2021ApJS..257...64K

Query : 2021ApJS..257...64K

2021ApJS..257...64K - Astrophys. J., Suppl. Ser., 257, 64-64 (2021/December-0)

Hard X-ray irradiation potentially drives negative AGN feedback by altering molecular gas properties.

KAWAMURO T., RICCI C., IZUMI T., IMANISHI M., BABA S., NGUYEN D.D. and ONISHI K.

Abstract (from CDS):

To investigate the role of active galactic nucleus (AGN) X-ray irradiation on the interstellar medium (ISM), we systematically analyzed Chandra and Atacama Large Millimeter/submillimeter Array CO (J = 2-1) data for 26 hard X-ray (>10 keV) selected AGNs at redshifts below 0.05. While Chandra unveils the distribution of X-ray-irradiated gas via Fe-Kα emission, the CO (J = 2-1) observations reveal that of cold molecular gas. At high resolutions <=1'', we derive Fe-Kα and CO (J = 2-1) maps for the nuclear 2'' region and for the external annular region of 2''-4'', where 2'' is ∼100-600 pc for most of our AGNs. First, focusing on the external regions, we find the Fe-Kα emission for six AGNs above 2σ. Their large equivalent widths (>=1 keV) suggest a fluorescent process as their origin. Moreover, by comparing the 6-7 keV/3-6 keV ratio, as a proxy of Fe-Kα, and CO (J = 2-1) images for three AGNs with the highest significant Fe-Kα detections, we find a possible spatial separation. These suggest the presence of X-ray-irradiated ISM and the change in the ISM properties. Next, examining the nuclear regions, we find that (1) the 20-50 keV luminosity increases with the CO (J = 2-1) luminosity; (2) the ratio of CO (J = 2-1)/HCN (J = 1-0) luminosities increases with 20-50 keV luminosity, suggesting a decrease in the dense gas fraction with X-ray luminosity; and (3) the Fe-Kα-to-X-ray continuum luminosity ratio decreases with the molecular gas mass. This may be explained by a negative AGN feedback scenario: the mass accretion rate increases with gas mass, and simultaneously, the AGN evaporates a portion of the gas, which possibly affects star formation.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): X-ray astronomy - AGN host galaxies - Interstellar medium - Molecular gas - Interstellar atomic gas - Astrophysical black holes - Galaxy evolution - Star formation - X-ray active galactic nuclei - X-ray observatories

Simbad objects: 60

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Number of rows : 60
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 NGC 424 Sy1 01 11 27.6385025496 -38 05 00.421096524   13.76 14.12 12.38 12.8 ~ 346 1
2 NGC 526 Sy2 01 23 54.3772245792 -35 03 55.710850788   14.76 14.60 13.46   ~ 354 2
3 NGC 612 Sy2 01 33 57.751 -36 29 35.80   13.90 13.15 12.33   ~ 252 0
4 NGC 788 Sy2 02 01 06.4628889816 -06 48 57.149808084   13.71 12.76 11.79   ~ 291 0
5 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
6 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
7 NGC 1097 LIN 02 46 19.059 -30 16 29.68 10.46 9.97 9.48 8.72 9.8 ~ 1448 3
8 NGC 1125 Sy2 02 51 40.44 -16 39 02.4   13.98 13.13 12.48   ~ 158 1
9 NGC 1365 Sy1 03 33 36.458 -36 08 26.37 10.48 10.08 9.63 8.79 9.7 ~ 1987 2
10 2MASS J04570832+4527499 CV* 04 57 08.3210977680 +45 27 50.007677220     17.5     ~ 20 0
11 NGC 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1529 0
12 IRAS 05189-2524 Sy2 05 21 01.3994605776 -25 21 45.321827832   15.47 14.75     ~ 545 0
13 NGC 2110 Sy2 05 52 11.3768668776 -07 27 22.507465392   14.77 13.51 11.86   ~ 712 1
14 MAXI J0556-332 LXB 05 56 46.32 -33 10 28.2           ~ 94 0
15 ESO 5-4 Sy2 06 05 41.721 -86 37 55.02   13.55   11.88 12.2 ~ 174 1
16 NGC 2273 Sy1 06 50 08.6691789600 +60 50 44.864645136   14.50 13.54     ~ 566 2
17 MCG-05-18-002 Sy2 07 16 31.2062162520 -29 19 28.882826364   13.28 13.52 11.61   ~ 288 4
18 V* V441 Pup HXB 07 28 53.5788273168 -26 06 28.897118208 11.27 12.29 11.83 11.53   O5Ve 91 0
19 ESO 5-9 G 07 29 55.3 -84 02 25   15.52   14.63   ~ 18 0
20 Z 31-36 Sy2 08 04 05.8608218112 +05 06 49.823376120   14.55 13.7     ~ 340 2
21 NGC 3081 Sy2 09 59 29.5437024336 -22 49 34.747341960   13.06 13.55 11.67 12.1 ~ 509 0
22 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
23 GRO J1008-571 HXB 10 09 46.9642314696 -58 17 35.603851848       14.63   B0e 269 0
24 NGC 3227 Sy1 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1807 2
25 NGC 3393 Sy2 10 48 23.4653152920 -25 09 43.487648784   13.10 13.95 11.67 12.2 ~ 471 1
26 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2270 1
27 NGC 4507 Sy2 12 35 36.6338976888 -39 54 33.710416272   12.95 13.54 11.70 12.4 ~ 532 1
28 M 58 Sy2 12 37 43.59747 +11 49 05.1240 10.80 10.48 9.66     ~ 1140 2
29 HD 110432 HXB 12 42 50.2663572384 -63 03 31.052981412 4.79 5.58 5.31     B0.5IVpe 334 0
30 NGC 4945 Sy2 13 05 27.279 -49 28 04.44   9.31 14.40 7.55   ~ 1582 2
31 MCG-07-27-032 Sy1 13 06 26.1214861728 -40 24 52.595604396   13.58 13.42 12.01   ~ 269 0
32 NGC 5033 Sy2 13 13 27.535 +36 35 37.14   11.01 12.03 9.73   ~ 909 1
33 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
34 4U 1323-62 LXB 13 26 37.0 -62 08 09           ~ 192 0
35 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
36 Z 103-14 Sy2 13 56 02.89833 +18 22 18.2982   14.8 14.22     ~ 413 2
37 NGC 5506 Bla 14 13 14.8761010056 -03 12 27.556909272   15.25 14.38     ~ 1173 1
38 NGC 5643 Sy2 14 32 40.778 -44 10 28.60   11.03 13.60 9.92 10.6 ~ 652 1
39 NGC 5728 Sy2 14 42 23.8918506576 -17 15 11.240783784   14.34 13.40     ~ 679 1
40 V* BR Cir HXB 15 20 40.8532547060 -57 10 00.206639033   21.4 21.4     B5-A0I 849 1
41 V* KZ TrA LXB 16 32 16.79 -67 27 39.3 17.40 18.60 18.5     ~ 626 1
42 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2
43 MAXI J1659-152 LXB 16 59 01.680 -15 15 28.73           ~ 274 0
44 [KRL2007b] 225 LXB 17 10 12.8 -28 07 52           ~ 104 0
45 V* AM Her CV* 18 16 13.2546725104 +49 52 04.759613537   15.124 14.808 13.525   M4.5-5Ve 1009 2
46 NGC 6652 GlC 18 35 45.63 -32 59 26.6           ~ 474 0
47 FRL 49 Sy2 18 36 58.2335883144 -59 24 08.282326320   11.1   14.19   ~ 270 1
48 NGC 6764 LIN 19 08 16.4036066688 +50 55 59.519979084   15.00 14.32     ~ 307 1
49 4U 1907+09 HXB 19 09 38.0514267264 +09 49 47.270139132   19.41 16.35 15.570 12.53 O9.5Iab 362 0
50 4U 1908+075 HXB 19 10 48.2133201408 +07 35 51.707133960           O7.5/9.5If 139 0
51 V* CH Cyg Sy* 19 24 33.0657463320 +50 14 29.095038672 8.14 8.77 7.08   5.345 M7IIIab+Be 798 0
52 KS 1947+300 HXB 19 49 35.4841147968 +30 12 31.775979852   15.16 14.22 13.53 12.88 B0Ve 194 0
53 NGC 6951 Sy2 20 37 14.1228088488 +66 06 20.049916392   11.64 10.65     ~ 553 2
54 IC 5063 Bla 20 52 02.15 -57 04 06.7   12.92 13.60 11.30   ~ 710 1
55 SAX J2103.5+4545 HXB 21 03 35.7100848936 +45 45 05.568751692   15.34 14.20 13.991 12.75 B0Ve 197 0
56 NGC 7130 Sy2 21 48 19.5412287192 -34 57 04.492024884   12.86 13.87 11.57   ~ 483 1
57 V* AO Psc CV* 22 55 17.9860863984 -03 10 39.981831564           ~ 327 0
58 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2253 3
59 NGC 7479 Sy2 23 04 56.6432243448 +12 19 22.357387020 11.74 11.60 10.85 10.47 9.66 ~ 783 2
60 NGC 7582 Sy2 23 18 23.60 -42 22 13.3 11.62 10.92 10.62     ~ 978 3

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