2001A&A...367...33D


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.09CEST05:21:51

2001A&A...367...33D - Astronomy and Astrophysics, volume 367, 33-45 (2001/2-3)

The 1 to 2.5 µ broad band emission of Blue Compact Dwarf Galaxies.

DOUBLIER V., CAULET A. and COMTE G.

Abstract (from CDS):

We present J, H and K surface photometry of 12 Blue Compact Dwarf Galaxies (BCDGs) selected from the southern sample (Doublier et al., 1999A&AS..138..213D). A systematic excess of light in the K band with respect to the other bands in the visible and the near infrared is observed, indicating, since nebular emission is negligible, that a stellar population of red giants dominates the global flux from the galaxy. Moreover, comparisons of the metallicity-color relations of BCDGs and globular clusters show very little differences, indicating that BCDGs are most probably old, in the cosmological sense, systems. Local colors of the star forming regions show that these regions are indeed very young and possibly coeval across the galaxy when several starburst locations exist. At least 4 BCDGs (UM 465A and B, Haro 14 and Tololo 0610-378) show evidence of the presence of young red supergiant stars. The light distributions in the J, H and K bands are generally consistent with those in the optical, the differences are discussed. We confirm that our optical photometric classification remains valid in the near infrared. Thus, the global light distribution in the galaxy is an intrinsic property of the host galaxy independent of the presence of the starburst.

Abstract Copyright:

Journal keyword(s): galaxies: compact - dwarf - fundamental parameters - stellar content

CDS comments: Abstract: Tol 0610-378 misprint for 0610-387

Simbad objects: 14

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Number of rows : 14

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 244 bCG 00 45 46.4181876205 -15 35 48.385823743   14.1   13.04 13.4 ~ 76 0
2 QSO B0125-0635 QSO 01 27 35.5241670251 -06 19 35.428005150 14.75 15.05 14.48 14.06 13.70 ~ 89 0
3 Mrk 600 G 02 51 04.57 +04 27 13.9 14.76 15.07 14.70 14.50 14.29 ~ 117 0
4 SBSG 0335-052 bCG 03 37 44.04 -05 02 38.5     16.65     ~ 433 1
5 NGC 1522 EmG 04 06 07.900 -52 40 05.91 14.53 14.16 13.78 13.62 14.0 ~ 59 0
6 6dFGS gJ061214.3-384623 G 06 12 14.192 -38 46 23.34   16.44 16.02 15.43   ~ 17 0
7 SCHG 0645-376 H2G 06 46 50.1370 -37 43 21.644     16.84     ~ 26 0
8 Mrk 116 PaG 09 34 02.1 +55 14 25           ~ 997 1
9 2MASX J09561480-2936187 G 09 56 14.806 -29 36 18.71   16       ~ 10 0
10 ESO 435-20 H2G 09 59 21.226 -28 08 00.04   14.42 14.08 13.33   ~ 78 2
11 NGC 3125 H2G 10 06 33.318 -29 56 07.32 13.03 13.45 13.00 12.50 13.4 ~ 216 1
12 LEDA 37102 Sy1 11 51 33.3534243441 -02 22 21.893770899   17       ~ 143 0
13 UM 465B GiP 11 54 12.33 +00 08 12.2           ~ 3 0
14 UM 465A GiP 11 54 12.33 +00 08 12.2           ~ 2 0

    Equat.    Gal    SGal    Ecl

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2020.08.09-05:21:51

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