2022MNRAS.517.4213V

Query : 2022MNRAS.517.4213V

2022MNRAS.517.4213V - Mon. Not. R. Astron. Soc., 517, 4213-4219 (2022/December-2)

A general relativistic mass-to-distance ratio for a set of megamaser AGN black holes.

VILLARAOS D., HERRERA-AGUILAR A., NUCAMENDI U., GONZALEZ-JUAREZ G. and LIZARDO-CASTRO R.

Abstract (from CDS):

In this work, we perform a Bayesian statistical fit to estimate the mass-to-distance ratio and the recessional redshift of 10 different black holes hosted at the centre of active galactic nuclei, namely the galaxies NGC 5765b, NGC 6323, UGC 3789, CGCG 074-064, ESO 558-G009, NGC 2960, NGC 6264, NGC 4388, J0437+2456, and NGC 2273. Our general relativistic method makes use of the positions in the sky and frequency shift observations of water megamasers circularly orbiting the central black hole on their accretion discs. This approach also allows us to quantify the gravitational redshift that is not considered in a Newtonian analysis. The gravitational redshift of the megamasers closest to the black hole is found to be within the range 1-6 km s–1. The order of the fitted black hole masses corresponds to supermassive black holes and lies on the range 106-107M⊙.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): black hole physics - masers - methods: statistical - galaxies: high-redshift - galaxies: nuclei

Simbad objects: 16

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Number of rows : 16
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 SDSS J043703.67+245606.8 GiG 04 37 03.6816891024 +24 56 06.870657804           ~ 37 0
2 NGC 2273 Sy1 06 50 08.6691789600 +60 50 44.864645136   14.50 13.54     ~ 566 2
3 ESO 558-9 G 07 04 21.002 -21 35 19.36           ~ 36 0
4 Z 286-10 Sy2 07 19 30.892 +59 21 18.48   13.3       ~ 148 0
5 NGC 2960 SyG 09 40 36.3826266216 +03 34 37.235848260   13.60       ~ 197 1
6 M 106 Sy2 12 18 57.620 +47 18 13.39   9.14 8.41 8.11   ~ 2512 4
7 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1433 2
8 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
9 Z 74-64 Sy2 14 03 04.4580287352 +08 56 51.024409296   15.1       ~ 33 0
10 NGC 5765B Sy2 14 50 51.50555 +05 06 52.1550   14.6       ~ 80 1
11 NGC 6264 Sy2 16 57 16.1272966344 +27 50 58.574330124   15.5       ~ 123 1
12 NGC 6323 GiG 17 13 18.0454114728 +43 46 56.772281424   14.8       ~ 103 1
13 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
14 [EG97] S2 * 17 45 40.0442 -29 00 27.975           B0/2V 420 1
15 NAME TXFS 2226-1821 Sy2 22 29 12.4915751904 -18 10 47.242352208   16.92   15.73   ~ 65 1
16 NAME Local Group GrG ~ ~           ~ 9325 0

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