2014MNRAS.445.1636R


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.14CET00:36:24

2014MNRAS.445.1636R - Mon. Not. R. Astron. Soc., 445, 1636-1646 (2014/December-1)

The connection between the parsec-scale radio jet and γ-ray flares in the blazar 1156+295.

RAMAKRISHNAN V., LEON-TAVARES J., RASTORGUEVA-FOI E.A., WIIK K., JORSTAD S.G., MARSCHER A.P., TORNIKOSKI M., AGUDO I., LAHTEENMAKI A., VALTAOJA E., ALLER M.F., BLINOV D.A., CASADIO C., EFIMOVA N.V., GURWELL M.A., GOMEZ J.L., HAGEN-THORN V.A., JOSHI M., JARVELA E., KONSTANTINOVA T.S., KOPATSKAYA E.N., LARIONOV V.M., LARIONOVA E.G., LARIONOVA L.V., LAVONEN N., MacDONALD N.R., McHARDY I.M., MOLINA S.N., MOROZOVA D.A., NIEPPOLA E., TAMMI J., TAYLOR B.W. and TROITSKY I.S.

Abstract (from CDS):

The blazar 1156+295 was active at γ-ray energies, exhibiting three prominent flares during the year 2010. Here, we present results using the combination of broad-band (X-ray through mm single-dish) monitoring data and radio-band imaging data at 43GHz on the connection of γ-ray events to the ejections of superluminal components and other changes in the jet of 1156+295. The kinematics of the jet over the interval 2007.0-2012.5 using 43GHz Very Long Baseline Array observations reveal the presence of four moving and one stationary component in the inner region of the blazar jet. The propagation of the third and fourth components in the jet corresponds closely in time to the active phase of the source in γ-rays. We briefly discuss the implications of the structural changes in the jet for the mechanism of γ-ray production during bright flares. To localize the γ-ray emission site in the blazar, we performed the correlation analysis between the 43GHz radio core and the γ-ray light curve. The time lag obtained from the correlation constrains the γ-ray emitting region in the parsec-scale jet.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): galaxies: active - galaxies: jets - quasars: individual: 1156+295 - gamma-rays: galaxies - radio continuum: galaxies

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 3C 84 Sy2 03 19 48.1597607660 +41 30 42.114155434   13.10 12.48 11.09   ~ 3470 3
2 3C 111 Sy1 04 18 21.2773655604 +38 01 35.801523843   19.75 18.05     ~ 841 1
3 Mrk 1506 Sy1 04 33 11.0958197353 +05 21 15.617543663   15.72 15.05 10.08   ~ 1814 2
4 QSO J0854+2006 BLL 08 54 48.8749311881 +20 06 30.642936668   15.91 15.43 15.56   ~ 1950 1
5 Ton 599 QSO 11 59 31.83390975 +29 14 43.8268741   14.80 14.41 17.652 13.39 ~ 782 1
6 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5254 1
7 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6048 3
8 3C 345 QSO 16 42 58.8100340220 +39 48 36.999540578   16.81 16.59 16.84   ~ 1534 2
9 GRS G081.70 +00.50 SFR 20 39 01.6 +42 19 38           O4.5 932 0
10 NGC 7027 PN 21 07 01.8 +42 14 10   9.1 10.9     ~ 2304 1
11 4C 11.69 QSO 22 32 36.40890517 +11 43 50.9040717   17.75 17.33     ~ 934 2
12 3C 454.3 QSO 22 53 57.74798 +16 08 53.5611   16.57 16.10 15.22   ~ 2448 2

    Equat.    Gal    SGal    Ecl

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2019.12.14-00:36:24

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