2008ApJ...682L..85K

Query : 2008ApJ...682L..85K

2008ApJ...682L..85K - Astrophys. J., 682, L85-L88 (2008/August-1)

A 500 kpc H I extension of the Virgo pair NGC 4532/DDO 137 detected by the Arecibo legacy fast ALFA (ALFALFA) survey.

KOOPMANN R.A., GIOVANELLI R., HAYNES M.P., KENT B.R., BALONEK T.J., BROSCH N., HIGDON J.L., SALZER J.J. and SPECTOR O.

Abstract (from CDS):

We report the discovery of a ∼500 kpc H I extension southwest of the Virgo Cluster H I-rich pair NGC 4532/DDO 137, detected as part of the Arecibo Legacy Fast ALFA (ALFALFA) Survey. The feature is the longest and most massive H I tail structure so far found in the Virgo Cluster and, at 1.8 Mpc from M87, the most distant from the main concentration of the intracluster medium. The structure is spatially and spectrally separated into two ridges and is defined by diffuse emission and discrete clumps of mass (2.5-6.8)x107 M☉. All emission is blueshifted with respect to the NGC 4532/DDO 137 pair emission. Including diffuse emission, the structure has a total mass of up to 7x108 M☉, equivalent to ∼10% of the system's H I mass. Optical R-band imaging finds no counterparts to a level of 26.5 mag/arcsec2. The characteristics of the structure appear most consistent with a tidal origin.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Clusters: General - Galaxies: Clusters: Individual: Name: Virgo - Galaxies: Evolution - Galaxies: Interactions - Galaxies: Spiral - Galaxies: Structure

Nomenclature: Table 1, Fig.1: [KGH2008] W Clump N=1, [KGH2008] N (Nos 1-8).

Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.

Simbad objects: 23

goto Full paper

goto View the references in ADS

Number of rows : 23
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 [KGH2007] 6 G 12 17 51 +14 46.5           ~ 56 0
2 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 1004 2
3 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1433 2
4 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2174 2
5 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
6 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
7 [KGH2008] 1 HI 12 32 18.6 +05 52 51           ~ 1 0
8 [KGH2008] 2 HI 12 32 39.8 +06 01 17           ~ 1 0
9 [KGH2008] 3 HI 12 33 05.3 +05 51 00           ~ 1 0
10 [KGH2008] 4 HI 12 33 05.7 +05 26 00           ~ 1 0
11 [KGH2008] 5 HI 12 33 13.4 +05 02 04           ~ 1 0
12 [KGH2008] 6 HI 12 33 31.2 +06 09 30           ~ 1 0
13 SDSS J123333.22+060259.1 G 12 33 33.224 +06 02 59.16           ~ 8 0
14 AGC 227904 G 12 33 36.9 +06 26 43           ~ 5 0
15 NAME Vir B Cluster GrG 12 33 39.3 +10 10 57           ~ 143 0
16 NGC 4532 H2G 12 34 19.329 +06 28 03.73   12.3       ~ 304 2
17 NAME NGC 4532-DDO 137 Pair Complex PaG 12 34 20.2 +06 27 51           ~ 3 0
18 Z 42-163 GiP 12 34 44.934 +06 17 59.58   15.3       ~ 116 1
19 [KGH2008] 8 HI 12 35 20.2 +05 02 00           ~ 1 0
20 LEDA 3395075 EmG 12 35 24.4326065448 +05 02 53.834405892           ~ 18 1
21 ACO 3526 ClG 12 48 49.2 -41 18 17           ~ 1154 2
22 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
23 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3

To bookmark this query, right click on this link: simbad:objects in 2008ApJ...682L..85K and select 'bookmark this link' or equivalent in the popup menu