2010MNRAS.407L..64R

Query : 2010MNRAS.407L..64R

2010MNRAS.407L..64R - Mon. Not. R. Astron. Soc., 407, L64-L68 (2010/September-1)

The curious case of J113924.74+164144.0: a possible new group of galaxies at z = 0.069.

ROY N., SENGUPTA C. and KANTHARIA N.G.

Abstract (from CDS):

J113924.74+164144.0 is an interesting galaxy at z = 0.0693, i.e. DL ∼ 305Mpc, with tidal-tail-like extended optical features on both sides. There are two neighbouring galaxies, a spiral galaxy J113922.85+164136.3 which has a strikingly similar `tidal' morphology and a faint galaxy J113923.58+164129.9. We report HI 21-cm observations of this field to search for signatures of possible interaction. Narrow HI emission is detected from J113924.74+164144.0, but J113922.85+164136.3 shows no detectable emission. The total HI mass detected in J113924.74+164144.0 is 7.7x109M☉. The HI emission from the galaxy is found to be extended and significantly offset from the optical position of the galaxy. We interpret this as signature of possible interaction with the neighbouring spiral galaxy. There is also a possible detection of HI emission from another nearby galaxy J113952.31+164531.8 at z = 0.0680 at a projected distance of 600kpc, and with a total HI mass of 5.3x109M☉, suggesting that all these galaxies form a loose group at z ∼ 0.069.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): galaxies: general - galaxies: groups: general - galaxies: interactions - radio lines: galaxies

Simbad objects: 15

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Number of rows : 15
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 ACO 370 ClG 02 39 50.5 -01 35 08           ~ 825 0
2 ACO 3128 ClG 03 29 50.6 -52 34 48           ~ 183 3
3 ICRF J054236.1+495107 Sy1 05 42 36.13789710 +49 51 07.2337139   18.45 17.80 17.210   ~ 1573 1
4 ACO 963 ClG 10 17 03.4 +39 02 56           ~ 414 0
5 SDSS J113922.85+164136.3 G 11 39 22.849 +16 41 36.36           ~ 1 1
6 SDSS J113923.58+164129.9 G 11 39 23.584 +16 41 29.98           ~ 1 1
7 SDSS J113923.94+164139.5 G 11 39 23.957 +16 41 39.48           ~ 1 1
8 LEDA 1514790 G 11 39 24.748 +16 41 44.06           ~ 6 1
9 SDSS J113925.00+164147.8 G 11 39 25.001 +16 41 47.83           ~ 1 1
10 SDSS J113925.55+164142.5 G 11 39 25.555 +16 41 42.59           ~ 1 1
11 SDSS J113952.02+164514.8 G 11 39 52.020 +16 45 14.83           ~ 1 1
12 LEDA 1516304 G 11 39 52.31912 +16 45 31.8978           ~ 5 1
13 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
14 ACO 2192 ClG 16 27 24.4 +42 40 43           ~ 65 0
15 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 827 1

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