2018MNRAS.473.3358S

Query : 2018MNRAS.473.3358S

2018MNRAS.473.3358S - Mon. Not. R. Astron. Soc., 473, 3358-3366 (2018)

H I debris in the IC 1459 galaxy group.

SAPONARA J., KORIBALSKI B.S., BENAGLIA P. and FERNANDEZ LOPEZ M.

Abstract (from CDS):

We present H I synthesis imaging of the giant elliptical galaxy IC 1459 and its surroundings with the Australia Telescope Compact Array. Our search for extended H I emission revealed a large complex of H I clouds near IC 1459, likely to be the debris from tidal interactions with neighbouring galaxies. The total H I mass (∼109 M☉) in the detected clouds spans 250 kpc from the north-east of the gas-rich spiral NGC 7418A to the south-east of IC 1459. The extent and mass of the H I debris, which shows rather irregular morphology and kinematics, are similar to those in other nearby groups. Together with H I clouds recently detected near two other IC 1459 group members, namely IC 5270 and NGC 7418, using phased-array feeds on the Australian Square Kilometre Array Pathfinder, the detected debris make up a significant fraction of the group's intergalactic medium.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: groups: individual: IC 1459 - galaxies: interactions - radio lines: galaxies

Nomenclature: Fig. 2, Table 4: [SKB2018] CN (Nos C1-C7).

Simbad objects: 30

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Number of rows : 30
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ICRF J001052.5-415310 AGN 00 10 52.51756175 -41 53 10.7788843   22.0       ~ 71 1
2 LEDA 282475 Sy2 07 31 10.2261783240 -68 55 58.300230396   16.58   15.29 15.4 ~ 24 0
3 NGC 2442 LIN 07 36 23.7700545576 -69 31 50.997856332 11.47 11.15 10.42 9.71 10.4 ~ 221 1
4 NGC 3263 Sy1 10 29 13.396 -44 07 22.52   11.46   10.23   ~ 55 1
5 NGC 4011 EmG 11 58 25.4191057608 +25 05 51.653244156   15.7       ~ 19 0
6 NGC 4026 GiP 11 59 25.0914676128 +50 57 41.951225700   12.17       ~ 268 0
7 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6643 0
8 NGC 5264 GiG 13 41 36.683 -29 54 47.25 13.86 12.96 12.39 12.14 15.83 ~ 152 1
9 NAME Ursa Major Cluster ClG 15 08.8 +67 07           ~ 410 0
10 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1225 1
11 ESO 406-23 AG? 22 55 55.74 -36 20 57.0   14.63   13.77 14.1 ~ 42 0
12 NGC 7418 Sy1 22 56 36.1156121952 -37 01 47.845242192   11.66 11.39 10.66 11.3 ~ 165 1
13 ESO 406-26 GiP 22 56 36.716 -36 14 58.94   13.46   12.36 12.8 ~ 86 0
14 ESO 406-27 Sy1 22 56 41.2507536815 -36 46 21.677726835   13.85   14.0 14.0 ~ 72 1
15 IC 5264 Sy2 22 56 53.035 -36 33 14.91   13.46   12.02   ~ 73 1
16 [SKB2018] C7 HI 22 56 54.0 -36 42 09           ~ 1 0
17 [SKB2018] C6 HI 22 57 04.0 -36 33 35           ~ 1 0
18 LEDA 3097926 G 22 57 07.6 -36 37 14           ~ 3 0
19 IC 1459 AGN 22 57 10.60682195 -36 27 43.9966421   10.96 11.85 9.34 10.3 ~ 624 2
20 2MASX J22571092-3640103 GiP 22 57 10.9339527072 -36 40 11.063855640   15.76       ~ 13 0
21 [SKB2018] C5 HI 22 57 13.0 -36 30 10           ~ 1 0
22 NAME IC 1459 Group GrG 22 57 16 -36 25.4           ~ 36 0
23 [SKB2018] C4 HI 22 57 17.0 -36 34 09           ~ 1 0
24 [SKB2018] C3 HI 22 57 27.0 -36 37 13           ~ 1 0
25 [SKB2018] C2 HI 22 57 42.0 -36 38 08           ~ 1 0
26 [SKB2018] C1 HI 22 57 44.0 -36 33 13           ~ 1 0
27 IC 5270 EmG 22 57 54.939 -35 51 28.93   13.00   11.85 12.5 ~ 113 0
28 QSO B2259-37 QSO 23 02 23.88821211 -37 18 06.8319752           ~ 41 1
29 NAME Grus GrG 23 18 -42.4           ~ 40 0
30 NAME NGC 3256 Group GrG ~ ~           ~ 10 0

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