2020A&A...643A.124K

Query : 2020A&A...643A.124K

2020A&A...643A.124K - Astronomy and Astrophysics, volume 643A124-124 (2020/11-1)

Distance and mass of the M 104 (Sombrero) group.

KARACHENTSEV I.D., MAKAROVA L.N., TULLY R.B., ANAND G.S., RIZZI L. and SHAYA E.J.

Abstract (from CDS):


Aims. Distances and radial velocities of galaxies in the vicinity of the luminous early-type galaxy M 104 (Sombrero) are used to derive its dark matter mass.
Methods. Two dwarf galaxies: UGCA 307 and KKSG 30 situated near M 104 were observed with the Advanced Camera for Surveys on the Hubble Space Telescope. The distances 9.03–0.51+0.84Mpc (UGCA 307) and 9.72–0.41+0.44Mpc (KKSG 30) were determined using the tip of the red giant branch method. These distances are consistent with the dwarf galaxies being satellites of Sombrero.
Results. Using radial velocities and projected separations of UGCA 307, KKSG 30, and a third galaxy with an accurate distance (KKSG 29), as well as 12 other assumed companions with less accurate distances, the total mass of M 104 is estimated to be (1.55±0.49)x1013M☉. At the K-band luminosity of the Sombrero galaxy of 2.4x1011L☉, its total mass-to-luminosity ratio is MT/LK=(65±20)M☉/L☉, which is about three times higher than that of luminous bulgeless galaxies.

Abstract Copyright: © ESO 2020

Journal keyword(s): galaxies: dwarf - galaxies: distances and redshifts - galaxies: photometry - galaxies: individual: M 104 - galaxies: individual: UGCA 307 - galaxies: individual: KKSG 30

Simbad objects: 63

goto Full paper

goto View the references in ADS

Number of rows : 63
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 MCG-02-31-026 AG? 12 16 29.00 -11 31 41.7   15.0   15.0 14.7 ~ 27 0
3 MCG-02-31-028 EmG 12 17 11.9659 -11 40 40.066   15.6   15.7 15.6 ~ 15 0
4 LEDA 104765 AG? 12 21 43.87 -12 39 56.5           ~ 7 0
5 LEDA 3097706 EmG 12 22 05.7 -09 48 01   16.7   16.6 16.2 ~ 11 0
6 UGCA 278 EmG 12 23 10.30 -13 56 45.0   15.3   15.2 15.3 ~ 15 0
7 6dFGS gJ122549.4-110305 AGN 12 25 49.38456 -11 03 05.5116   16.68   15.88   ~ 11 0
8 LEDA 157820 EmG 12 30 01.7595980736 -11 47 31.080551064   16.20   15.15   ~ 8 0
9 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
10 NAME Local Supercluster SCG 12 31 +12.4           ~ 566 0
11 NGC 4487 EmG 12 31 04.4731449720 -08 03 14.548820040   11.7   11.9 11.6 ~ 189 0
12 NGC 4504 EmG 12 32 17.4213303288 -07 33 48.904197084   12.1   11.31 12.3 ~ 132 0
13 MCG-02-32-015 AG? 12 33 55.40 -10 40 46.6   15       ~ 25 0
14 MCG-01-32-028 GiG 12 35 37.0 -07 52 41   13.3   13.3 13.0 ~ 46 0
15 LEDA 970397 EmG 12 35 39.36 -11 04 01.6   15.75   14.98   ~ 14 0
16 [CGB2020] dw1237-1125 G 12 37 11.6 -11 26 00           ~ 4 0
17 LEDA 42120 LSB 12 37 14.0 -10 29 51           ~ 19 0
18 LEDA 3097708 G 12 37 35.8 -08 52 02   17.3       ~ 15 0
19 LEDA 3097709 G 12 38 33.7 -10 29 25           ~ 15 0
20 [CGB2020] dw1239-1152 G? 12 39 09.00 -11 52 36.6           ~ 2 0
21 [CGB2020] dw1239-1159 G 12 39 09.0 -11 59 12           ~ 4 0
22 [C83] NGC 4594 DW1 G 12 39 15.36 -11 43 11.4   17.18 16.56     ~ 9 0
23 [CGB2020] dw1239-1113 LSB 12 39 32.8 -11 13 36           ~ 8 0
24 LEDA 1024576 AG? 12 39 44.72 -07 05 18.9           ~ 10 0
25 LEDA 3097710 LSB 12 39 54.9 -11 44 46           ~ 20 0
26 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1465 2
27 NAME Sombrero UCD 1 G 12 40 03.1428796848 -11 40 04.430325936   18.0 17.46 16.5   ~ 27 1
28 LEDA 3097711 G 12 40 08.9 -12 21 53           ~ 16 0
29 LEDA 42428 G 12 40 09.4 -11 18 50           ~ 9 0
30 NGC 4597 GiP 12 40 12.931 -05 47 57.44   12.3   11.9 12.2 ~ 94 0
31 [CGB2020] dw1240-1140 G 12 40 17.6 -11 40 45           ~ 4 0
32 [CGB2020] dw1241-1131 G 12 41 02.8 -11 31 44           ~ 4 0
33 LEDA 3097712 G 12 41 18.7 -11 55 31           ~ 17 0
34 MCG-02-32-026 EmG 12 42 48.9159309240 -12 23 26.755892340   15   13.30   ~ 24 0
35 UGCA 295 AG? 12 44 53.924 -09 07 33.41   14.4   14.2 14.5 ~ 23 0
36 MCG-01-33-003 GiG 12 45 41.3496635640 -06 04 10.835842548   12.7   12.8 12.6 ~ 54 0
37 NGC 4674 EmG 12 46 03.472 -08 39 19.66   15   12.78   ~ 33 0
38 LEDA 1003283 Sy2 12 47 50.9375728800 -08 28 16.849688700   15.51   14.39   ~ 8 0
39 LEDA 104868 EmG 12 48 54.137 -11 40 42.49   15.04   14.20   ~ 17 0
40 NGC 4700 AGN 12 49 08.148 -11 24 35.48   12.7 14.32 12.7 12.5 ~ 107 0
41 MCG-02-33-015 LSB 12 49 23.41 -10 07 11.6   12.3   12.5 12.4 ~ 52 0
42 LEDA 1019240 AG? 12 49 55.87 -07 25 27.4   15.42   14.69   ~ 10 0
43 NGC 4731 Sy2 12 51 01.095 -06 23 34.98   12.0   16.23 12.0 ~ 197 0
44 NGC 4723 AG? 12 51 02.91 -13 14 11.8   14.6   14.8 15.0 ~ 29 0
45 NGC 4731A GiP 12 51 13.26 -06 33 33.9   14.5       ~ 28 0
46 NGC 4742 GiG 12 51 48.0416784480 -10 27 17.196625800   12   11.55   ~ 235 1
47 NGC 4757 GiG 12 52 50.1123513360 -10 18 36.312397272   15   13.78   ~ 22 0
48 MCG-02-33-047 GiG 12 53 56.5587 -12 06 19.455   14.0   14.2 14.1 ~ 59 0
49 NGC 4781 Sy2 12 54 23.7751070304 -10 32 13.803431280   11.8   11.28 11.7 ~ 167 1
50 NGC 4790 GiG 12 54 51.9413201400 -10 14 52.268425260   12   12.12   ~ 98 0
51 UGCA 308 AG? 12 55 31.5457 -10 23 30.774   17       ~ 11 0
52 NGC 4804 EmG 12 55 49.6669627200 -12 03 18.748939464   12   14.74   ~ 58 0
53 IC 3908 EmG 12 56 40.624 -07 33 46.08   13.5   12.19 12.6 ~ 97 0
54 NGC 4818 Sy2 12 56 48.907 -08 31 31.08   11   10.88   ~ 160 1
55 MCG-01-33-060 Sy2 12 57 46.827 -09 38 01.60   13.6   13.6 13.2 ~ 67 0
56 MCG-02-33-075 EmG 12 58 28.268 -10 34 37.19   13.9   13.14 13.6 ~ 31 0
57 UGCA 312 G 12 59 06.8 -12 13 40   15.0   15.1 15.1 ~ 20 0
58 NGC 4856 GiG 12 59 21.2433153888 -15 02 31.292291292   11   10.72   ~ 85 0
59 MCG-02-33-085 EmG 13 00 17.20 -12 20 47.6   13.7   13.31 13.7 ~ 35 0
60 LEDA 936912 AG? 13 01 06.9098 -13 31 08.921   15.7   15.5 15.3 ~ 12 0
61 NGC 4920 GiG 13 02 04.15 -11 22 42.3   14.0   14.0 13.7 ~ 33 0
62 NAME Virgo Extension GrG ~ ~           ~ 56 0
63 NAME Local Group GrG ~ ~           ~ 9325 0

To bookmark this query, right click on this link: simbad:objects in 2020A&A...643A.124K and select 'bookmark this link' or equivalent in the popup menu