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- W3104826024 endingPage "A4" @default.
- W3104826024 startingPage "A4" @default.
- W3104826024 abstract "We performed a large spectroscopic survey of compact, unresolved objects in the core of the Hydra I galaxy cluster (Abell 1060), with the aim of identifying ultra-compact dwarf galaxies (UCDs), and investigating the properties of the globular cluster (GC) system around the central cD galaxy NGC 3311. We obtained VIMOS medium resolution spectra of about 1200 candidate objects with apparent magnitudes 18.5 < V < 24.0 mag, covering both the bright end of the GC luminosity function and the luminosity range of all known UCDs. By means of spectroscopic redshift measurements, we identified 118 cluster members, from which 52 are brighter than M_V = -11.0 mag, and can therefore be termed UCDs. The brightest UCD in our sample has an absolute magnitude of M_V = -13.4 mag (corresponding to a mass of > 5 x 10^7 M_sun) and a half-light radius of 25 pc. This places it among the brightest and most massive UCDs ever discovered. Most of the GCs/UCDs are both spatially and dynamically associated to the central cD galaxy. The overall velocity dispersion of the GCs/UCDs is comparable to what is found for the cluster galaxies. However, when splitting the sample into a bright and a faint part, we observe a lower velocity dispersion for the bright UCDs/GCs than for the fainter objects. At a dividing magnitude of M_V = -10.75 mag, the dispersions differ by more than 200 km/s, and up to 300 km/s for objects within 5 arcmin around NGC 3311. We interpret these results in the context of different UCD formation channels, and conclude that interaction driven formation seems to play an important role in the centre of Hydra I." @default.
- W3104826024 created "2020-11-23" @default.
- W3104826024 creator A5016766986 @default.
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- W3104826024 creator A5043620022 @default.
- W3104826024 creator A5067301203 @default.
- W3104826024 creator A5089875471 @default.
- W3104826024 date "2011-05-30" @default.
- W3104826024 modified "2023-10-12" @default.
- W3104826024 title "A large population of ultra-compact dwarf galaxies in the Hydra I cluster" @default.
- W3104826024 cites W1513618424 @default.
- W3104826024 cites W1530558953 @default.
- W3104826024 cites W1963837031 @default.
- W3104826024 cites W1971160679 @default.
- W3104826024 cites W1972242974 @default.
- W3104826024 cites W1972352157 @default.
- W3104826024 cites W1973518746 @default.
- W3104826024 cites W1975954821 @default.
- W3104826024 cites W1978877719 @default.
- W3104826024 cites W1991941183 @default.
- W3104826024 cites W1993320079 @default.
- W3104826024 cites W1994671833 @default.
- W3104826024 cites W2000626296 @default.
- W3104826024 cites W2000957502 @default.
- W3104826024 cites W2001557588 @default.
- W3104826024 cites W2005434195 @default.
- W3104826024 cites W2005639341 @default.
- W3104826024 cites W2007088574 @default.
- W3104826024 cites W2007156143 @default.
- W3104826024 cites W2008204335 @default.
- W3104826024 cites W2008725550 @default.
- W3104826024 cites W2011641055 @default.
- W3104826024 cites W2015437799 @default.
- W3104826024 cites W2015557294 @default.
- W3104826024 cites W2015802080 @default.
- W3104826024 cites W2016888075 @default.
- W3104826024 cites W2032571249 @default.
- W3104826024 cites W2044042419 @default.
- W3104826024 cites W2045322559 @default.
- W3104826024 cites W2049416023 @default.
- W3104826024 cites W2052598803 @default.
- W3104826024 cites W2057597551 @default.
- W3104826024 cites W2059552417 @default.
- W3104826024 cites W2061585704 @default.
- W3104826024 cites W2066406099 @default.
- W3104826024 cites W2066572140 @default.
- W3104826024 cites W2068149521 @default.
- W3104826024 cites W2078869269 @default.
- W3104826024 cites W2082193378 @default.
- W3104826024 cites W2087142598 @default.
- W3104826024 cites W2088089730 @default.
- W3104826024 cites W2088686146 @default.
- W3104826024 cites W2089382722 @default.
- W3104826024 cites W2089780396 @default.
- W3104826024 cites W2092916207 @default.
- W3104826024 cites W2094284856 @default.
- W3104826024 cites W2099612136 @default.
- W3104826024 cites W2101725948 @default.
- W3104826024 cites W2102825905 @default.
- W3104826024 cites W2106143070 @default.
- W3104826024 cites W2106654062 @default.
- W3104826024 cites W2110085730 @default.
- W3104826024 cites W2111817932 @default.
- W3104826024 cites W2124386228 @default.
- W3104826024 cites W2130359837 @default.
- W3104826024 cites W2134127792 @default.
- W3104826024 cites W2137573215 @default.
- W3104826024 cites W2142238829 @default.
- W3104826024 cites W2143810010 @default.
- W3104826024 cites W2157506201 @default.
- W3104826024 cites W2165372548 @default.
- W3104826024 cites W2166210136 @default.
- W3104826024 cites W2167635287 @default.
- W3104826024 cites W2172188094 @default.
- W3104826024 cites W2601053151 @default.
- W3104826024 cites W2952988040 @default.
- W3104826024 cites W2998577721 @default.
- W3104826024 cites W3098458080 @default.
- W3104826024 cites W3098780292 @default.
- W3104826024 cites W3099528505 @default.
- W3104826024 cites W3100517618 @default.
- W3104826024 cites W3100580159 @default.
- W3104826024 cites W3101056924 @default.
- W3104826024 cites W3102577119 @default.
- W3104826024 cites W3103373458 @default.
- W3104826024 cites W3103806357 @default.
- W3104826024 cites W3104204129 @default.
- W3104826024 cites W3104263850 @default.
- W3104826024 cites W3105100316 @default.
- W3104826024 cites W3105215349 @default.
- W3104826024 cites W3125125055 @default.
- W3104826024 cites W3125131288 @default.
- W3104826024 cites W4253646736 @default.
- W3104826024 cites W4289800876 @default.
- W3104826024 cites W4290707612 @default.
- W3104826024 cites W4293228631 @default.
- W3104826024 cites W4302791485 @default.