2005A&A...429L..51K

Query : 2005A&A...429L..51K

2005A&A...429L..51K - Astronomy and Astrophysics, volume 429L51-54 (2005/1-3)

The strange case of a sub-DLA with very little HI.

KANEKAR N. and CHENGALUR J.N.

Abstract (from CDS):

We report a deep search for HI 21cm emission from the z= 0.00632 sub-DLA toward PG1216+069 with the Giant Metrewave Radio Telescope. No emission was detected and our 5σ upper limit on the mass of any associated galaxy is MHI≲107M☉, nearly 3 orders of magnitude less than MHI*. The z∼0.006 absorber is thus the most extreme known deviation from the standard paradigm in which high column density quasar absorption lines arise in the disks of gas-rich galaxies.

Abstract Copyright: ∼

Journal keyword(s): galaxies: evolution - galaxies: formation - galaxies: ISM - cosmology: observations - radio lines: galaxies

Nomenclature: [KC2005] QSO J1219+0638 abs N.NNNNN N=1.

Simbad objects: 10

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Number of rows : 10
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 SBSG 0335-052 AGN 03 37 44.06 -05 02 40.2     16.65     ~ 500 1
3 ICRF J054236.1+495107 Sy1 05 42 36.13789710 +49 51 07.2337139   18.45 17.80 17.210   ~ 1573 1
4 Mrk 116 AGN 09 34 02.1 +55 14 25           ~ 1179 1
5 2dFGRS TGN311Z206 Sy1 11 52 47.5102092912 -00 40 07.665791232   18   17.188   ~ 46 0
6 Z 42-1 EmG 12 18 38.668 +06 42 29.59   15.5       ~ 59 0
7 PG 1216+069 Sy1 12 19 20.9318278680 +06 38 38.467059252   15.68 15.65     ~ 302 0
8 NGC 4260 GiP 12 19 22.2401274336 +06 05 55.291593192   13.1       ~ 174 0
9 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
10 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2

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