2022ApJ...934..114Y

Query : 2022ApJ...934..114Y

2022ApJ...934..114Y - Astrophys. J., 934, 114 (2022/August-1)

On the H I Content of MaNGA Major Merger Pairs.

YU Q., FANG T., FENG S., ZHANG B., XU C.K., WANG Y. and HAO L.

Abstract (from CDS):

The role of H I content in galaxy interactions is still under debate. To study the H I content of galaxy pairs at different merging stages, we compile a sample of 66 major-merger galaxy pairs and 433 control galaxies from the Sloan Digital Sky Survey IV (SDSS-IV) MaNGA IFU survey. In this study, we adopt kinematic asymmetry as a new effective indicator to describe the merging stage of galaxy pairs. With archival data from the HI-MaNGA survey and new observations from the Five-hundred-meter Aperture Spherical radio Telescope (FAST), we investigate the differences in H I gas fraction (f_H I_), star formation rate (SFR), and H I star formation efficiency (SFE_H I_) between the pair and control samples. Our results suggest that the H I gas fraction of major-merger pairs on average is marginally decreased by ∼15% relative to isolated galaxies, implying mild H I depletion during galaxy interactions. Compared to isolated galaxies, pre-passage paired galaxies have similar f_H I_, SFR, and SFE_H I_, while pairs during the pericentric passage have weakly decreased f_H I_ (-0.10 ± 0.05 dex), significantly enhanced SFR (0.42 ± 0.11 dex), and SFE_H I_ (0.48 ± 0.12 dex). When approaching the apocenter, paired galaxies show marginally decreased f_H I_ (-0.05 ± 0.04 dex), comparable SFR (0.04 ± 0.06 dex), and SFE_H I_ (0.08 ± 0.08 dex). We propose that the marginally detected H I depletion may originate from the gas consumption in fueling the enhanced H2 reservoir of galaxy pairs. In addition, new FAST observations also reveal a H I absorber (N_H I_ ∼ 4.7 × 1021 cm–2), which may suggest gas infalling and the triggering of active galactic nuclei activity.

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

Journal keyword(s): Galaxy interactions - Galaxy pairs - Galaxy mergers - Interstellar atomic gas - Star formation

Simbad objects: 68

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Number of rows : 68
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 LEDA 1881 EmG 00 30 52.124 +00 31 43.03   16.5       ~ 18 0
2 LEDA 1893 EmG 00 31 00.60327 +00 26 08.6755     16.5     ~ 22 0
3 LEDA 1161205 EmG 00 41 37.998 +00 15 27.45           ~ 24 0
4 LEDA 1159852 EmG 00 41 40.16532 +00 12 31.4907           ~ 20 0
5 LEDA 1132697 G 02 38 32.932 -00 52 02.88           ~ 15 0
6 PB 6903 Sy1 02 50 57.4600838928 +00 22 09.774105168   16.0       ~ 39 0
7 Z 390-52 EmG 03 18 02.7776291040 -00 32 20.339876724   15.7       ~ 42 0
8 Z 390-98 G 03 30 28.7693079312 +00 48 41.311595124   15.6       ~ 26 0
9 MCG-01-10-042 Sy2 03 50 55.0999878600 -07 03 38.285853084   15.5       ~ 20 0
10 SDSS J073753.68+475725.8 EmG 07 37 53.677 +47 57 25.99           ~ 13 0
11 Z 206-18 EmG 07 44 23.652 +40 20 37.57   15.7       ~ 26 0
12 MCG+07-16-014 LSB 07 44 38.7438929880 +40 21 58.944211344   16.0       ~ 45 1
13 Z 206-27 G 07 48 09.2707380216 +43 35 26.470226436   15.7       ~ 30 0
14 Z 87-41 G 07 48 52.0283997000 +17 21 22.585354272   15.4       ~ 28 0
15 SDSS J074909.95+462742.8 EmG 07 49 09.959 +46 27 42.81           ~ 14 0
16 IC 478 Sy2 07 53 41.5717180656 +26 29 33.681053328   15.2       ~ 29 0
17 LEDA 90803 EmG 07 54 20.376 +32 46 28.62           ~ 30 0
18 Z 236-12 G 07 54 45.51337 +46 13 13.0034   15.7 15.7     ~ 21 0
19 SDSS J075505.85+324343.1 EmG 07 55 05.85436 +32 43 43.1842           ~ 16 0
20 LEDA 79052 AG? 07 56 10.646 +33 14 42.19   18       ~ 20 0
21 SDSS J075715.70+474811.0 EmG 07 57 15.701 +47 48 11.01           ~ 12 0
22 IC 482 G 07 59 47.2814284944 +25 21 25.131971376   15.0       ~ 29 0
23 LEDA 2473017 G 08 09 38.664 +54 33 07.78           ~ 21 0
24 Z 119-10 G 08 12 15.4749065208 +26 12 09.238475124   16       ~ 29 0
25 LEDA 3446781 G 08 15 13.790 +27 24 31.63           ~ 19 0
26 SDSS J081613.70+250433.8 EmG 08 16 13.72737 +25 04 34.3351           ~ 10 0
27 IC 2373 EmG 08 26 48.992 +20 21 53.47   15.5       ~ 40 0
28 LEDA 4166442 G 08 28 11.635 +17 22 28.93           ~ 21 0
29 LEDA 23972 EmG 08 32 47.007 +22 34 35.63   16.22       ~ 21 0
30 Z 119-124 EmG 08 33 00.178 +26 00 50.58   15.5       ~ 43 0
31 LEDA 1833256 G 09 04 59.9699027016 +28 20 51.734442912           ~ 29 0
32 Z 90-75 SyG 09 06 58.4556627336 +17 57 49.627215252   15.6       ~ 15 0
33 SDSS J090856.35+273049.8 EmG 09 08 56.354 +27 30 49.77           ~ 24 1
34 SDSS J090904.34+281524.0 EmG 09 09 04.345 +28 15 24.03           ~ 20 0
35 Z 209-34 AGN 09 15 00.759 +42 01 27.88   15.4       ~ 47 0
36 LEDA 1809924 G 09 20 26.11392 +27 29 53.6710           ~ 18 0
37 LEDA 2330276 G 09 35 00.9707730816 +48 58 36.459208488           ~ 17 0
38 LEDA 82536 EmG 09 47 54.939 +45 28 06.51   16.5       ~ 21 0
39 SDSS J104004.95+052748.1 EmG 10 40 04.95468 +05 27 48.1239           ~ 10 0
40 LEDA 213774 EmG 11 01 47.426 +45 52 25.45           ~ 17 0
41 Z 126-52 G 11 26 59.7153892704 +21 08 29.996954232   15.7       ~ 33 0
42 LEDA 1668528 G 11 30 43.841 +22 21 48.74           ~ 19 0
43 LEDA 2425493 EmG 11 44 05.47377 +52 51 28.6731           ~ 10 0
44 Z 215-38 AGN 12 09 38.09819 +42 00 34.8318   15.5       ~ 27 0
45 LEDA 2223166 EmG 12 18 39.62146 +43 32 19.1329           ~ 20 0
46 Z 187-40 Sy2 12 23 46.5708634536 +36 09 10.018512072   15.5       ~ 28 0
47 UGC 8567 EmG 13 35 13.599 +27 37 48.53   16.5       ~ 33 0
48 LEDA 1778575 G 13 38 46.266 +26 29 55.60           ~ 19 0
49 IC 909 LIN 13 40 51.1596024720 +24 28 23.818760508   14.9       ~ 52 0
50 LEDA 91367 G 14 31 38.5452504984 +52 44 58.166319480   16.98       ~ 27 0
51 MCG+07-31-020 EmG 15 02 22.208 +41 55 18.20   16       ~ 27 0
52 LEDA 4005470 EmG 15 08 04.080 +42 49 08.47           ~ 20 0
53 LEDA 169758 EmG 15 11 42.767 +43 58 13.65           ~ 23 0
54 LEDA 1882622 G 15 34 04.89340 +29 54 24.5351           ~ 10 0
55 MCG+04-37-017 AGN 15 39 26.0501419848 +24 56 36.806882604   16.10       ~ 34 0
56 LEDA 4480462 EmG 15 51 28.662 +25 49 12.62           ~ 14 0
57 [VV2010c] J155858.9+275913 Sy2 15 58 58.08632 +27 59 14.6783           ~ 15 0
58 LEDA 1823172 Sy2 15 59 00.6274614312 +27 59 07.255523400           ~ 23 0
59 LEDA 1771639 G 16 01 51.4206712368 +26 19 09.988422312           ~ 16 0
60 LEDA 1907273 EmG 16 04 56.202 +30 31 32.75           ~ 18 0
61 LEDA 2311535 EmG 16 13 21.5774582544 +48 09 18.116894232           ~ 17 0
62 Z 167-61 AG? 16 15 37.7901796632 +31 19 16.727544552   15.7       ~ 51 0
63 Z 167-63 EmG 16 15 56.087 +31 24 24.44   15.2       ~ 35 0
64 Z 138-5 G 16 23 59.6228012256 +21 47 42.079095636           ~ 25 1
65 MCG+07-34-134 EmG 16 41 15.132 +39 17 24.28   16       ~ 34 0
66 LEDA 3441730 AGN 17 04 50.9549931696 +34 49 02.319157920           ~ 34 0
67 LEDA 2593565 EmG 17 27 54.966 +59 43 16.34           ~ 17 0
68 NVSS J213025-002830 rG 21 30 25.885 -00 28 27.45   16.62   15.30   ~ 29 0

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