2004AJ....127.1336S

Query : 2004AJ....127.1336S

2004AJ....127.1336S - Astron. J., 127, 1336-1343 (2004/March-0)

Very isolated early-type galaxies.

STOCKE J.T., KEENEY B.A., LEWIS A.D., EPPS H.W. and SCHILD R.E.

Abstract (from CDS):

We use the Karachentseva Catalogue of Very Isolated Galaxies to investigate a candidate list of more than 100 very isolated early-type galaxies. Broadband imaging and low-resolution spectroscopy are available for a large fraction of these candidates and result in a sample of 102 very isolated early-type galaxies, including 65 elliptical (E) and 37 S0 galaxies. Many of these systems are quite luminous, and the resulting optical luminosity functions of the E and early-type (E+S0) galaxies show no statistical differences when compared to luminosity functions dominated by group and cluster galaxies. However, whereas S0 galaxies outnumber E galaxies 4:1 in the CfA survey, isolated E outnumber S0 galaxies by nearly 2:1. We conclude that very isolated elliptical galaxies show no evidence of a different formation and/or evolution process compared to those formed in groups or clusters, but that most S0 galaxies are formed by a mechanism (e.g., gas stripping) that occurs only in groups and rich clusters. Our luminosity function results for elliptical galaxies are consistent with very isolated elliptical galaxies being formed by merger events, in which no companions remain. Chandra observations were proposed specifically to test the merger hypothesis for isolated elliptical galaxies. However, this program has resulted in the observation of only one isolated early-type galaxy, the S0 KIG 284, which was not detected at a limit well below that expected for a remnant group of galaxies. Therefore, the hypothesis remains untested that very isolated elliptical galaxies are the remains of a compact group of galaxies that have completely merged.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Elliptical and Lenticular, cD - galaxies: individual (KIG 284) - Galaxies: Luminosity Function, Mass Function - X-rays: galaxies

Simbad objects: 107

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Number of rows : 107
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 IC 7 GiG 00 18 53.1736998528 +10 35 40.899687576   14.70       ~ 24 0
2 2MASX J00241616+1414121 GiG 00 24 16.1991236808 +14 14 12.682949460   15.40       ~ 30 0
3 NGC 137 GiG 00 30 58.0812788712 +10 12 30.206151972   14.20       ~ 42 0
4 IC 74 GiC 01 05 55.9655382096 +04 05 24.917236512   15.70       ~ 25 0
5 2MASX J01374827+0217272 Sy2 01 37 48.2619850224 +02 17 27.585175632   15.56 15.46     ~ 27 0
6 UGC 1503 GiG 02 01 19.8505530984 +33 19 47.384343372   14.40       ~ 54 0
7 NGC 821 AG? 02 08 21.1358498040 +10 59 41.832436704   12.210 11.310 10.739 9.744 ~ 572 0
8 UGC 1648 GiG 02 09 14.2195652232 +25 34 14.955817872   14.50       ~ 51 0
9 Z 438-38 G 02 11 27.3012794736 +11 50 09.363240600   15.70       ~ 22 0
10 2MASX J02222457+0550472 G 02 22 24.5405527968 +05 50 47.451232644   15.50       ~ 22 0
11 Z 414-8 AG? 02 25 17.4408337536 +04 26 36.615640704   15.20       ~ 25 0
12 IC 1819 AG? 02 35 41.8337584488 +04 03 06.571485180   15.00       ~ 27 0
13 Z 484-13 AG? 02 36 15.2506605936 +27 10 46.151049648   15.70       ~ 23 0
14 IC 1849 G 02 47 44.6377817472 +09 21 24.573804768   15.50       ~ 21 0
15 RXC J0252.8-0116 ClG 02 52 49.4 -01 16 27           ~ 102 0
16 NGC 1132 EmG 02 52 51.82 -01 16 29.0   13.9   12.16   ~ 167 0
17 MCG+00-09-088 G 03 29 34.5755778360 -01 32 27.918372804   15.7       ~ 17 0
18 NGC 1349 LIN 03 31 27.5125084008 +04 22 51.205128636   15.00       ~ 73 0
19 Z 327-16 AG? 04 13 02.949 +75 00 21.59   15.00       ~ 29 0
20 NGC 1553 GiP 04 16 10.4697802536 -55 46 48.072797400 10.76 10.10 9.40 8.74   ~ 377 2
21 2MASX J05550364+7442526 G 05 55 03.640 +74 42 52.64   15.50       ~ 20 0
22 2MASX J06534021+5458256 G 06 53 40.1912085504 +54 58 25.599161568   15.40       ~ 20 0
23 2MASX J07083937+6118189 G 07 08 39.3392604576 +61 18 18.668647620   15.30       ~ 16 0
24 Z 234-96 AG? 07 11 38.2056446112 +46 56 09.006064260   15.30   13.96   ~ 22 0
25 UGC 3844 AG? 07 26 35.3954457648 +43 17 46.791999240   14.30       ~ 41 0
26 2MASX J08065767+5554114 AGN 08 06 57.6477004800 +55 54 11.004408900   15.60       ~ 28 0
27 IC 502 AG? 08 22 03.6090287928 +08 45 09.372668256   15.40       ~ 29 0
28 2MASX J08302910+6901421 G 08 30 29.2026729984 +69 01 42.094182972   15.50       ~ 19 0
29 MCG+05-20-029 AGN 08 36 01.5124689048 +30 15 59.075781624   15.10       ~ 31 0
30 2MASX J08454060+0726283 EmG 08 45 40.5948717120 +07 26 28.364024832   15.40       ~ 25 0
31 NGC 2765 GiG 09 07 36.6392523384 +03 23 34.469642868   13.30       ~ 87 0
32 Z 152-78 AG? 09 53 09.5480269200 +27 37 18.291241164   15.70       ~ 22 0
33 Z 36-11 G 09 57 51.4214903784 +07 50 11.354575596   15.60       ~ 21 0
34 Mrk 25 AGN 10 03 51.9487763664 +59 26 10.665521556   14.96 14.42     ~ 133 0
35 NGC 3102 GiG 10 04 31.7648115648 +60 06 28.610881308   14.30       ~ 48 0
36 2MASX J10243576+0106357 SyG 10 24 35.7650335608 +01 06 35.304567012   15.30   14.484   ~ 33 0
37 Z 37-32 G 10 25 31.2157610328 +07 27 46.593845172   15.50       ~ 22 0
38 Mrk 143 EmG 10 26 53.2010864904 +62 20 11.422078404   15.60       ~ 27 0
39 Z 124-36 G 10 32 35.8375169160 +20 22 12.053057304   15.60       ~ 20 0
40 2MASX J10370271+6231313 AGN 10 37 02.7216436392 +62 31 31.614966156   15.50       ~ 24 0
41 2MASX J10400858+1912491 AGN 10 40 08.5904078472 +19 12 48.770847972   15.50       ~ 22 0
42 MCG+09-18-014 LIN 10 44 18.9671006640 +52 46 12.469887372   14.60       ~ 34 0
43 2MASX J10591991+7150403 G 10 59 19.9216455792 +71 50 40.510753404   15.60       ~ 15 0
44 MCG+03-29-049 QSO 11 26 55.0800654192 +18 49 57.381686148   15.20       ~ 37 0
45 Z 40-10 AG? 11 36 39.5740841712 +06 17 30.869523600   14.80       ~ 34 0
46 UGC 6777 LIN 11 48 38.0676877800 +32 38 26.960821872   15.50       ~ 37 0
47 UGC 6805 AG? 11 50 12.187 +42 04 29.82   14.20       ~ 60 0
48 2MASX J11513372+1611059 EmG 11 51 33.7668737040 +16 11 05.889070608   15.20       ~ 33 0
49 2MASX J12025206+2615102 GiC 12 02 52.1095153560 +26 15 10.051167492   15.50       ~ 29 0
50 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6645 0
51 NAME LOCAL SUPERCL SCG 12 31 +12.4           ~ 519 0
52 Mrk 1338 EmG 12 53 10.151 +25 16 42.13   15.50 15.14     ~ 51 1
53 2dFGRS TGN255Z232 LIN 12 54 01.8845997888 -01 30 30.014845380   15.50   14.691   ~ 27 0
54 Z 43-132 AG? 13 04 41.8901588592 +02 57 49.419267264   15.40       ~ 31 0
55 MCG+14-06-015 G 13 06 49.2674586120 +82 51 59.822304228   15.70       ~ 17 0
56 IC 862 GiC 13 16 15.3857218320 +20 02 51.618790464   15.20       ~ 31 0
57 2MASX J13231754-0209033 Sy2 13 23 17.5239188160 -02 09 03.848524488   15.70   14.739   ~ 24 0
58 MCG+10-19-080 EmG 13 30 31.7004356808 +58 20 32.466156936   15.70       ~ 28 0
59 Z 190-59 G 13 48 34.6643260200 +37 06 47.925226260   14.90       ~ 35 0
60 2MASX J13532371+2302553 LIN 13 53 23.6765418528 +23 02 55.295225844   15.70       ~ 22 0
61 2MASX J14104209+2157246 Sy2 14 10 42.0886283520 +21 57 24.485385636   15.70       ~ 25 0
62 Z 104-5 AG? 14 19 39.9350461152 +19 56 41.170913592   15.40       ~ 28 0
63 MCG+10-21-008 LIN 14 33 31.4726251080 +57 42 42.351328692   15.70       ~ 28 0
64 2MASX J14383830+5416407 EmG 14 38 38.266 +54 16 40.23   15.10       ~ 40 0
65 2MASX J15193013+6730165 G 15 19 30.1740074472 +67 30 16.466153328   15.10       ~ 22 0
66 UGC 9874 AG? 15 27 14.9547869112 +77 09 24.664600332   14.60       ~ 30 0
67 2MASX J15301518+5649556 LIN 15 30 15.2079184752 +56 49 56.011540692   15.70       ~ 25 0
68 2MASX J15362673+4751175 AGN 15 36 26.7824364936 +47 51 17.319997836   15.20       ~ 43 0
69 Z 222-49 G 15 44 39.7736771352 +38 25 31.267447608   15.60       ~ 22 0
70 Z 136-75 AG? 15 46 55.5329553360 +22 09 05.969600568   15.70       ~ 17 0
71 2MASX J15474443+3712178 LIN 15 47 44.4158797224 +37 12 18.024588864   15.20       ~ 36 0
72 MCG+02-41-010 G 16 08 32.7641082336 +09 36 24.197925888   14.90       ~ 28 0
73 IC 1211 AG? 16 16 51.9794910072 +53 00 21.703117284   13.80       ~ 58 0
74 Z 223-56 LIN 16 18 45.7973085192 +39 20 04.067555028   15.60       ~ 37 0
75 2MASX J16431359+7442250 G 16 43 13.5062660832 +74 42 25.420326516   15.10       ~ 19 0
76 UGC 10528 AG? 16 44 49.50 +22 31 16.6   13.50       ~ 37 0
77 2MASX J16464919+2254180 rG 16 46 49.1705101992 +22 54 18.542270736   15.60       ~ 29 0
78 2MASX J17115145+1850293 G 17 11 51.4178638848 +18 50 28.983239268   15.50       ~ 25 0
79 2MASX J17213065+4428008 G 17 21 30.6192172056 +44 28 00.401319480   15.50       ~ 20 0
80 2MASX J17302214+6719213 GiG 17 30 22.1315941632 +67 19 21.473524344   15.00       ~ 25 0
81 2MASX J17362628+1001147 GiG 17 36 26.2890121296 +10 01 14.763362160   15.50       ~ 22 0
82 2MASX J17383071+0941222 G 17 38 30.7466234616 +09 41 22.509731004   15.50       ~ 20 0
83 Z 112-20 AG? 17 39 49.4569520040 +19 47 53.056530672   15.30       ~ 21 0
84 Z 226-37 AG? 17 40 38.0377600968 +41 18 04.843341252   14.80       ~ 28 0
85 Z 367-24 AG? 17 41 37.8321783120 +83 07 59.350276776   15.30       ~ 17 0
86 2MASX J17434647+3434499 G 17 43 46.4886063000 +34 34 50.309516928   15.60       ~ 16 0
87 Z 199-17 AG? 17 45 53.8914011520 +37 16 48.876934440   15.70       ~ 12 0
88 2MASX J17504116+3956586 Bla 17 50 41.1255 +39 56 59.124   15.60       ~ 24 1
89 Z 112-62 AG? 17 51 14.9518787808 +15 49 11.257181112   15.40       ~ 23 0
90 NGC 6524 AG? 17 59 14.7243596232 +45 53 13.416675792   14.00       ~ 58 0
91 NGC 6566 AG? 18 07 00.6509979840 +52 15 36.671870232   15.50       ~ 22 0
92 2MASX J18583076+5836083 G 18 58 30.7229985672 +58 36 08.040661812   15.60       ~ 17 0
93 Z 373-11 Sy2 20 26 55.9 -02 16 39   15.20       ~ 47 0
94 2MASX J21013347+0137323 G 21 01 33.4535530392 +01 37 32.079737784   15.70       ~ 21 0
95 IC 1362 G 21 11 52.6300113432 +02 19 44.491334304   15.70       ~ 21 0
96 2MASX J21162478+1016236 LIN 21 16 24.7645087464 +10 16 24.100792500   15.50       ~ 37 0
97 2MASX J21312684+1548184 G 21 31 26.8672902072 +15 48 18.332145756   15.70       ~ 17 0
98 Z 402-4 AG? 21 33 48.8176320480 +07 26 12.873205500   15.60       ~ 17 0
99 2MASX J21345523+1426429 G 21 34 55.2658453608 +14 26 42.779404752   15.60       ~ 13 0
100 2MASX J21455466+1140420 EmG 21 45 54.6731552472 +11 40 41.853745956   15.70       ~ 24 0
101 2MASX J22412187+0944340 GiG 22 41 21.8654279928 +09 44 34.458606708   15.10       ~ 24 0
102 IC 5315 GiG 23 21 18.2640814968 +25 23 07.286307144   14.60       ~ 42 0
103 2MASX J23320722+1639256 G 23 32 07.2303399192 +16 39 25.302314664   15.60       ~ 19 0
104 2MASX J23360018+1347488 Sy2 23 36 00.1961917608 +13 47 49.124748804   15.70       ~ 31 0
105 NAME Barbon's Galaxy bCG 23 37 39.543 +30 07 45.93   15.50       ~ 63 0
106 NGC 7760 GiG 23 49 11.9559031272 +30 58 59.707472736   14.80       ~ 32 0
107 NGC 7785 AG? 23 55 19.0388560224 +05 54 56.735224164   13.00       ~ 175 0

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