2009MNRAS.395..436H

Query : 2009MNRAS.395..436H

2009MNRAS.395..436H - Mon. Not. R. Astron. Soc., 395, 436-442 (2009/May-1)

Globular cluster candidates in NGC 891.

HARRIS W.E., MOUHCINE M., REJKUBA M. and IBATA R.

Abstract (from CDS):

We use deep images taken with the Advanced Camera for Surveys (ACS) on board the Hubble Space Telescope of the disc galaxy NGC 891 to search for globular cluster (GC) candidates. This galaxy has long been considered to be a close analogue in size and structure to the Milky Way and is nearly edge-on, facilitating studies of its halo population. These extraplanar ACS images, originally intended to study the halo field-star populations, reach deep enough to reveal even the faintest GCs that would be similar to those in the Milky Way. From the three pointings, we have identified a total of 43 candidates after culling by object morphology, magnitude and colour. We present (V, I) photometry for all of these, along with measurements of their effective radius and ellipticity. The 16 highest-rank candidates within the whole sample are found to fall in very much the same regions of parameter space occupied by the classic Milky Way GCs. Our provisional conclusion from this survey is that the total GC population in NGC 891 as a whole may be almost as large as that of the Milky Way.

Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS

Journal keyword(s): globular clusters: general - galaxies: star clusters

Nomenclature: Table 1: [HMR2009] GNN (Nos G01-G43).

Simbad objects: 49

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Number of rows : 49
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
3 [HMR2009] G1 Gl? 02 22 29.813 +42 20 19.01         21.278 ~ 1 0
4 [HMR2009] G2 Gl? 02 22 30.172 +42 20 19.92         22.939 ~ 1 0
5 [HMR2009] G3 Gl? 02 22 30.193 +42 20 20.94         22.676 ~ 1 0
6 [HMR2009] G4 Gl? 02 22 30.510 +42 20 22.02         23.723 ~ 1 0
7 [HMR2009] G5 Gl? 02 22 30.549 +42 20 25.73         23.517 ~ 2 0
8 [HMR2009] G6 Gl? 02 22 31.038 +42 19 51.96         21.954 ~ 1 0
9 [HMR2009] G7 Gl? 02 22 31.161 +42 20 07.85         22.087 ~ 1 0
10 [HMR2009] G8 Gl? 02 22 31.554 +42 19 49.30         22.552 ~ 1 0
11 [HMR2009] G9 Gl? 02 22 31.620 +42 19 56.58         22.615 ~ 1 0
12 [HMR2009] G10 Gl? 02 22 32.275 +42 20 18.08         22.950 ~ 1 0
13 [HMR2009] G11 Gl? 02 22 32.480 +42 20 19.36         22.092 ~ 1 0
14 [HMR2009] G12 Gl? 02 22 32.812 +42 20 11.52         22.548 ~ 1 0
15 NGC 891 H2G 02 22 32.907 +42 20 53.95 11.08 10.81 9.93 7.86   ~ 1741 2
16 [HMR2009] G13 Gl? 02 22 33.680 +42 20 32.71         20.378 ~ 1 0
17 [HMR2009] G14 Gl? 02 22 33.823 +42 19 37.80         19.449 ~ 1 0
18 [HMR2009] G15 Gl? 02 22 35.366 +42 18 35.02         23.823 ~ 1 0
19 [HMR2009] G16 Gl? 02 22 35.672 +42 19 14.83         23.141 ~ 1 0
20 [HMR2009] G17 Gl? 02 22 36.087 +42 18 57.44         21.773 ~ 1 0
21 [HMR2009] G18 Gl? 02 22 36.139 +42 20 25.20         21.661 ~ 1 0
22 [HMR2009] G19 Gl? 02 22 40.375 +42 23 22.95         22.269 ~ 2 0
23 [HMR2009] G20 Gl? 02 22 40.556 +42 23 20.87         22.789 ~ 2 0
24 [HMR2009] G21 Gl? 02 22 40.782 +42 22 45.05         21.559 ~ 1 0
25 [HMR2009] G22 Gl? 02 22 40.955 +42 20 37.73         23.823 ~ 2 0
26 [HMR2009] G23 Gl? 02 22 41.492 +42 20 17.19         21.783 ~ 1 0
27 [HMR2009] G24 Gl? 02 22 42.893 +42 23 46.96         20.446 ~ 1 0
28 [HMR2009] G25 Gl? 02 22 43.018 +42 23 31.33         22.630 ~ 1 0
29 [HMR2009] G26 Gl? 02 22 43.751 +42 23 58.50         20.832 ~ 1 0
30 [HMR2009] G27 Gl? 02 22 44.260 +42 24 05.24         23.118 ~ 2 0
31 [HMR2009] G28 Gl? 02 22 44.330 +42 22 01.11         24.836 ~ 1 0
32 [HMR2009] G29 Gl? 02 22 44.432 +42 24 04.66         21.971 ~ 1 0
33 [HMR2009] G30 Gl? 02 22 44.855 +42 24 03.48         20.931 ~ 1 0
34 [HMR2009] G31 Gl? 02 22 45.340 +42 19 35.72         23.356 ~ 1 0
35 [HMR2009] G32 Gl? 02 22 45.479 +42 25 57.37         23.565 ~ 1 0
36 [HMR2009] G33 Gl? 02 22 45.524 +42 20 55.68         23.259 ~ 1 0
37 [HMR2009] G34 Gl? 02 22 46.153 +42 25 44.12         20.947 ~ 1 0
38 [HMR2009] G35 Gl? 02 22 46.508 +42 19 57.47         23.385 ~ 1 0
39 [HMR2009] G36 Gl? 02 22 47.174 +42 26 02.38         22.887 ~ 1 0
40 [HMR2009] G37 Gl? 02 22 47.559 +42 25 59.04         23.000 ~ 1 0
41 [HMR2009] G38 Gl? 02 22 48.258 +42 25 42.99         21.025 ~ 1 0
42 [HMR2009] G39 Gl? 02 22 48.340 +42 24 00.36         20.840 ~ 1 0
43 [HMR2009] G40 Gl? 02 22 52.621 +42 24 55.47         22.075 ~ 2 0
44 [HMR2009] G41 Gl? 02 22 54.630 +42 22 54.76         23.434 ~ 1 0
45 [HMR2009] G42 Gl? 02 22 56.820 +42 23 10.47         20.654 ~ 1 0
46 [HMR2009] G43 Gl? 02 22 57.695 +42 22 44.83         23.592 ~ 1 0
47 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
48 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
49 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0

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