2011MNRAS.412.1881K

Query : 2011MNRAS.412.1881K

2011MNRAS.412.1881K - Mon. Not. R. Astron. Soc., 412, 1881-1894 (2011/April-2)

A wide-field survey of satellite galaxies around the spiral galaxy M106.

KIM E., KIM M., HWANG N., LEE M.G., CHUN M.-Y. and ANN H.B.

Abstract (from CDS):

We present a wide-field survey of satellite galaxies in M106 (NGC 4258) covering a {img}{x} 2° field around M106 using Canada-France-Hawaii Telescope/MegaCam. We find 16 satellite galaxy candidates of M106. Eight of these galaxies are found to be dwarf galaxies that are much smaller and fainter than the remaining galaxies. Three of these galaxies are new findings. Surface brightness profiles of 15 out of 16 satellite galaxies can be represented well by an exponential disc profile with varying scalelength. We derive the surface number density distribution of these satellite galaxies. The central number density profile (d < 100 kpc) is well fitted by a power law with a power index of -2.1±0.5, similar to the expected power index of isothermal distribution. The luminosity function of these satellites is represented well by the Schechter function with a faint-end slope of -1.19+0.03–0.06. Integrated photometric properties (total luminosity, total colour and disc scalelength) and the spatial distribution of these satellite galaxies are found to be roughly similar to those of the Milky Way and M31.

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): galaxies: dwarf - galaxies: individual: M106 - galaxies: photometry

Nomenclature: Fig. 1, Table 3: [KKH2011] SNN (Nos S1-S16), [KKH2011] PN (Nos P1-P5).

Simbad objects: 39

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Number of rows : 39
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 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
2 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
3 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
4 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
6 NAME M 81-82 Group GrG 09 55 +69.1           ~ 758 0
7 M 81 Sy2 09 55 33.1726556496 +69 03 55.062505368   7.89 6.94     ~ 4725 3
8 Z 153-10 G 09 59 26.46 +30 44 47.0 14.08 13.54 13.26 13.33   ~ 652 0
9 NAME Segue 1 G 10 07 03.2 +16 04 25     15.3     ~ 517 1
10 NAME Willman 1 G 10 49 21.0 +51 03 00     15.2     ~ 345 0
11 Z 126-111 G 11 13 28.13 +22 09 10.1   12.9 12.0     ~ 899 0
12 SDSS J121404.95+472610.0 G 12 14 04.953 +47 26 10.01           ~ 3 0
13 NGC 4218 GiP 12 15 46.1787155088 +48 07 52.628679084   13.2       ~ 96 0
14 NGC 4217 GiG 12 15 50.900 +47 05 30.44   12.4       ~ 324 2
15 NGC 4220 G 12 16 11.7271475400 +47 53 00.116701188   12.4       ~ 166 0
16 SDSS J121637.46+470907.1 G 12 16 37.468 +47 09 07.15           ~ 3 0
17 SDSS J121702.37+465420.0 G 12 17 02.377 +46 54 20.04           ~ 3 0
18 SDSS J121706.39+465407.9 G 12 17 06.394 +46 54 07.93           ~ 3 0
19 LEDA 2308426 AG? 12 17 31.959 +47 59 42.05           ~ 10 0
20 NGC 4248 GiG 12 17 49.8429850848 +47 24 33.085192824   13.12 12.53     ~ 129 1
21 SDSS J121806.49+462850.2 G 12 18 06.493 +46 28 50.28           ~ 3 0
22 LEDA 4320422 LSB 12 18 11.07 +46 55 00.7           ~ 26 1
23 SDSS J121818.47+474809.3 G 12 18 18.478 +47 48 09.33           ~ 3 0
24 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
25 SDSS J121906.49+474348.8 LSB 12 19 06.493 +47 43 48.87     17.5   17.2 ~ 20 0
26 MCG+08-22-105 LSB 12 19 09.0802283352 +47 05 23.244084960   17       ~ 62 0
27 LEDA 166129 AG? 12 19 33.188 +47 27 05.50           ~ 19 0
28 SDSS J121936.00+470535.2 LSB 12 19 36.013 +47 05 35.36     18.2   17.7 ~ 10 0
29 MCG+08-23-003 AG? 12 20 17.493 +48 08 15.66   16.5       ~ 26 0
30 [CGB2020] dw1220+4729 G 12 20 30.1 +47 29 25           ~ 7 0
31 LEDA 166131 LSB 12 20 40.018 +47 00 04.20     16.7   16.3 ~ 17 0
32 MCG+08-23-008 LSB 12 20 48.421 +47 49 33.32   16.5       ~ 25 0
33 SDSS J122054.98+464950.4 G 12 20 54.987 +46 49 50.41           ~ 10 0
34 NGC 4346 GiG 12 23 27.9622537560 +46 59 37.642074396   12.3       ~ 122 0
35 LEDA 2832112 G 12 23 46.2 +47 39 32           ~ 14 0
36 NAME CVn II Group GrG 12 26 +44.2           ~ 23 0
37 NAME Bootes II G 13 58 00.0 +12 51 00     15.4     ~ 269 0
38 NGC 6622 GiP 18 13 00.21 +68 21 12.4   16       ~ 40 0
39 NAME Local Group GrG ~ ~           ~ 9325 0

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