2017ApJ...841L...8D

Query : 2017ApJ...841L...8D

2017ApJ...841L...8D - Astrophys. J., 841, L8-L8 (2017/May-3)

Discovery of a mid-infrared echo from the TDE candidate in the nucleus of ULIRG F01004-2237.

DOU L., WANG T., YAN L., JIANG N., YANG C., CUTRI R.M., MAINZER A. and PENG B.

Abstract (from CDS):

We present the mid-infrared (MIR) light curves (LCs) of a tidal disruption event candidate in the center of a nearby ultraluminous infrared galaxy F01004-2237 using archival WISE and NEOWISE data from 2010 to 2016. At the peak of the optical flare, F01004-2237 was IR quiescent. About three years later, its MIR fluxes have shown a steady increase, rising by 1.34 and 1.04 mag in 3.4 and 4.6 µm up to the end of 2016. The host-subtracted MIR peak luminosity is 2-3 x 1044 erg s–1. We interpret the MIR LCs as an infrared echo, i.e., dust reprocessed emission of the optical flare. Fitting the MIR LCs using our dust model, we infer a dust torus of the size of a few parsecs at some inclined angle. The derived dust temperatures range from 590-850 K, and the warm dust mass is ∼7 M☉. Such a large mass implies that the dust cannot be newly formed. We also derive the UV luminosity of 4-11 x 1044 erg s–1. The inferred total IR energy is 1-2 x 1052 erg, suggesting a large dust covering factor. Finally, our dust model suggests that the long tail of the optical flare could be due to dust scattering.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): black hole physics - galaxies: nuclei - infrared: galaxies - infrared: galaxies

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 IRAS 01003-2238 Sy2 01 02 49.9920152640 -22 21 57.262136544   18.62 18.9 17.83   ~ 192 0

Query : 2017ApJ...841L...8D

Basic data :
IRAS 01003-2238 -- Seyfert 2 Galaxy
Other object types: otypes_help 		H2G (), AGN (2019MNRAS,[VV2000c],...), G (LEDA,6dFGS,...), MIR (AKARI,WISEA,...), QSO (2016ApJ,QSO), IR (IRAS,PSCz), Sy2 (2010A&A), Sy1 (2022ApJS), * (Gaia), UV (GALEXASC), NIR (2MASS)
ICRS coord. (ep=J2000) : 		01 02 49.9920152640 -22 21 57.262136544 (Optical) [ 0.1511 0.1258 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		01 00 23.5882816083 -22 38 03.655502785 [ 0.1511 0.1258 90 ]
Gal coord. (ep=J2000) : 		152.0542204655994 -84.5808683589559 [ 0.1511 0.1258 90 ]
Proper motions mas/yr : 		-0.788 -0.415 [0.248 0.362 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 33250 [~] / z(emission) 0.117807 [~] / cz 35317.65 [~]
   (IR) C 2016ApJS..226...11S
Fluxes (7) :
B 18.62 [~] D 2009MNRAS.399..683J
V 18.9 [~] E ~
R 17.83 [~] D 2009MNRAS.399..683J
G 18.406029 [0.004973] C 2020yCat.1350....0G
J 16.08 [0.07] C 2003yCat.2246....0C
H 15.27 [0.08] C 2003yCat.2246....0C
K 14.27 [0.06] C 2003yCat.2246....0C
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 		Display criteria :

Identifiers (21) :
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LEDA 3095492 2MASS J01024998-2221572 [HSN2016] J015.70-22.36 EQ 0100-226
AKARI-IRC-V1 J0102500-222157 PSCz Q01003-2238 [VV2000c] J010249.9-222157 Gaia DR3 2352122591794199680
6dFGS gJ010250.0-222157 QSO J0102-2221 [VV2003c] J010249.9-222157 Gaia DR2 2352122591794199680
GALEXASC J010250.01-222157.4 TIC 268587874 [VV2006c] J010249.9-222157
IRAS F01004-2237 WISEA J010249.99-222157.2 [VV2010c] J010249.9-222157
IRAS 01003-2238 WISE J010249.98-222157.1 [VV98c] J010249.9-222157

References (192 between 1850 and 2026) (Total 192)
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 : 5    PM : 2   

   

Observing logs
Herschel : 4    ISO : 2   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : IRAS 01003-2238

Link by name to the catalogue in VizieR :

AKARI-IRC-V1 J0102500-222157 IRAS F01004-2237 IRAS 01003-2238 2MASS J01024998-2221572 WISEA J010249.99-222157.2
WISE J010249.98-222157.1 Gaia DR3 2352122591794199680 Gaia DR2 2352122591794199680

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