2000A&A...353...92R


Query : 2000A&A...353...92R

2000A&A...353...92R - Astronomy and Astrophysics, volume 353, 92-96 (2000/1-1)

Interaction rate at z∼1.

RESHETNIKOV V.P.

Abstract (from CDS):

We found 25 galaxies with probable tidal tails in the Hubble Deep Fields North and South at z=0.5-1.5. General characteristics of the selected tidal features are very close to characteristics of tidal tails of local interacting galaxies. Using objects with z=0.5-1.0, we found that volume density of galaxies with tidal tails changes with z as (1+z)4±1. Therefore, we estimated the rate of close encounters between the galaxies of comparable mass leading to the formation of extended tidal structures. If this rate reflects the merger rate, our data support a steeply increasing merger rate at z∼1 and consistent with zero curvature universe.

Abstract Copyright:

Journal keyword(s): galaxies: interactions - galaxies: photometry - galaxies: peculiar - galaxies: structure

Simbad objects: 15

goto View the references in ADS

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 - 2022
#notes
1 NAME Hubble Deep Field reg 12 36 49.5 +62 12 58           ~ 1873 1
2 [CDD2000] HDFS J223246.30-603405.9 G 22 32 46.3073 -60 34 05.940 26.759 26.383 25.590   24.905 ~ 6 0
3 [EAD2001] HDFS J223247.58-603408.6 G 22 32 47.6329 -60 34 08.733 24.230 23.392 22.438 21.71 21.656 ~ 13 0
4 SB-WF 3477-3723 G 22 32 48.27 -60 32 07.5 27.449 27.222 27.188   26.373 ~ 3 0
5 [LFR2003] 456 G 22 32 50.97 -60 33 14.0 25.912 25.575 24.898   24.412 ~ 4 0
6 SB-WF 2782-3543 G 22 32 52.02 -60 32 14.9 25.133 24.761 24.305   23.455 ~ 4 0
7 [EAD2001] HDFS J223252.71-603207.3 G 22 32 52.6358 -60 32 07.293 23.967 23.464 22.675   22.181 ~ 14 0
8 EIS-DEEP HDFS-2 Ks 1 492 G 22 32 53.0627 -60 33 28.386 25.098 24.436 23.775 23.84 22.56 ~ 20 0
9 SB-WF 2536-2934 G 22 32 53.31 -60 32 39.3           ~ 2 0
10 EIS-DEEP HDFS-2 H 1 813 G 22 32 53.4440 -60 33 33.058 26.053 25.631 25.059   23.75 ~ 12 0
11 NAME HDF-S reg 22 32 56 -60 33.0           ~ 553 0
12 [LFR2003] 317 G 22 32 57.060 -60 33 23.03 24.315 23.929 23.565   22.79 ~ 9 0
13 SB-WF 1360-0405 G 22 32 59.560 -60 34 20.60   26.745 25.623   23.94 ~ 10 0
14 [EAD2001] HDFS J223301.77-603413.5 G 22 33 01.8573 -60 34 13.651 25.294 24.584 23.960 24.62 22.813 ~ 14 0
15 [CDD2000] HDFS J223303.87-603416.5 G 22 33 03.9976 -60 34 16.775 26.919 26.301 26.153   25.446 ~ 8 0

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2022.05.27-13:56:03

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