2021ApJ...914..107C

Query : 2021ApJ...914..107C

2021ApJ...914..107C - Astrophys. J., 914, 107-107 (2021/June-3)

High-energy emission from Tidal disruption events in active galactic nuclei.

CHAN C.-H., PIRAN T. and KROLIK J.H.

Abstract (from CDS):

Tidal disruption events (TDEs) taking place in active galactic nuclei (AGNs) are different from ordinary TDEs. In these events, the returning tidal debris stream drills through the preexisting AGN accretion disk near the stream pericenter, destroying the inner disk in the process, and then intersects with the disk a second time at radii ranging from a few times to hundreds of times the pericenter distance. The debris dynamics of such TDEs, and hence their appearance, are distinct from those of ordinary TDEs. Here we explore the observational signatures of this "second impact" of the stream with the disk. Strong shocks form as the dilute stream is stopped by the denser disk. Compton cooling of the shocked material produces hard X-rays and even soft γ-rays, with most of the energy emitted between ∼10 keV and 1 MeV. The luminosity follows the mass-return rate, peaking between ∼1042 and 1044 erg s–1. The X-ray hardness and the smoothness of the light curve provide possible means for distinguishing the second impact from ordinary AGN flares, which exhibit softer spectra and more irregular light curves.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): High energy astrophysics - black hole physics - Gravitation - Accretion - Gamma-ray transient sources - X-ray transient sources - Hydrodynamical simulations - Active galactic nuclei - Tidal disruption

Simbad objects: 1

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Number of rows : 1
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 ZW VIII 211 rG 12 48 15.2253025968 +17 46 26.475426228   16.5       ~ 360 0

Query : 2021ApJ...914..107C

Basic data :
ZW VIII 211 -- Radio Galaxy
Other object types: otypes_help 		rG (), G (2010MNRAS,ECO,...), Rad (NVSS,FIRST), AG? (2020MNRAS), * (Gaia), NIR (2MASS), MIR (WISE), Opt (SDSS), ev (2014ATel)
ICRS coord. (ep=J2000) : 		12 48 15.2253025968 +17 46 26.475426228 (Optical) [ 0.1712 0.1079 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		12 45 45.8617308323 +18 02 47.606831826 [ 0.1712 0.1079 90 ]
Gal coord. (ep=J2000) : 		298.2773475919871 +80.6169788944996 [ 0.1712 0.1079 90 ]
Proper motions mas/yr : 		0.687 -0.362 [0.226 0.199 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 6106 [3] / z(spectroscopic) 0.02058 [0.00001] / cz 6169.7 [3.0]
   (Opt) C 2020ApJS..249....3A
Parallaxes (mas): 		0.163 [0.2016] A 2020yCat.1350....0G
Morphological type: 		dG D 2010MNRAS.404.1745M
Fluxes (10) :
B 16.5 [~] E ~
G 17.813709 [0.006316] C 2020yCat.1350....0G
J 14.336 [0.038] C 2003yCat.2246....0C
H 13.790 [0.048] C 2003yCat.2246....0C
K 13.619 [0.053] C 2003yCat.2246....0C
u (AB) 17.532 [0.012] C 2020ApJS..249....3A
g (AB) 16.076 [0.003] B 2020ApJS..249....3A
r (AB) 15.538 [0.003] B 2020ApJS..249....3A
i (AB) 15.280 [0.003] B 2020ApJS..249....3A
z (AB) 15.117 [0.005] B 2020ApJS..249....3A
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 : 4290 Display criteria :

Identifiers (13) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

NVSS J124815+174629 LEDA 43234 ZW VIII 211 Gaia DR3 3935727851882013952
ASASSN -14li 2MASS J12481522+1746261 [MBS2017b] J124815.11+174626.4
ECO 12674 SDSS J124815.23+174626.4 [MHR2010] 192.0635+17.7740
FIRST J124815.2+174626 WISE J124815.23+174626.5 Gaia DR2 3935727851882013952

References (360 between 1850 and 2026) (Total 360)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 3    Plx : 2    PM : 2   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : ZW VIII 211

Link by name to the catalogue in VizieR :

NVSS J124815+174629 FIRST J124815.2+174626 2MASS J12481522+1746261 SDSS J124815.23+174626.4 WISE J124815.23+174626.5
Gaia DR2 3935727851882013952 Gaia DR3 3935727851882013952

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