2022ApJS..262...31L

Query : 2022ApJS..262...31L

2022ApJS..262...31L - Astrophys. J., Suppl. Ser., 262, 31 (2022/September-0)

ALMA/ACA CO Survey of the IC 1459 and NGC 4636 Groups: Environmental Effects on the Molecular Gas of Group Galaxies.

LEE B., WANG J., CHUNG A., HO L.C., WANG R., MICHIYAMA T., MOLINA J., KIM Y., SHAO L., KILBORN V., WANG S., LIN X., KIM D.E., CATINELLA B., CORTESE L., DEG N., DENES H., ELAGALI A., FOR B.-Q., KLEINER D., KORIBALSKI B.S., LEE-WADDELL K., RHEE J., SPEKKENS K., WESTMEIER T., WONG O.I., BIGIEL F., BOSMA A., HOLWERDA B.W., VAN DER HULST J.M., ROYCHOWDHURY S., VERDES-MONTENEGRO L. and ZWAAN M.A.

Abstract (from CDS):

We present new results of a 12CO(J = 1-0) imaging survey using the Atacama Compact Array (ACA) for 31 H I detected galaxies in the IC 1459 and NGC 4636 groups. This is the first CO imaging survey for loose galaxy groups. We obtained well-resolved CO data (∼0.7-1.5 kpc) for a total of 16 galaxies in two environments. By comparing our ACA CO data with the H I and UV data, we probe the impacts of the group environment on the cold gas components (CO and H I gas) and star formation activity. We find that CO and/or H I morphologies are disturbed in our group members, some of which show highly asymmetric CO distributions (e.g., IC 5264, NGC 7421, and NGC 7418). In comparison with isolated galaxies in the xCOLD GASS sample, our group galaxies tend to have low star formation rates and low H2 gas fractions. Our findings suggest that the group environment can change the distribution of cold gas components, including the molecular gas and star formation properties of galaxies. This is supporting evidence that preprocessing in the group-like environment can play an important role in galaxy evolution.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Interstellar atomic gas - Molecular gas - Galaxies - Galaxy groups - Galaxy evolution

Simbad objects: 38

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Number of rows : 38
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 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
2 NGC 4496 GiP 12 31 39.2222392512 +03 56 21.641352828   11.71       ~ 376 0
3 NGC 4496B G 12 31 40.8948419472 +03 55 34.870562220   14.5       ~ 68 0
4 NGC 4517A H2G 12 32 27.94560 +00 23 26.2716   12.7   12.8 12.9 ~ 124 0
5 IC 3474 H2G 12 32 36.928 +02 39 49.57   15.0       ~ 86 0
6 NGC 4437 AGN 12 32 45.586 +00 06 54.14   11.1   11.1 10.6 ~ 307 0
7 LEDA 41647 AG? 12 32 57.624 +04 34 41.35   15.0       ~ 43 0
8 Z 42-154 GiG 12 33 55.2790220232 +03 32 50.540353440   15.3       ~ 41 0
9 NGC 4527 AGN 12 34 08.49600 +02 39 13.7160   12.4       ~ 549 2
10 NGC 4536 H2G 12 34 27.12887 +02 11 16.3680 11.14 11.16 10.55 17.393   ~ 913 3
11 Z 42-175 AG? 12 36 42.133 +03 06 32.35   16.5       ~ 53 0
12 Z 42-181 LSB 12 37 29.1657027192 +04 44 50.088637140   15.7       ~ 31 0
13 NGC 4592 EmG 12 39 18.7543040040 -00 31 55.529665824   12.4   12.3 12.1 ~ 159 0
14 Z 14-97 GiG 12 39 50.305 +01 40 21.50   15.5   14.710   ~ 53 0
15 Z 14-103 GiG 12 41 11.580 +01 24 35.99   14.9   14.3 13.9 ~ 43 0
16 NGC 4632 EmG 12 42 31.9886669016 -00 04 57.071456184   12.5   12.4 11.9 ~ 177 0
17 NAME NGC 4636 Group GrG 12 42 49.5 +02 41 08           ~ 570 0
18 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1156 1
19 Z 15-12 GiG 12 44 28.7701941216 +00 28 05.159668620   13.3   13.485 13.0 ~ 79 0
20 NGC 4666 AGN 12 45 08.676 -00 27 42.88   11.7   11.5 10.7 ~ 421 1
21 NGC 4668 EmG 12 45 31.941 -00 32 02.36   13.5   12.714   ~ 138 0
22 NGC 4688 GiP 12 47 46.5220541760 +04 20 09.766119156   14.5       ~ 182 1
23 Z 43-40 GiG 12 49 50.1988897848 +02 51 10.636698780   14.03       ~ 98 1
24 NGC 4772 LIN 12 53 29.1636448512 +02 10 06.146331708 12.29 11.96 11.04     ~ 265 1
25 Z 15-37 EmG 12 55 12.6507011952 +00 07 00.036186204   14.694   16.214 12.7 ~ 155 0
26 NGC 7418 Sy1 22 56 36.1156121952 -37 01 47.845242192   11.66 11.39 10.66 11.3 ~ 172 2
27 IC 5269B GiP 22 56 36.716 -36 14 58.94   13.46   12.36 12.8 ~ 90 0
28 NGC 7418a Sy1 22 56 41.2507536815 -36 46 21.677726835   13.85   14.0 14.0 ~ 75 1
29 IC 5264 Sy2 22 56 53.035 -36 33 14.91   13.46   12.02   ~ 79 1
30 NGC 7421 EmG 22 56 54.3533970816 -37 20 50.437978152 12.61 12.64 11.93 11.71 12.1 ~ 127 1
31 IC 1459 rG 22 57 10.60682195 -36 27 43.9966421   10.96 11.85 9.34 10.3 ~ 652 2
32 NAME IC 1459 Group GrG 22 57 16 -36 25.4           ~ 37 0
33 IC 5270 EmG 22 57 54.939 -35 51 28.93   13.00   11.85 12.5 ~ 117 1
34 IC 5273 EmG 22 59 26.719 -37 42 10.36   11.90 11.45 11.07 11.6 ~ 153 0
35 ESO 406-40 EmG 23 00 21.6180 -37 11 59.889   16.40   15.48 16.2 ~ 18 0
36 IC 5269C LSB 23 00 48.1616458728 -35 22 14.075942592   14.20   13.356 13.7 ~ 49 0
37 LEDA 199192 AG? 23 02 00.50 -36 29 01.9           ~ 7 0
38 ESO 406-42 EmG 23 02 14.332 -37 05 00.70   14.47 12.31 13.76 13.9 ~ 50 1

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