2004ApJ...612..679L

Query : 2004ApJ...612..679L

2004ApJ...612..679L - Astrophys. J., 612, 679-689 (2004/September-2)

Probing the evolution of the galaxy interaction/merger rate using collisional ring galaxies.

LAVERY R.J., REMIJAN A., CHARMANDARIS V., HAYES R.D. and RING A.A.

Abstract (from CDS):

We present the results from our program to determine the evolution of the galaxy interaction/merger rate with redshift using the unique star-forming characteristics of collisional ring galaxies. We have identified 25 distant collisional ring galaxy candidates (CRGCs) in a total of 162 deep Hubble Space Telescope (HST) Wide Field Planetary Camera 2 images obtained from the HST archives. Based on measured and estimated redshifts, these 25 CRGCs all lie in the redshift interval of 0.1≤z≤1. Using the local collisional ring galaxy volume density and the new ``standard'' cosmology, we find that in order to account for the number of identified CRGCs in our surveyed fields, the galaxy interaction/merger rate, parameterized as (1+z)m, must increase steeply with redshift. We determine a minimum value of m=5.2±0.7, although m could be as high as 7 or 8. We can rule out a nonevolving (m=0) and weakly evolving (m=1-2) galaxy interaction/merger rate at greater than the 4 σ level of confidence.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Evolution - Galaxies: Formation - Galaxies: High-Redshift - Galaxies: Interactions - Galaxies: Peculiar - Galaxies: Statistics

Nomenclature: Table 1: CRGC NN (Nos 1-25).

CDS comments: 3C 295 122 is [DG92] 6-122 in Simbad.

Simbad objects: 29

goto Full paper

goto View the references in ADS

Number of rows : 29
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 MCG-06-02-022a EmG 00 37 41.1133192392 -33 42 58.515101748   19.26   18.52   ~ 314 1
2 CRGC 1 G 02 39 58.2 -01 36 59     22.98     ~ 1 0
3 CRGC 21 G 02 39 58.4 -01 36 34     22.65     ~ 1 0
4 CRGC 23 G 02 40 55.1 -08 22 43           ~ 1 0
5 CRGC 4 G 02 40 55.1 -08 22 17           ~ 1 0
6 CRGC 18 G 02 40 57.4 -08 23 25           ~ 1 0
7 CRGC 9 G 03 06 16.3 +17 20 28           ~ 1 0
8 ClG 0440+02 ClG 04 43 09.7 +02 10 19     17.03     ~ 129 0
9 [GSL98] A1 GiC 04 43 11.100 +02 10 10.19   22.9       ~ 7 0
10 CRGC 5 G 04 43 11.2 +02 10 12           ~ 1 0
11 CRGC 13 G 04 56 47.2 +03 52 32           ~ 1 0
12 CRGC 8 G 06 11 16.4 -48 48 29   23.67 23.45     ~ 1 0
13 [YT2003] 46 G 07 27 42.9072 +69 06 50.422     20.64   23.73 ~ 3 0
14 CRGC 7 G 07 50 46.8 +14 40 46     22.72     ~ 1 0
15 CRGC 10 G 10 07 58.8 +07 30 09           ~ 1 0
16 CRGC 15 G 10 47 53.3 -25 14 08           ~ 1 0
17 CRGC 19 G 12 30 19.0 +12 21 54     22.94     ~ 1 0
18 [TSB2006] 119 EmG 12 36 57.2136 +62 12 26.190 25.06 23.6276 24.01 22.36 22.4474 ~ 32 0
19 CRGC 25 G 12 50 02.1 +39 52 21           ~ 1 0
20 7C 125441.29+473632.00 SyG 12 56 57.485 +47 20 20.23   22.0       ~ 285 1
21 CRGC 16 G 13 15 22.3 +49 09 25           ~ 1 0
22 [DCL2021] 3C 295 a GiC 14 11 11.77 +52 12 00.5   22.19 23.593 20.01   ~ 8 0
23 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
24 CRGC 24 G 15 06 26.7 +01 43 11     23.81     ~ 1 0
25 CRGC 12 G 16 03 09.1 +42 46 03           ~ 1 0
26 CRGC 11 G 17 09 59.8 +10 32 02     23.53     ~ 1 0
27 CRGC 14 G 18 07 01.4 +45 44 12     23.34     ~ 1 0
28 CRGC 22 G 19 38 09.0 -46 20 48     23.59     ~ 1 0
29 CRGC 6 LeI 21 40 14.0 -23 40 17           ~ 2 0

To bookmark this query, right click on this link: simbad:objects in 2004ApJ...612..679L and select 'bookmark this link' or equivalent in the popup menu