2015MNRAS.454.4277B

Query : 2015MNRAS.454.4277B

2015MNRAS.454.4277B - Mon. Not. R. Astron. Soc., 454, 4277-4281 (2015/December-3)

Milimetre-band variability of the radio-quiet nucleus of NGC 7469.

BALDI R.D., BEHAR E., LAOR A. and HORESH A.

Abstract (from CDS):

We report short-cadence monitoring of a radio-quiet (RQ) Active Galactic Nuclei (AGN), NGC 7469, at 95 GHz (3 mm) over a period of 70 d with the CARMA telescope. The AGN varies significantly (±3σ from the mean) by a factor of 2 within 4-5 d. The intrinsic 95 GHz variability amplitude in excess of the measurement noise (10 per cent) and relative to the mean flux is comparable to that in the X-rays, and much higher than at 8.4 GHz. The mm-band variability and its similarity to the X-ray variability adds to the evidence that the mm and X-ray emission have the same physical origin, and are associated with the accretion disc corona.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): galaxies: active - galaxies: individual: NGC7469 - galaxies: jets - galaxies: nuclei - radio continuum: galaxies - X-rays: galaxies

Simbad objects: 6

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Number of rows : 6
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 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
2 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3
3 EM* MWC 349 ** 20 32 45.499080 +40 39 36.74124   15.88 13.15 12.13   Bep 837 0
4 4C -03.79 Bla 22 18 52.03772044 -03 35 36.8795441   16.93 16.38 16.15   ~ 353 1
5 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 3004 2
6 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2253 3

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