2007ApJ...665L..15K

Query : 2007ApJ...665L..15K

2007ApJ...665L..15K - Astrophys. J., 665, L15-L18 (2007/August-2)

Optically unseen H I detections toward the Virgo cluster detected in the Arecibo legacy fast ALFA survey.

KENT B.R., GIOVANELLI R., HAYNES M.P., SAINTONGE A., STIERWALT S., BALONEK T., BROSCH N., CATINELLA B., KOOPMANN R.A., MOMJIAN E. and SPEKKENS K.

Abstract (from CDS):

We report the discovery by the Arecibo Legacy Fast ALFA (ALFALFA) survey of eight H I features not coincident with stellar counterparts in the Virgo Cluster region. All of the H I clouds have cz<3000 km/s and, if at the Virgo distance, H I masses between 1.9x107 and 1.1x109 M☉. Four of the eight objects were reported or hinted at by previous studies and ``rediscovered'' by ALFALFA. While some clouds appear to be associated with optical galaxies in their vicinity, others show no clear association with a stellar counterpart. Two of them are embedded in relatively dense regions of the cluster and are associated with M49 and M86; they were previously known. The others are mostly located in peripheral regions of the cluster. Especially notable are a concentration of objects toward the so-called M cloud, 3°-5° to the northwest of M87, and a complex of several clouds projected roughly halfway between M87 and M49. The object referred to as VIRGOHI 21 and proposed to be a ``dark galaxy'' is also detected and shown to be a tidal feature associated with NGC 4254.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Clusters: General - galaxies: clusters: individual (Virgo Cluster) - Galaxies: Halos - Galaxies: Interactions - Galaxies: Intergalactic Medium - Radio Lines: Galaxies

Nomenclature: Table 1: [KGH2007] Na (Nos 1-8, 6a-6c, 7a-7e, 8a-8c).

Simbad objects: 40

goto Full paper

goto View the references in ADS

Number of rows : 40
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 UGC 7003 GiC 12 01 21.457 +14 26 59.08   16       ~ 29 0
2 [KGH2007] 1 HI 12 02 44.4 +14 04 56           ~ 1 0
3 UGC 7038 LSB 12 03 50.532 +14 33 00.36   17       ~ 23 0
4 AGC 225880 G 12 08 45.6 +11 55 34           ~ 7 0
5 IC 3028 GiG 12 10 35.7587243880 +11 45 38.948516172   14.9       ~ 69 0
6 NAME NGC 4168 Group GrG 12 12.0 +13 24           ~ 64 0
7 LEDA 39012 LSB 12 13 35.84 +13 02 04.4   18.06       ~ 17 0
8 AGC 225998 G 12 13 41.8 +12 53 51           ~ 9 0
9 AGC 226054 G 12 17 33.8 +14 23 47           ~ 7 0
10 AGC 226055 G 12 17 49.1 +15 04 52           ~ 6 0
11 [KGH2007] 6 G 12 17 51 +14 46.5           ~ 51 0
12 AGC 226056 G 12 17 55.5 +14 44 45           ~ 6 0
13 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 922 2
14 [KGH2007] 4 HI 12 21 26 +14 24.7           ~ 7 0
15 NAME Virgo Cloud W' GrG 12 24.0 +07 12           ~ 24 0
16 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1342 2
17 M 86 GiG 12 26 11.814 +12 56 45.49 10.32 9.83 8.90   7.50 ~ 1084 1
18 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6653 0
19 NGC 4424 H2G 12 27 11.5741235616 +09 25 14.330453700   13.1       ~ 360 0
20 NAME HI 1225+01 HI 12 27 19 +01 30.4           ~ 83 1
21 AGC 226159 G 12 29 42.8 +09 41 54           ~ 10 0
22 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2096 2
23 AGC 227874 G 12 29 54 +07 58.0           ~ 16 0
24 NAME ALFALFA Virgo 7 Complex HI 12 30.0 +09 20           ~ 5 0
25 UGC 7636 LSB 12 30 00.350 +07 55 47.44   15.4       ~ 134 0
26 AGC 226160 G 12 30 19.4 +09 35 18           ~ 10 0
27 AGC 226161 G 12 30 25.8 +09 28 01           ~ 10 0
28 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7208 3
29 VCCA 97 HI 12 31 19.0 +09 27 49           ~ 6 0
30 AGC 226163 G 12 31 26.7 +09 18 52           ~ 10 0
31 [KGH2007] 8 HI 12 55.0 +08 02           ~ 1 0
32 NAME NGC 4795-NGC 4796 Group GrG 12 55.0 +08 04           ~ 3 0
33 NGC 4795 GiP 12 55 02.8560769560 +08 03 55.922264208   13.5       ~ 100 0
34 AGC 227927 G 12 55 04.3 +08 06 13           ~ 6 0
35 NGC 4796 GiP 12 55 04.68 +08 03 58.4   14.50       ~ 17 1
36 UGC 8042 GiP 12 55 10.170 +07 55 05.52   15.5       ~ 43 0
37 AGC 227905 G 12 55 10.2 +08 02 44           ~ 5 0
38 AGC 227906 G 12 55 13.7 +08 02 51           ~ 5 0
39 UGC 8045 GiP 12 55 23.632 +07 54 33.51   15.3       ~ 48 0
40 NAME NGC 4019 Group GrG ~ ~           ~ 1 0

To bookmark this query, right click on this link: simbad:objects in 2007ApJ...665L..15K and select 'bookmark this link' or equivalent in the popup menu