2017ApJ...844...21I

Query : 2017ApJ...844...21I

2017ApJ...844...21I - Astrophys. J., 844, 21-21 (2017/July-3)

Cooling timescale of dust tori in dying active galactic nuclei.

ICHIKAWA K. and TAZAKI R.

Abstract (from CDS):

We estimate the dust torus cooling timescale once the active galactic nucleus (AGN) is quenched. In a clumpy torus system, once the incoming photons are suppressed, the cooling timescale of one clump from T_dust = 1000 K to several 10 K is less than 10 years, indicating that the dust torus cooling time is mainly governed by the light crossing time of the torus from the central engine. After considering the light crossing time of the torus, the AGN torus emission at 12 µm becomes over two orders of magnitude fainter within 100 years after the quenching. We also propose that those "dying" AGNs could be found using the AGN indicators with a different physical scale R such as 12 µm band luminosity tracing AGN torus (R ∼ 10 pc) and the optical [O III]λ5007 emission line tracing narrow line regions (R = 10^2–4 pc).

Journal keyword(s): galaxies: active - galaxies: nuclei - infrared: galaxies - infrared: galaxies

Simbad objects: 1

Full paper

View the references in ADS

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	IC 2479	GiG	09 28 04.0917846744	+29 59 29.250879792		15.5				~	24	0

Query : 2017ApJ...844...21I

Basic data :

IC 2479 -- Galaxy towards a Group of Galaxies

G (2014ApJ,AGC,...), GiG (SDSSCGB), GrG (RASSCALS), * (Gaia), Opt (SDSS)

09 28 04.0917846744 +29 59 29.250879792 (Optical) [ 1.2515 0.9812 90 ] C 2020yCat.1350....0G

09 25 06.3178952724 +30 12 35.069314597 [ 1.2515 0.9812 90 ]

196.7015068044082 +45.6162021676398 [ 1.2515 0.9812 90 ]

V(km/s) 8183 [3] / z(spectroscopic) 0.02768 [0.00001] / cz 8298.3 [3.0] (Opt) C 2020ApJS..249....3A

Sb D 2008ApJS..175...86P

0.597287 0.314113 152 (Opt) B 2023ApJS..269....3M

B 15.5 [~] D 1999PASP..111..438F

G 19.719589 [0.019945] C 2020yCat.1350....0G

J 13.106 [0.051] C 2006AJ....131.1163S

H 12.401 [0.065] C 2006AJ....131.1163S

K 12.032 [0.088] C 2006AJ....131.1163S

u (AB) 16.472 [0.009] B 2020ApJS..249....3A

g (AB) 15.361 [0.003] B 2020ApJS..249....3A

r (AB) 14.836 [0.002] B 2020ApJS..249....3A

i (AB) 14.554 [0.003] B 2020ApJS..249....3A

z (AB) 14.341 [0.004] B 2020ApJS..249....3A

Overlay

points in this preview

2MASS DSS

All

(CDSPortal)

Send to

Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

An access of full data is available using the icon Vizier near the identifier of the catalogue

`IC 2479`	`2MASX J09280405+2959294`	`SDSS J092804.09+295929.1`	`Z 152-8`
`AGC 190303`	`MCG+05-23-002`	`SDSS J092804.08+295929.1`	`Z 0925.1+3014`
`DOC NRGb043.15`	`RASSCALS NRGb043.014`	`UZC J092804.1+295929`	`Gaia DR2 697260388292393344`
`LEDA 26866`	`SDSSCGB 34009.1`	`Z 151-89`	`Gaia DR3 697260388292393344`

References (24 between 1850 and 2026) (Total 24)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).

Follow new references on this object

Collections of Measurements

External archives :

Data at NED - NASA/IPAC Extragalactic Database : IC 2479

Link by name to the catalogue in VizieR :

2MASX J09280405+2959294 SDSS J092804.09+295929.1 SDSS J092804.08+295929.1 Gaia DR2 697260388292393344 Gaia DR3 697260388292393344

Search by coordinates in Vizier (radius: 5 arcsec)

Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description .
Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .

The annotation server is currently not available. Sorry for any inconvenience

To bookmark this query, right click on this link: simbad:objects in 2017ApJ...844...21I and select 'bookmark this link' or equivalent in the popup menu