2013MNRAS.431..210C

Query : 2013MNRAS.431..210C

2013MNRAS.431..210C - Mon. Not. R. Astron. Soc., 431, 210-239 (2013/May-1)

Black hole mass estimate for a sample of radio-loud narrow-line Seyfert 1 galaxies.

CALDERONE G., GHISELLINI G., COLPI M. and DOTTI M.

Abstract (from CDS):

We discuss the relationship between a standard Shakura & Sunyaev accretion disc model and the big blue bump (BBB) observed in Type 1 active galactic nuclei. Given the similarity between the BBB and the predicted disc spectrum, we propose a new method to estimate black hole masses which relies on the modelling of both optical and UV data with a Shakura & Sunyaev disc spectrum. We apply this method to a sample of 23 radio-loud narrow-line Seyfert 1 (RL-NLS1) galaxies, using data from Wide-field Infrared Survey Explorer, SDSS and GALEX. Our black hole mass estimates are at least a factor of ∼ 6 above previous results based on single epoch virial methods, while the Eddington ratios are correspondingly lower. Hence, the black hole masses of RL-NLS1 galaxies are typically above 108M☉, in agreement with the typical black hole mass of blazars.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): accretion discs - galaxies: jets - quasars: emission lines

Simbad objects: 23

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Number of rows : 23
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 QSO J0814+5609 QSO 08 14 32.1162400824 +56 09 56.686925448   18.30 18.11     ~ 55 1
2 QSO J0849+5108 BLL 08 49 57.97685916 +51 08 29.0238146   19.37 18.78 17.79   ~ 270 2
3 SDSS J085001.16+462600.5 Sy1 08 50 01.1692673952 +46 26 00.568091904   19.55 19.18     ~ 40 1
4 2MASS J09022718+0443088 Sy1 09 02 27.1589566512 +04 43 09.590616912   19.46 19.12     ~ 41 1
5 QSO J0948+0022 Bla 09 48 57.32005819 +00 22 25.5596984   18.85 18.61 18.17   ~ 350 2
6 QSO J0953+2836 Sy1 09 53 17.1013747608 +28 36 01.574452728   19.46 19.29     ~ 40 0
7 2MASS J10312373+4234386 Sy1 10 31 23.7330100704 +42 34 39.339745716   19.85 19.41     ~ 28 0
8 2QZ J103727.4+003634 Sy1 10 37 27.4519322304 +00 36 35.614322496   20.16 19.80     ~ 37 0
9 54P 31 Sy1 10 47 32.6885836752 +47 25 32.035467072   19.24 18.95     ~ 67 1
10 FIRST J111005.0+365336 Sy1 11 10 05.0364218064 +36 53 36.320648064   21.09 20.88     ~ 34 1
11 2MASS J11382454+3653278 Sy1 11 38 24.5426717880 +36 53 27.123842904   20.11 19.50     ~ 29 1
12 FBQS J1146+3236 BLL 11 46 54.2909118504 +32 36 52.309717344   19.20 18.89     ~ 39 0
13 QSO J1238+3942 QSO 12 38 52.1280198240 +39 42 27.860152572   20.09 19.85     ~ 29 0
14 PB 4215 Sy1 12 46 34.6524231888 +02 38 09.106661148   18.74 18.46     ~ 55 1
15 6C 130312+513213 Sy1 13 05 22.7454747504 +51 16 40.206559080   17.65 17.40     ~ 62 1
16 QSO J1435+3131 Sy1 14 35 09.4968412896 +31 31 47.838693540   19.92 19.59     ~ 40 1
17 6C 144133+473846 QSO 14 43 18.5610671304 +47 25 56.676226944   18.61 18.48     ~ 54 1
18 QSO J1505+0326 Bla 15 05 06.47716039 +03 26 30.8125704   19.02 18.62 17.72   ~ 278 1
19 7C 154622.8+352013 Bla 15 48 17.9178497040 +35 11 28.062838536   18.49 18.33 18.4   ~ 68 1
20 2MASX J16332357+4718588 Sy1 16 33 23.5812109560 +47 18 58.936241628   17.77 17.35     ~ 88 1
21 QSO J1634+4809 Sy1 16 34 01.9380790392 +48 09 40.115907108   19.91 19.54     ~ 39 0
22 QSO J1644+2619 Bla 16 44 42.5339200680 +26 19 13.227002976   18.80 18.42     ~ 114 1
23 2MASS J17220601+5654518 Sy1 17 22 06.0278806104 +56 54 51.664893732   18.79 18.48     ~ 67 1

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