2017MNRAS.471.1694W


C.D.S. - SIMBAD4 rel 1.7 - 2021.05.17CEST03:54:22

2017MNRAS.471.1694W - Mon. Not. R. Astron. Soc., 471, 1694-1708 (2017/October-3)

Black hole masses of tidal disruption event host galaxies.

WEVERS T., VAN VELZEN S., JONKER P.G., STONE N.C., HUNG T., ONORI F., GEZARI S. and BLAGORODNOVA N.

Abstract (from CDS):

The mass of the central black hole in a galaxy that hosted a tidal disruption event (TDE) is an important parameter in understanding its energetics and dynamics. We present the first homogeneously measured black hole masses of a complete sample of 12 optically/UV-selected TDE host galaxies (down to ghost <= 22 mag and z = 0.37) in the Northern sky. The mass estimates are based on velocity dispersion measurements, performed on late time optical spectroscopic observations. We find black hole masses in the range of 3 x 105 M <= MBH <= 2 x 107 M. The TDE host galaxy sample is dominated by low-mass black holes (∼ 106 M), as expected from theoretical predictions. The blackbody peak luminosity of TDEs with MBH <= 107.1 M is consistent with the Eddington limit of the supermassive black hole (SMBH), whereas the two TDEs with MBH >= 107.1 M have peak luminosities below their SMBH Eddington luminosity, in line with the theoretical expectation that the fallback rate for MBH >= 107.1 M is sub-Eddington. In addition, our observations suggest that TDEs around lower mass black holes evolve faster. These findings corroborate the standard TDE picture in 106 M black holes. Our results imply an increased tension between observational and theoretical TDE rates. By comparing the blackbody emission radius with theoretical predictions, we conclude that the optical/UV emission is produced in a region consistent with the stream self-intersection radius of shallow encounters, ruling out a compact accretion disc as the direct origin of the blackbody radiation at peak brightness.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): accretion, accretion discs - galaxies: bulges - galaxies: fundamental parameters - galaxies: kinematics and dynamics - galaxies: nuclei - 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 - 2021
#notes
1 NAME AT 2016fnl ev 00 29 57.04 +32 53 37.5           ~ 59 0
2 PTF 15af SN* 08 48 28.13 +22 03 33.4           ~ 30 0
3 SDSS J084828.13+220333.5 G 08 48 28.1438978336 +22 03 33.542304951           ~ 6 0
4 PS1-11af ev 09 57 26.815 +03 14 01.00           ~ 53 0
5 Feige 34 HS* 10 39 36.7377085527 +43 06 09.209752646 9.613 10.91 11.14 11.319 11.464 sdOp 620 0
6 ASASSN -14ae SN* 11 08 40.11 +34 05 52.4           ~ 76 0
7 LEDA 43234 G 12 48 15.2244073438 +17 46 26.496619532   16.5       ~ 164 0
8 [GBM2008] D3-13 G 14 19 29.80863 +52 52 06.3650   22.16   20.139 19.580 ~ 41 0
9 PTF 09axc SN* 14 53 13.06 +22 14 32.2           SNII 37 0
10 PSN K0905-001 SN? 14 57 03.10 +49 36 40.8           ~ 57 0
11 PS1-10jh ev 16 09 28.296 +53 40 23.52           ~ 110 0
12 PTF 09djl SN* 16 33 55.94 +30 14 16.3           SNII 48 0
13 iPTF 16axa ev 17 03 34.36 +30 35 36.8           ~ 31 0
14 ASASSN -15oi SN* 20 39 09.096 -30 45 20.71           ~ 69 0
15 [GHC2009] D23H-1 G 23 31 59.536 +00 17 14.58   20.67   19.30 18.83 ~ 20 0
16 [VFG2011] TDE1 ev 23 42 01.406 +01 06 29.30           ~ 15 0

    Equat.    Gal    SGal    Ecl

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2021.05.17-03:54:22

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