2005MNRAS.357..783T

Query : 2005MNRAS.357..783T

2005MNRAS.357..783T - Mon. Not. R. Astron. Soc., 357, 783-792 (2005/February-3)

The galaxy luminosity function from MR=-25 to MR=-9.

TRENTHAM N., SAMPSON L. and BANERJI M.

Abstract (from CDS):

Redshift surveys such as the Sloan Digital Sky Survey (SDSS) have given a very precise measurement of the galaxy luminosity function down to about MR=-17 (~MB=-16). Fainter absolute magnitudes cannot be probed because of the flux limit required for spectroscopy. Wide-field surveys of nearby groups using mosaic CCDs on large telescopes are able to reach much fainter absolute magnitudes, about MR=-10. These diffuse, spiral-rich groups are thought to be typical environments for galaxies, so their luminosity functions should be the same as the field luminosity function. The luminosity function of the groups at the bright end (MR < -17) is limited by Poisson statistics and is far less precise than that derived from redshift surveys. Here we combine the results of the SDSS and the surveys of nearby groups, and we supplement the results with studies of Local Group galaxies in order to determine the galaxy luminosity function over the entire range -25 < MR < -9. The average logarithmic slope of the field luminosity function between MR=-19 and MR=-9 is α=-1.26, although a single power law is a poor fit to the data over the entire magnitude range. We also determine the luminosity function of galaxy clusters and demonstrate that it is different from the field luminosity function at a high level of significance; there are many more dwarf galaxies in clusters than in the field, due to a rise in the cluster luminosity function of α∼-1.6 between MR=-17 and MR=-14.

Abstract Copyright: 2005 RAS

Journal keyword(s): galaxies: luminosity function, mass function

Simbad objects: 61

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Number of rows : 61
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 MCG-03-01-015 G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 782 2
2 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
3 NAME Cetus Dwarf Galaxy G 00 26 10.8 -11 03 14     13.2     ~ 257 0
4 NGC 147 GiG 00 33 12.120 +48 30 31.46   12.0 9.5     ~ 720 1
5 NAME Andromeda III G 00 35 33.8 +36 29 52     14.4     ~ 309 0
6 NGC 185 Sy2 00 38 57.9400026024 +48 20 15.035874648   9.10 9.2     ~ 840 1
7 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
8 NAME Andromeda VIII blu 00 42 06.0 +40 37 00           ~ 27 0
9 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
10 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
11 NAME Andromeda I G 00 45 39.8 +38 02 28   13.9 12.7     ~ 355 0
12 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
13 NAME Andromeda IX G 00 52 53.0 +43 11 45     16.3     ~ 176 1
14 NAME Sculptor Dwarf Galaxy G 01 00 09.4 -33 42 32   9.79 8.6 8.81   ~ 1498 4
15 NAME Pisces I G 01 03 55.0 +21 53 06   16.18 14.3     ~ 404 0
16 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1316 2
17 NAME Andromeda V G 01 10 17.1 +47 37 41     15.3     ~ 215 0
18 NAME Andromeda II G 01 16 29.8 +33 25 09     11.7     ~ 402 0
19 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
20 NAME Phoenix Dwarf Galaxy Sy1 01 51 06.3 -44 26 41   13.48 13.2 12.69   ~ 575 2
21 NAME NGC 1023 Group GrG 02 39 37.9 +39 20 51           ~ 81 0
22 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
23 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
24 NGC 1407 rG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 613 2
25 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
26 ESO 206-20A G 06 41 36.7 -50 57 58   22.14 11.0 19.47   ~ 1190 0
27 NAME CMa Dwarf Galaxy G 07 12.6 -27 40     -0.1     ~ 203 1
28 ACO 665 ClG 08 30 45.2 +65 52 55           ~ 457 0
29 ACO 868 ClG 09 45 28.1 -08 38 51           ~ 67 0
30 Z 153-10 G 09 59 26.46 +30 44 47.0 14.08 13.54 13.26 13.33   ~ 652 0
31 Z 36-12 H2G 10 00 00.8217342072 +05 20 09.533389560 12.77 12.25 11.89 11.71   ~ 569 0
32 NGC 3109 AG? 10 03 06.877 -26 09 34.46 11.10 10.42 10.04 9.91   ~ 825 2
33 NAME Antlia Dwarf Galaxy G 10 04 03.9 -27 20 01 16.73 15.69 15.17 15.00   ~ 221 1
34 Z 64-73 G 10 08 28.12 +12 18 23.4   11.3 10.0     ~ 1284 1
35 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
36 NAME Sextans dSph LSB 10 13 02.9 -01 36 53   12 10.4     ~ 921 0
37 ACO 963 ClG 10 17 03.4 +39 02 56           ~ 414 0
38 NAME M 96 Group GrG 10 46 45 +11 49.1           ~ 330 0
39 ACO 1146 ClG 11 01 20.6 -22 43 08           ~ 104 0
40 Z 126-111 G 11 13 28.13 +22 09 10.1   12.9 12.0     ~ 899 0
41 NAME Coma I Group GrG 12 22 19.4 +29 53 47           ~ 112 0
42 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
43 M 104 LIN 12 39 59.43185902 -11 37 22.9961800 9.51 9.55 8.00 8.05   ~ 1465 2
44 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
45 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
46 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
47 NAME Ursa Major Cluster ClG 15 08.8 +67 07           ~ 424 1
48 Z 318-18 G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1459 0
49 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
50 Z 300-12 G 17 20 14.335 +57 55 16.39   12.40 10.6     ~ 1428 1
51 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2
52 NAME Sgr dIG G 19 29 59.0 -17 40 41   15.5 13.6     ~ 323 1
53 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
54 MCG-02-53-003 G 20 46 51.7 -12 50 54 15.75 15.18 14.83 14.46   ~ 470 1
55 NAME Tuc Galaxy G 22 41 49.6 -64 25 10   15.7 15.2     ~ 324 0
56 NAME Pisces II G 22 58 31.0 +05 57 09     16.3     ~ 283 0
57 NAME Andromeda VII GiG 23 26 31.0 +50 40 33   13.6 11.8     ~ 222 1
58 Z 431-72 G 23 28 35.2 +14 44 35 13.85 13.16 12.52     ~ 499 1
59 NAME Peg dSph GiG 23 51 46.3 +24 34 57   14.5 13.2     ~ 250 2
60 NAME Local Group GrG ~ ~           ~ 9325 0
61 NAME Andromeda Stream St* ~ ~           ~ 77 1

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