2013ApJ...775..116R

Query : 2013ApJ...775..116R

2013ApJ...775..116R - Astrophys. J., 775, 116 (2013/October-1)

Dwarf galaxies with optical signatures of active massive black holes.

REINES A.E., GREENE J.E. and GEHA M.

Abstract (from CDS):

We present a sample of 151 dwarf galaxies (108.5 ≲ M{sstarf} ≲ 109.5 M☉) that exhibit optical spectroscopic signatures of accreting massive black holes (BHs), increasing the number of known active galaxies in this stellar-mass range by more than an order of magnitude. Utilizing data from the Sloan Digital Sky Survey Data Release 8 and stellar masses from the NASA-Sloan Atlas, we have systematically searched for active BHs in ∼25,000 emission-line galaxies with stellar masses comparable to the Magellanic Clouds and redshifts z < 0.055. Using the narrow-line [O III]/Hβ versus [N II]/Hα diagnostic diagram, we find photoionization signatures of BH accretion in 136 galaxies, a small fraction of which also exhibit broad Hα emission. For these broad-line active galactic nucleus (AGN) candidates, we estimate BH masses using standard virial techniques and find a range of 105 ≲ MBH ≲ 106 M☉ and a median of MBH∼ 2x105 M☉. We also detect broad Hα in 15 galaxies that have narrow-line ratios consistent with star-forming galaxies. Follow-up observations are required to determine if these are true type 1 AGN or if the broad Hα is from stellar processes. The median absolute magnitude of the host galaxies in our active sample is Mg= -18.1 mag, which is ∼1-2 mag fainter than previous samples of AGN hosts with low-mass BHs. This work constrains the smallest galaxies that can form a massive BH, with implications for BH feedback in low-mass galaxies and the origin of the first supermassive BH seeds.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: dwarf - galaxies: nuclei - galaxies: Seyfert

VizieR on-line data: <Available at CDS (J/ApJ/775/116): table1.dat table2.dat>

Nomenclature: Tables 1-2: [RGG2013] NNN (Nos 1-136).

Simbad objects: 174

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Number of rows : 174
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 2MASX J00214584+0033275 Sy2 00 21 45.8129745000 +00 33 27.250449336   19.30 18.69     ~ 14 0
2 M 110 GiG 00 40 22.0572349992 +41 41 07.507220136   8.92 8.07     ~ 1370 1
3 SDSS J004042.10-110957.7 Sy1 00 40 42.1017013776 -11 09 57.756909240           ~ 16 0
4 M 32 GiG 00 42 41.82480 +40 51 54.6120 9.51 9.03 8.08     ~ 2236 2
5 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
6 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
7 SDSS J010005.94-011058.9 H2G 01 00 05.9374675056 -01 10 58.957211820           ~ 11 0
8 NGC 404 LIN 01 09 27.02 +35 43 05.3   12.56 11.73     ~ 511 0
9 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
10 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
11 SDSS J024635.03+000719.1 G 02 46 35.04102 +00 07 19.1696           ~ 4 0
12 SDSS J024656.39-003304.8 AGN 02 46 56.39533 -00 33 04.8877           ~ 13 0
13 LEDA 1143551 AGN 02 48 25.26414 -00 25 41.4175           ~ 7 0
14 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
15 2MASX J03064465-0024320 Sy1 03 06 44.606 -00 24 31.68     18.99     ~ 12 0
16 2MASS J03222465+4011199 AGN 03 22 24.6406853112 +40 11 19.869291852           ~ 8 0
17 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
18 SDSS J074829.22+510052.1 AG? 07 48 29.220 +51 00 52.17           ~ 5 0
19 LEDA 1629434 G 08 02 28.8456719616 +20 30 50.253349860           ~ 18 0
20 SDSS J081010.69+073337.1 G 08 10 10.6914646272 +07 33 37.093764816           ~ 3 0
21 2MASS J08114530+2328254 AGN 08 11 45.2993484072 +23 28 25.703424588           ~ 21 0
22 SDSS J081353.45+310824.3 G 08 13 53.4594742704 +31 08 24.379203084           ~ 2 0
23 SDSS J081549.08+254701.4 G 08 15 49.0847221872 +25 47 01.441389120           ~ 5 0
24 LEDA 1902931 AGN 08 20 13.9202420280 +30 25 03.083668860           ~ 9 0
25 [RGG2013] 5 AGN 08 23 34.8382249152 +03 13 15.797937216           ~ 9 0
26 SDSS J082449.94+293644.1 G 08 24 49.9667856024 +29 36 44.328390084           ~ 9 0
27 MCG-04-21-005 AGN 08 36 15.190 -26 24 33.66 12.04 11.93 11.45 11.09 12.3 ~ 600 3
28 2MASX J08374102+6013389 G 08 37 40.912 +60 13 39.09           ~ 6 0
29 LEDA 1556157 AGN 08 40 25.5456429936 +18 18 59.036110128           ~ 17 0
30 US 1442 Sy1 08 40 29.9112912216 +47 07 10.241384412   18.2       ~ 68 0
31 [RGG2013] 7 AGN 08 42 04.93436 +40 39 34.5263           ~ 5 0
32 LEDA 1832296 AG? 08 44 49.1308028160 +28 18 53.614797120           ~ 12 0
33 LEDA 24880 AGN 08 51 25.8117860976 +39 35 41.740775556   16.5       ~ 23 0
34 LEDA 3452665 G 08 55 48.26117 +35 45 02.0447           ~ 5 0
35 LEDA 1529336 AGN 09 00 19.66337 +17 17 36.9878           ~ 10 0
36 [RGG2013] 8 AGN 09 02 22.7493555192 +14 10 49.304478108           ~ 3 0
37 LEDA 3095851 Sy2 09 06 13.7690094288 +56 10 15.125487348   18.04 17.67     ~ 52 0
38 SDSS J090737.06+352828.4 G 09 07 37.0555154928 +35 28 28.420649184           ~ 4 0
39 NVSS J090746+330956 rG 09 07 46.2340183920 +33 10 01.003115028           ~ 23 0
40 LEDA 2626363 AGN 09 11 22.249 +61 52 45.28           ~ 7 0
41 2MASS J09155531+1006076 AGN 09 15 55.3090563864 +10 06 07.637857128           ~ 5 0
42 SDSS J091720.88+191018.9 G 09 17 20.8805376264 +19 10 18.994649448           ~ 4 0
43 [RGG2013] 10 AGN 09 21 29.9898722472 +21 31 39.380567556           ~ 9 0
44 LEDA 4010155 G 09 27 47.65613 +33 12 33.1990           ~ 4 0
45 SDSS J093226.80+420516.8 G 09 32 26.8043892648 +42 05 16.866213252           ~ 2 0
46 LEDA 27099 G 09 32 39.4542691176 +51 15 42.559812432   18       ~ 5 0
47 [VV2010c] J093313.9+015858 Sy1 09 33 13.94897 +01 58 58.7327   19.22 18.81     ~ 9 0
48 LEDA 1784726 AG? 09 34 44.94239 +26 40 28.2087           ~ 6 0
49 ECO 10298 G 09 38 21.5512225656 +06 31 30.776497536           ~ 5 0
50 SDSS J094705.72+050159.8 G 09 47 05.7219424752 +05 01 59.984147784           ~ 5 0
51 LEDA 3532078 AG? 09 50 20.07856 +36 04 46.7014           ~ 9 0
52 LEDA 4010364 AG? 09 51 47.61036 +03 07 22.0074           ~ 9 0
53 2MASX J09541809+4717246 Sy2 09 54 18.1534473168 +47 17 25.080488916           ~ 31 0
54 SDSS J095609.64+021448.3 Sy2 09 56 09.6432107064 +02 14 48.386740956   19.12 18.46 17.229   ~ 7 0
55 2dFGRS TGN420Z105 AGN 10 00 08.4129909240 +00 59 05.318531016           ~ 7 0
56 SDSS J100423.33+231323.4 AGN 10 04 23.3388696264 +23 13 23.414622276           ~ 7 0
57 2MASS J10093566+2656488 AGN 10 09 35.6611357920 +26 56 48.934611816           ~ 16 0
58 LEDA 1689865 G 10 11 03.3436994352 +23 34 47.198148096           ~ 6 0
59 SDSS J101440.21+192448.9 AGN 10 14 40.212 +19 24 48.95           ~ 10 0
60 SDSS J101747.09+393207.8 G 10 17 47.0824064064 +39 32 07.765066932           ~ 9 0
61 2MASS J10214904+6352062 AG? 10 21 49.1363240688 +63 52 06.637771380           ~ 4 0
62 [RGG2013] 13 AGN 10 22 52.2325890264 +46 42 20.689633008           ~ 4 0
63 SDSS J102355.74+065452.7 G 10 23 55.7471392176 +06 54 52.786287756           ~ 2 0
64 SDSS J102833.33+184513.9 G 10 28 33.3326314080 +18 45 14.031962568           ~ 4 0
65 SDSS J103134.64+190407.1 G 10 31 34.647 +19 04 07.17           ~ 7 0
66 [RGG2013] 70 G 10 38 48.9646954776 +38 02 45.238507692           ~ 2 0
67 [RGG2013] 71 H2G 10 41 19.8027756600 +14 36 41.171053428           ~ 6 0
68 LEDA 213731 AG? 10 46 44.861 +25 55 02.03           ~ 12 0
69 SDSS J104758.09+335536.9 G 10 47 58.08540 +33 55 36.8453   18.4   18.6   ~ 8 0
70 SDSS J105006.07+163053.2 G 10 50 06.0712599024 +16 30 53.208354312           ~ 2 0
71 SDSS J105100.64+655940.5 Sy1 10 51 00.6473832000 +65 59 40.615085292   17.7 17.52     ~ 14 0
72 SDSS J105447.88+025652.4 AGN 10 54 47.8890083808 +02 56 52.653369840           ~ 13 0
73 SDSS J105555.12+135617.0 G 10 55 55.1313543360 +13 56 16.931059512           ~ 5 0
74 LEDA 2358752 G 11 00 27.041 +49 57 45.13           ~ 4 0
75 SDSS J110219.75+123107.1 G 11 02 19.7559984936 +12 31 07.082217732           ~ 2 0
76 ECO 1677 AGN 11 05 03.9647342304 +22 41 23.473524048           ~ 6 0
77 Z 291-32 Sy2 11 09 12.4004349792 +61 23 46.752295380   15.66 15.29     ~ 30 0
78 LEDA 3392037 AGN 11 13 19.2366186888 +04 44 25.151996076           ~ 6 0
79 SDSS J111548.27+150017.7 AGN 11 15 48.2647848144 +15 00 17.690295996           ~ 5 0
80 NGC 3621 Sy2 11 18 16.300 -32 48 45.36 10.10 9.44 9.56 8.07 10.1 ~ 661 3
81 LEDA 1698412 AGN 11 23 15.7534910016 +24 02 05.272272384           ~ 16 0
82 AGC 213085 G 11 26 31.77348 +09 55 15.4596           ~ 8 0
83 SDSS J112957.63+653804.6 G 11 29 57.6358379784 +65 38 04.630961724           ~ 3 0
84 SDSS J113024.28+232200.2 G 11 30 24.2757397464 +23 22 00.297234120           ~ 5 0
85 SDSS J113129.20+350958.9 G 11 31 29.1976939032 +35 09 58.982690160           ~ 4 0
86 Mrk 177 AGN 11 33 23.474 +55 04 20.61   16.0       ~ 38 0
87 LEDA 1162554 G 11 34 13.7459158992 +00 18 34.143885252   18.092   17.117   ~ 11 0
88 LEDA 1473566 AG? 11 39 13.535 +15 02 15.75           ~ 13 0
89 ECO 11480 AGN 11 43 02.4103926552 +26 08 18.928999752           ~ 7 0
90 SDSS J114343.76+550019.3 Sy1 11 43 43.76178 +55 00 19.2152   17.64 17.29     ~ 16 0
91 SDSS J114359.59+244251.7 Sy2 11 43 59.5900651752 +24 42 51.721256124           ~ 6 0
92 SDSS J114418.84+334007.4 AGN 11 44 18.8393098296 +33 40 07.494811176           ~ 3 0
93 SDSS J114800.65+274946.1 G 11 48 00.6560509128 +27 49 46.216852788           ~ 5 0
94 SDSS J114902.63+185111.5 AG? 11 49 02.632 +18 51 11.56           ~ 7 0
95 2MASS J11530861+3011149 AG? 11 53 08.6490488952 +30 11 14.909684460           ~ 7 0
96 SDSS J115359.06+130853.6 G 11 53 59.0684683152 +13 08 53.599687980           ~ 6 0
97 LEDA 1826835 AG? 11 57 17.47169 +28 07 08.5601           ~ 9 0
98 SDSS J115812.53+575321.9 G 11 58 12.5386865208 +57 53 21.900554556           ~ 5 0
99 SDSS J115922.34+511809.0 G 11 59 22.3463954720 +51 18 09.061151901           ~ 4 0
100 POX 52 Sy2 12 02 56.93256 -20 56 02.9580           ~ 178 0
101 SDSS J120325.66+330846.1 AGN 12 03 25.6701145224 +33 08 46.126735692           ~ 10 0
102 MCG+08-22-083 AG? 12 11 55.708 +46 58 54.59   17       ~ 13 0
103 SDSS J121813.43+200436.8 G 12 18 13.4344580952 +20 04 36.817935600           ~ 9 0
104 NGC 4282 GiG 12 20 24.2894876304 +05 34 22.162152252   14.7       ~ 37 0
105 NGC 4286 GiP 12 20 42.0901920360 +29 20 45.133999764   14.10       ~ 83 1
106 2MASX J12234282+5814459 Sy1 12 23 42.8115876144 +58 14 46.104372420   18.10 17.24     ~ 50 0
107 Z 42-90 GiG 12 25 05.6109863952 +05 19 44.785045272   15.4       ~ 36 0
108 NGC 4395 Sy2 12 25 48.8633109888 +33 32 48.700168152 10.84 10.54 10.11 9.98   ~ 1286 1
109 NGC 4445 GiG 12 28 15.9765764928 +09 26 11.041418652   13.7       ~ 144 0
110 SDSS J124033.86+092728.4 G 12 40 33.8667153264 +09 27 28.547519760           ~ 3 0
111 NGC 4713 GiG 12 49 57.8802780576 +05 18 40.933127196   12.3       ~ 320 1
112 [RGG2013] 22 AGN 13 04 34.9256914152 +07 55 04.992771396           ~ 11 0
113 LEDA 2080658 AGN 13 04 57.863 +36 26 22.24           ~ 10 0
114 LEDA 2816036 AGN 13 07 24.6444574656 +52 37 15.114872532   17.0       ~ 13 0
115 SDSS J130916.09+415449.4 G 13 09 16.09334 +41 54 49.4276           ~ 2 0
116 2MASS J13100709+3000565 AGN 13 10 07.1043456744 +30 00 56.096159652           ~ 4 0
117 LEDA 2275350 G 13 13 07.115 +46 05 54.36           ~ 6 0
118 ZW VIII 266 AGN 13 15 03.7912609750 +22 35 22.825416986   17.7       ~ 15 0
119 Ton 151 AGN 13 16 03.915 +29 22 54.05   16.71 16.35     ~ 79 0
120 NGP9 F380-1082374 Sy1 13 20 53.664 +21 55 10.28   19.60 19.30     ~ 10 0
121 NGC 5112 GiP 13 21 56.4456124272 +38 44 04.107988140   12.5       ~ 162 0
122 SDSS J132532.34+315333.2 G 13 25 32.3443039344 +31 53 33.150009192           ~ 8 0
123 2MASS J13324560+2634498 Sy2 13 32 45.6194732208 +26 34 49.396736460           ~ 35 0
124 2dFGRS TGN267Z075 Sy1 13 38 15.3805033032 -00 23 54.637705788   16 16.07 15.713   ~ 25 0
125 SDSS J134130.13+242852.0 G 13 41 30.1347705360 +24 28 52.020929460           ~ 3 0
126 [RGG2013] 104 G 13 41 56.146 +50 06 42.22           ~ 3 0
127 LEDA 1740036 G 13 43 32.094 +25 31 57.77           ~ 7 0
128 2MASS J13475771+4654351 Sy2 13 47 57.7032342936 +46 54 34.997057856           ~ 6 0
129 SDSS J134939.36+420241.3 Sy2 13 49 39.3644195016 +42 02 41.339802732           ~ 8 0
130 Z 218-64 H2G 13 51 25.3760186496 +40 12 47.734846344   15.4   13.83   ~ 32 0
131 Z 272-17 EmG 14 01 16.0516683216 +51 52 22.793013012   15.4       ~ 23 0
132 SDSS J140228.72+091856.4 AGN 14 02 28.72816 +09 18 56.4111           ~ 7 0
133 LEDA 1398506 AGN 14 05 10.3956598104 +11 46 16.852236384           ~ 16 0
134 SDSS J140727.51+470523.7 G 14 07 27.5147205792 +47 05 23.746910928           ~ 2 0
135 LEDA 2376061 AG? 14 07 35.566 +50 32 39.18           ~ 11 0
136 SDSS J141120.29-002950.8 G 14 11 20.29723 -00 29 50.7968   18.381   17.144   ~ 14 0
137 [RGG2013] 29 AGN 14 12 08.4737010384 +10 29 53.827680912           ~ 9 0
138 SDSS J141438.18+200405.8 G 14 14 38.18282 +20 04 05.8671           ~ 3 0
139 [RGG2013] 30 AGN 14 20 44.9412674688 +22 42 36.918831240           ~ 4 0
140 LEDA 1387676 G 14 27 20.322 +11 00 53.04           ~ 5 0
141 LEDA 3828184 AG? 14 31 46.7579379072 +26 16 24.396832452           ~ 8 0
142 2MASS J14352341+1007042 Sy2 14 35 23.4319903752 +10 07 04.252298412           ~ 7 0
143 Z 273-22 AG? 14 38 59.227 +51 07 14.69   15.3       ~ 68 0
144 SDSS J144012.70+024743.5 Sy2 14 40 12.7004991288 +02 47 43.607503032   16.83 16.42     ~ 40 0
145 SDSS J144252.78+205451.6 AG? 14 42 52.7865174792 +20 54 51.703834248           ~ 8 0
146 2MASS J14471283+1339393 AGN 14 47 12.840 +13 39 39.38           ~ 5 0
147 SDSS J145518.51+081606.4 G 14 55 18.5128742976 +08 16 06.375789984           ~ 5 0
148 Z 318-18 G 15 09 08.0 +67 13 21   13.60 10.6     ~ 1459 0
149 SDSS J151422.89+060308.3 G 15 14 22.8944864664 +06 03 08.344088712           ~ 5 0
150 SDSS J151608.81+084531.9 G 15 16 08.8114599576 +08 45 32.004363096           ~ 7 0
151 SDSS J152303.79+114545.2 G 15 23 03.796 +11 45 45.25           ~ 23 0
152 2MASS J15263736+0659417 Sy1 15 26 37.3661006568 +06 59 41.689198824           ~ 28 0
153 SDSS J152913.46+083010.7 G 15 29 13.4699256096 +08 30 10.653791508           ~ 4 0
154 SDSS J153031.44+124654.3 G 15 30 31.4513084664 +12 46 54.329733156           ~ 8 0
155 SDSS J153056.85+313649.4 G 15 30 56.8589881344 +31 36 49.546417608           ~ 4 0
156 [RGG2013] 123 Sy1 15 34 25.5883035912 +04 08 06.726186240   18.68 18.22     ~ 30 0
157 Z 107-11 GiP 15 36 31.895 +16 26 25.38   14.70       ~ 36 1
158 SDSS J153941.67+171421.9 AGN 15 39 41.6769552264 +17 14 21.855528708           ~ 7 0
159 [RGG2013] 35 AGN 15 40 59.6126512368 +31 55 07.273016580           ~ 5 0
160 SDSS J154703.20+341319.4 G 15 47 03.2092766856 +34 13 19.427202264           ~ 4 0
161 SDSS J160230.77+142913.1 G 16 02 30.77413 +14 29 13.2030           ~ 5 0
162 2XMM J160531.8+174825 Sy1 16 05 31.8490706465 +17 48 26.223103808           ~ 38 0
163 SDSS J160544.57+085043.9 AG? 16 05 44.5720646952 +08 50 43.915176780           ~ 7 0
164 LEDA 3995175 QSO 16 09 58.68283 +53 50 11.4502           ~ 5 0
165 SDSS J162104.14+402322.4 G 16 21 04.1501523144 +40 23 22.401174552           ~ 5 0
166 SDSS J162244.79+323933.0 EmG 16 22 44.7857504616 +32 39 33.032059092           ~ 19 0
167 2MASS J16251465+4843167 AG? 16 25 14.6551946928 +48 43 16.781080332           ~ 13 0
168 SDSS J163210.87+290130.5 G 16 32 10.8744019152 +29 01 30.548123076           ~ 4 0
169 SDSS J164402.63+273405.4 G 16 44 02.631 +27 34 05.47           ~ 5 0
170 SDSS J170104.49+255207.9 G 17 01 04.4895857784 +25 52 07.990327704           ~ 3 0
171 Z 300-7 AG? 17 18 31.1234469912 +60 35 09.942783648   15.5       ~ 18 0
172 2MASS J17320297+5958547 AGN 17 32 02.9624805408 +59 58 54.788992320           ~ 12 0
173 LEDA 4014631 G 23 56 09.01 -00 24 28.0           ~ 8 0
174 NAME Local Group GrG ~ ~           ~ 9325 0

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