106M⊙ the mass-to-light (M/L) ratio increases with the objects' mass; 2) some UCDs/massive GCs show high M/L values (4 to 6) that are not compatible with standard stellar population models; and 3) in the luminosity-velocity dispersion diagram, UCDs deviate from the well-defined relation of “normal” GCs, being more in line with the Faber-Jackson relation of early-type galaxies. In this contribution, we present the observational evidences for high mass-to-light ratios of UCDs and discuss possible explanations for them.
2009 ◽
Vol 5
(S262)
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pp. 438-439
Keyword(s):
Keyword(s):
2010 ◽
Vol 6
(S277)
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pp. 174-177
2021 ◽
Vol 503
(1)
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pp. 1490-1506
2020 ◽
Vol 492
(3)
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pp. 3859-3871
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2019 ◽
Vol 14
(S351)
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pp. 108-111
Keyword(s):
2019 ◽
Vol 14
(S351)
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pp. 47-50
Keyword(s):
1996 ◽
Vol 171
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pp. 407-407
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