2011A&A...528A.115W


Query : 2011A&A...528A.115W

2011A&A...528A.115W - Astronomy and Astrophysics, volume 528A, 115-115 (2011/4-1)

The globular cluster systems of Abell 1185.

WEST M.J., JORDAN A., BLAKESLEE J.P., COTE P., GREGG M.D., TAKAMIYA M. and MARZKE R.O.

Abstract (from CDS):

We examine the properties of a previously discovered population of globular clusters in the heart of the rich galaxy cluster Abell 1185 that might be intergalactic in nature. Deep images obtained with the Advanced Camera for Surveys (ACS) aboard Hubble Space Telescope (HST) confirm the presence of ∼1300 globular clusters brighter than I_ F814W_≃27.3mag in a field devoid of any large galaxies. The luminosities and colors of these objects are found to be similar to those of metal-poor globular clusters observed in many galaxies to date. Although a significant fraction of the detected globular clusters undoubtedly reside in the outer halos of galaxies adjacent to this field, detailed modeling of their distribution suggests that the majority of these objects are likely to be intergalactic, in the sense that they are not gravitationally bound to any individual galaxy. We conclude that the true nature and origin of the globular cluster population in the core of A1185 - galactic residents or intergalactic wanderers - remains uncertain, and suggest how future observation could resolve this ambiguity.

Abstract Copyright:

Journal keyword(s): galaxies: elliptical and lenticular, cD - galaxies: formation - galaxies: interactions - globular clusters: general - galaxies: clusters: individual: Abell 1185

Simbad objects: 18

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Number of rows : 18
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 ACO S 373 ClG 03 38 30 -35 27.3           ~ 1624 0
2 ACO 1185 ClG 11 10 31.4 +28 43 39           ~ 247 1
3 LEDA 1843384 G 11 10 35.043 +28 42 05.22           ~ 3 0
4 2MASX J11103683+2842138 GiC 11 10 36.8163680519 +28 42 13.955370799           ~ 3 0
5 2MASX J11103744+2843578 EmG 11 10 37.4722709946 +28 43 57.671629767   15.5 14.89     ~ 31 0
6 2MASX J11103767+2841528 GiC 11 10 37.6916852176 +28 41 53.340242798           ~ 4 0
7 NGC 3550 IG 11 10 38.26 +28 46 02.2   14.12 13.22     ~ 25 1
8 2MASX J11103964+2845208 GiC 11 10 39.650 +28 45 20.81           ~ 4 0
9 2MASX J11103987+2842248 GiC 11 10 39.8666688598 +28 42 25.126370009   17.5       ~ 7 0
10 NGC 3553 GiG 11 10 40.3058571854 +28 41 08.332160876   14.0       ~ 22 0
11 2MASX J11104185+2845408 G 11 10 41.9 +28 45 41           ~ 1 0
12 NGC 3552 GiG 11 10 42.843 +28 41 34.82   15.1       ~ 33 0
13 2MASX J11104649+2841338 GiG 11 10 46.490 +28 41 33.81   15.1       ~ 8 0
14 2MASX J11105850+2842384 G 11 10 58.479 +28 42 38.46           ~ 3 0
15 2MASX J11105941+2844424 GiG 11 10 59.4311770097 +28 44 42.465573076   16.55 15.63     ~ 16 0
16 NGC 3561 LIN 11 11 13.2 +28 41 47   14.7       ~ 198 2
17 NAME Vir I ClG 12 26 32.1 +12 43 24   10.00 8.49     ~ 6068 0
18 ACO 1656 ClG 12 59 48.7 +27 58 50           ~ 4368 2

    Equat.    Gal    SGal    Ecl

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2021.07.25-15:12:32

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