2000A&A...362..544K

Query : 2000A&A...362..544K

2000A&A...362..544K - Astronomy and Astrophysics, volume 362544-556 (2000/10-2)

A group of galaxies around the giant spiral NGC 6946.

KARACHENTSEV I.D., SHARINA M.E. and HUCHTMEIER W.K.

Abstract (from CDS):

We present large-scale CCD images of a dozen low surface brightness objects in the vicinity of giant Sc galaxy NGC 6946, which have been found recently on POSS-II copies. Six of them: UGC 11583, kk 251, kk 252, kkr 55, kkr 56, and kkr 59 are dwarf irregular galaxies resolved into stars. We determined their distances from the luminosity of the brightest blue stars. The mean estimated distance to the NGC 6946 group is 5.9±0.4Mpc. Together with Cepheus 1, discovered before, the group consist of 8 late type galaxies. Almost all of them are detected or marginally detected in the HI line. The group is characterized by a linear projected diameter of 420kpc, a radial velocity dispersion of 95km/s, and a virial mass-to-luminosity ratio about 56M☉/L☉.

Abstract Copyright: ∼

Journal keyword(s): galaxies: dwarf - galaxies: individual: NGC 6946 - galaxies: photometry

Simbad objects: 26

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Number of rows : 26
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 NAME IC 342 Group GrG 03 48 42 +68 00.8           ~ 102 1
3 NAME M 81-82 Group GrG 09 55 +69.1           ~ 758 0
4 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
5 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
6 M 83 SBG 13 37 00.91920 -29 51 56.7400 8.85 8.11 7.52 7.21   ~ 2778 2
7 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
8 LEDA 2801042 LSB 19 36 36.17 +54 38 20.8           ~ 6 0
9 LEDA 3097689 LSB 19 41 50.6 +68 34 14   18.0       ~ 6 0
10 LEDA 2801044 LSB 19 57 56.3 +62 37 21           ~ 7 0
11 LEDA 2807152 G 20 10 01.0 +66 05 01           ~ 4 0
12 LEDA 2801047 LSB 20 21 15.4 +52 28 03           ~ 5 0
13 UGC 11583 LSB 20 30 15.30 +60 26 25.0   17       ~ 66 0
14 LEDA 166192 LSB 20 30 32.9 +60 21 17   16.49       ~ 61 0
15 LEDA 166193 LSB 20 31 32.0 +60 48 44   16.15       ~ 26 0
16 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
17 ESO 74-2 LSB 20 38 21.1 -69 11 11   15.78   15.40   ~ 7 0
18 LEDA 2601822 LSB 20 45 20.7 +60 24 40   17.0       ~ 20 0
19 LEDA 2801051 LSB 20 47 32.5 +63 04 11           ~ 5 0
20 LEDA 2801050 LSB 20 48 24.1 +58 37 06   17.6       ~ 19 0
21 2MFGC 15772 LSB 20 49 32.732 +58 06 23.33           ~ 29 0
22 LEDA 2807153 LSB 20 57 59.4 +62 20 56   18.3       ~ 5 0
23 LEDA 2801052 LSB 21 03 24.1 +57 17 14   15.7       ~ 18 0
24 LEDA 2801053 LSB 21 05 52.9 +57 12 20           ~ 17 0
25 LEDA 2801055 LSB 21 30 44.8 +52 41 39           ~ 7 0
26 NAME NGC 6946 Group GrG ~ ~           ~ 17 0

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