2016ApJ...819...11V

Query : 2016ApJ...819...11V

2016ApJ...819...11V - Astrophys. J., 819, 11 (2016/March-1)

Toward precision supermassive black hole masses using megamaser disks.

VAN DEN BOSCH R.C.E., GREENE J.E., BRAATZ J.A., CONSTANTIN A. and KUO C.-Y.

Abstract (from CDS):

Megamaser disks provide the most precise and accurate extragalactic supermassive black hole (BH) masses. Here we describe a search for megamasers in nearby galaxies using the Green Bank Telescope (GBT). We focus on galaxies where we believe that we can resolve the gravitational sphere of influence of the BH and derive a stellar or gas dynamical measurement with optical or NIR observations. Since there are only a handful of super massive BHs that have direct BH mass measurements from more than one method, even a single galaxy with a megamaser disk and a stellar dynamical BH mass would provide necessary checks on the stellar dynamical methods. We targeted 87 objects from the Hobby-Eberly Telescope Massive Galaxy Survey, and detected no new maser disks. Most of the targeted objects are elliptical galaxies with typical stellar velocity dispersions of 250 km s–1 and distances within 130 Mpc. We discuss the implications of our non-detections, whether they imply a threshold X-ray luminosity required for masing, or possibly reflect the difficulty of maintaining a masing disk around much more massive (≳108M☉) BHs at a low Eddington ratio. Given the power of maser disks for probing BH accretion and demographics, we suggest that future maser searches should endeavour to remove remaining sample biases, in order to sort out the importance of these covariant effects.

Abstract Copyright: ∼

Journal keyword(s): black hole physics - galaxies: active - galaxies: nuclei - masers - radio lines: galaxies - surveys

Simbad objects: 95

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Number of rows : 95
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 50 GiG 00 14 44.5733082408 -07 20 42.430374384   12   11.65   ~ 39 0
2 NGC 93 GiG 00 22 03.2268170088 +22 24 29.199566736   14.7       ~ 53 0
3 NGC 311 GiG 00 57 32.7230472384 +30 16 50.654332632 14.57 14.00 13.00     ~ 56 1
4 NGC 384 GiG 01 07 25.0135015920 +32 17 33.865906848   14.3       ~ 92 1
5 NGC 430 EmG 01 12 59.9293102944 -00 15 09.003769560   13.6       ~ 69 0
6 NGC 533 rG 01 25 31.4074984248 +01 45 33.236656812   13.1 14.11     ~ 237 1
7 NGC 550 GiG 01 26 42.5524422336 +02 01 20.315985168   13.6       ~ 41 0
8 NGC 584 Sy2 01 31 20.7231919800 -06 52 04.770287472 11.93 11.44 10.48     ~ 417 2
9 Z 552-3 rG 01 39 08.9875138872 +48 16 57.613260787   15.3       ~ 18 1
10 NGC 898 GiG 02 23 20.3699516160 +41 57 04.893861924   13.84       ~ 35 1
11 Z 538-64 Sy1 02 24 44.4275667984 +42 37 22.994908680   13.90       ~ 38 1
12 NGC 982 GiG 02 35 24.855 +40 52 10.91   13.2       ~ 34 0
13 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
14 Z 462-46 G 02 42 29.0248922088 +18 09 52.771080276   15.5       ~ 20 0
15 Z 554-4 GiP 02 48 17.4407871576 +50 48 00.797576112   15.2       ~ 19 0
16 NGC 1153 AG? 02 58 10.3205584152 +03 21 43.041632292   13.5       ~ 40 0
17 Z 540-29 GiC 03 02 06.6933623448 +41 35 36.719771028   14.9       ~ 24 0
18 NGC 1208 GiG 03 06 11.9046679272 -09 32 29.399744796   14   12.08   ~ 31 0
19 LEDA 138608 AG? 03 13 53.1674899008 +62 32 58.972502220           ~ 11 0
20 Z 541-15 rG 03 29 23.8863408096 +39 47 31.958110536   14.9       ~ 99 0
21 NGC 1399 rG 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1636 1
22 Z 327-9 GiG 03 50 15.0019023336 +70 05 40.328180844   15.5       ~ 75 1
23 Z 526-11 GiG 03 52 16.9309241352 +36 14 12.556570632   15.0       ~ 21 0
24 NGC 1465 GiG 03 53 31.9094658336 +32 29 33.770262012   14.9       ~ 26 0
25 NGC 1469 GiG 04 00 27.8027632896 +68 34 39.827959068   14.5       ~ 23 0
26 IC 356 AG? 04 07 46.8869589504 +69 48 44.715725208   13.3       ~ 161 1
27 IC 359 GiG 04 12 28.3252464576 +27 42 06.882820164   15.4       ~ 27 1
28 UGC 3024 GiG 04 22 26.5892098056 +27 17 52.276515252   16.5       ~ 15 0
29 2MASX J04310522+2324076 AG? 04 31 05.222 +23 24 07.66           ~ 5 0
30 2MASX J04315707+5925473 GiG 04 31 57.072 +59 25 47.36           ~ 16 0
31 NGC 1653 Sy2 04 45 47.3444905032 -02 23 34.441646712   12.9       ~ 62 0
32 Z 308-7 Sy2 06 02 37.9867327248 +65 22 16.471561296   14.4       ~ 47 1
33 Z 175-24 GiG 06 55 27.6491672712 +33 16 49.468355976   14.8       ~ 16 0
34 MCG-01-19-001 AG? 07 22 10.8823158168 -05 55 46.923599496   15       ~ 31 2
35 Z 286-20 GiG 07 28 13.0201646304 +58 30 23.907837708   14.2       ~ 31 0
36 NGC 2411 GiG 07 34 36.3283195800 +18 16 53.541159708   14.6       ~ 16 0
37 NGC 2522 SyG 08 06 13.4435277816 +17 42 23.631262992   14.4       ~ 40 0
38 Z 287-76 G 08 26 24.8889667680 +59 53 43.675784592   15.5       ~ 16 0
39 MCG-01-22-013 Sy1 08 28 47.1087407064 -06 56 24.416711016   15.5       ~ 94 0
40 NGC 2787 LIN 09 19 18.6046606656 +69 12 11.630716128   12.92 11.79     ~ 381 0
41 NGC 2960 SyG 09 40 36.3826266216 +03 34 37.235848260   13.60       ~ 197 1
42 NGC 3277 Sy2 10 32 55.4484213912 +28 30 42.279280956 12.74 12.50 11.68     ~ 148 1
43 IC 624 Sy1 10 36 15.1911059664 -08 20 02.266068912   13.5       ~ 32 0
44 NGC 3348 GiG 10 47 10.0367649672 +72 50 22.685834940   12.0       ~ 127 0
45 M 105 LIN 10 47 49.600 +12 34 53.87   10.56 9.76 9.12 8.18 ~ 1504 0
46 Z 213-8 G 10 56 16.0578482712 +42 19 59.313168660   15.4       ~ 50 0
47 Z 127-48 rG 11 45 27.6567861312 +20 48 25.913033028   15.0       ~ 42 0
48 NGC 3869 LIN 11 45 45.5734095744 +10 49 28.783808724   13.5       ~ 43 0
49 NGC 3894 Bla 11 48 50.35817663 +59 24 56.3822416   12.9   11.57   ~ 268 1
50 NGC 3919 GiG 11 50 41.5279261176 +20 00 54.670132620   14.5       ~ 45 0
51 M 109 GiG 11 57 35.9631479640 +53 22 29.006082336   10.94   9.57   ~ 483 0
52 NGC 4125 GiP 12 08 06.017 +65 10 26.88 11.14 10.65 9.72     ~ 448 2
53 NGC 4256 GiP 12 18 43.0841510160 +65 53 53.778611796   12.7       ~ 87 0
54 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
55 NGC 4403 GiG 12 26 12.7912275144 -07 41 05.577172584   14   13.00   ~ 28 0
56 NGC 4646 GiG 12 42 52.1454845712 +54 51 21.510402480   13.8       ~ 40 0
57 NGC 4673 GiG 12 45 34.6697689368 +27 03 38.999971728   13.7       ~ 85 0
58 NGC 4786 Sy2 12 54 32.4179670456 -06 51 33.866877456   14   11.63   ~ 80 0
59 NGC 4945 Sy2 13 05 27.279 -49 28 04.44   9.31 14.40 7.55   ~ 1582 2
60 NGC 4958 Sy1 13 05 48.8957905464 -08 01 12.999361656   12.10   10.77   ~ 109 0
61 2MASX J13092704-0718450 GiG 13 09 27.0542602848 -07 18 45.365002812           ~ 12 0
62 NGC 5133 rG 13 24 52.9118328360 -04 04 55.259961744   15   13.68   ~ 19 0
63 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
64 NGC 5228 SyG 13 34 35.0596691376 +34 46 39.988341264   14.5       ~ 51 0
65 IC 948 LIN 13 52 26.7094240176 +14 05 28.631972472   14.4       ~ 57 0
66 NGC 5400 AGN 14 00 37.2019047360 -02 51 28.136336400   14.5       ~ 58 0
67 NGC 5463 GiG 14 06 10.5424000008 +09 21 12.395610720   14.1       ~ 30 0
68 NGC 5623 rG 14 27 08.6649857774 +33 15 08.993540267   13.53 12.53 12.86 12.16 ~ 55 1
69 NGC 5739 GiG 14 42 28.9126552632 +41 50 32.458376940   13.7       ~ 64 0
70 Z 76-99 SyG 14 55 55.2696190790 +11 51 41.473070545   14.9       ~ 54 1
71 Z 136-32 GiG 15 37 22.899 +20 32 59.34   14.7       ~ 42 0
72 Z 250-21 LIN 15 55 43.2631347161 +47 52 02.128636072   14.1       ~ 81 1
73 IC 1153 LIN 15 57 03.0027166560 +48 10 06.149934372   13.6       ~ 55 0
74 NGC 6036 LIN 16 04 30.7493154096 +03 52 06.520852740   14.40       ~ 39 1
75 NGC 6146 Bla 16 25 10.3269925320 +40 53 34.331514324   13.8       ~ 139 1
76 NGC 6240 Sy2 16 52 58.9 +02 24 03   14.31 13.37     ~ 1734 2
77 2MASX J17361111+0828558 G 17 36 11.1094706544 +08 28 55.533325728           ~ 10 0
78 NGC 6508 G 17 49 46.4099914272 +72 01 16.038035796   14.0       ~ 17 0
79 Z 141-40 GiP 18 00 05.5269564720 +26 21 59.252253012   14.4       ~ 26 0
80 NGC 6548 GiP 18 05 59.2439762424 +18 35 14.256371040   13.1       ~ 82 0
81 NGC 6619 AG? 18 18 55.5325477656 +23 39 20.174539320   14.3       ~ 23 0
82 Z 114-17 rG 18 36 39.661 +19 43 45.43   14.8 14     ~ 35 0
83 NGC 6688 GiG 18 40 40.1488190832 +36 17 22.691282280   13.9       ~ 28 0
84 Z 143-24 GiG 18 47 44.1842631336 +23 20 50.258746320   15.0       ~ 24 0
85 3C 403.0 Sy2 19 52 15.7996999344 +02 30 24.238200816   15.42 16.5     ~ 353 1
86 NGC 6921 Sy2 20 28 28.8658027224 +25 43 24.094324884 15.41   12.897     ~ 104 1
87 NAME Calar Alto 1 GiG 21 20 42.4842772872 +44 23 59.183678616           ~ 21 0
88 Z 545-3 GiG 22 08 27.4047250488 +48 26 26.563724448   13.0       ~ 38 0
89 NAME TXFS 2226-1821 Sy2 22 29 12.4915751904 -18 10 47.242352208   16.92   15.73   ~ 65 1
90 NGC 7391 EmG 22 50 36.1354224576 -01 32 41.420188356   13.7       ~ 69 0
91 NGC 7426 GiG 22 56 02.8573647192 +36 21 40.721198616   13.6       ~ 40 0
92 NGC 7436 GiG 22 57 57.5438666496 +26 08 59.953374888           ~ 93 0
93 IC 5285 AG? 23 06 58.9445029080 +22 56 11.310244008   14.4       ~ 51 1
94 NGC 7671 GiP 23 27 19.3401587400 +12 28 02.728494624   14.3       ~ 71 0
95 NGC 7728 rG 23 40 00.83890 +27 08 01.3730   14.3       ~ 113 1

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