2003AJ....125.1134E

Query : 2003AJ....125.1134E

2003AJ....125.1134E - Astron. J., 125, 1134-1149 (2003/March-0)

NGC 3256: kinematic anatomy of a merger.

ENGLISH J., NORRIS R.P., FREEMAN K.C. and BOOTH R.S.

Abstract (from CDS):

We have used the Australia Telescope Compact Array to image the neutral hydrogen in the merging system NGC 3256, to test the idea that globular clusters (GCs) form during the interactions and mergers of disk galaxies. We compare our observations with hydrodynamical numerical simulations from the literature to examine the hypothesis that the H I fragments with masses greater than 107±1 M☉are sites of GC formation. We appear to have detected detached H I fragments in the vicinity of NGC 3256. These fragments, with masses ∼107 M☉, may have little dark matter content, which is also a characteristic of globular clusters, and so our observations support the hypothesis that globular clusters form in the type of interaction that resulted in NGC 3256.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Interactions - Galaxies: Starburst - Galaxy: Globular Clusters: General - ISM: H I

Nomenclature: Fig.5, Table 2: [ENF2003] AN (Nos A1-A9).

Simbad objects: 16

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Number of rows : 16
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 NGC 1705 Sy2 04 54 13.4661493464 -53 21 39.471592428 12.32 12.96 12.56 12.58 12.9 ~ 692 1
2 [ENF2003] A7 HI 10 27 35.74 -43 55 12.0           ~ 1 0
3 [ENF2003] A5 HI 10 27 37.60 -43 51 16.0           ~ 1 0
4 [ENF2003] A4 HI 10 27 39.08 -43 50 32.0           ~ 1 0
5 NGC 3256 Sy2 10 27 51.284 -43 54 13.55   11.83 11.33 10.62 11.9 ~ 920 2
6 [ENF2003] A3 HI 10 27 52.40 -43 56 32.0           ~ 1 0
7 [ENF2003] A2 HI 10 27 54.98 -43 49 24.0           ~ 1 0
8 [ENF2003] A1 HI 10 27 58.71 -43 58 44.0           ~ 1 0
9 [ENF2003] A8 HI 10 27 59.79 -43 51 36.0           ~ 1 0
10 [ENF2003] A9 HI 10 28 06.45 -43 51 15.9           ~ 1 0
11 NGC 3561 LIN 11 11 13.1887412409 +28 41 47.044176908   14.7       ~ 202 2
12 NGC 4038 EmG 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1364 1
13 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1749 0
14 NGC 4039 GiP 12 01 53.51 -18 53 10.3   11.08   9.77   ~ 1173 1
15 NGC 7252 AGN 22 20 44.7748209648 -24 40 41.909518200 12.26 12.46 12.06 11.57   ~ 720 1
16 [ENF2003] A6 HI ~ ~           ~ 1 0

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