2011A&A...528L..10B


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.22CET14:52:13

2011A&A...528L..10B - Astronomy and Astrophysics, volume 528, L10-10 (2011/4-1)

Intranight variability of 3C 454.3 during its 2010 November outburst.

BACHEV R., SEMKOV E., STRIGACHEV A., MIHOV B., GUPTA A.C., PENEVA S., OVCHAROV E., VALCHEVA A. and LALOVA A.

Abstract (from CDS):

3C 454.3 is a very active flat spectrum radio quasar (blazar) that has undergone a recent outburst in all observed bands, including the optical. In this work we explore the short-term optical variability of 3C 454.3 during its outburst by searching for time delays between different optical bands. Finding one would be important for understanding the evolution of the spectrum of the relativistic electrons, which generate the synchrotron jet emission. We performed photometric monitoring of the object by repeating exposures in different optical bands (BVRI). Occasionally, different telescopes were used to monitor the object in the same band to verify the reliability of the smallest variations we observed. Except on one occasion, where we found indications of a lag of the blue wavelengths behind the red ones, the results are inconclusive for most of the other cases. There were either no structures in the light curves to be able to search for patterns, or else different approaches led to different conclusions.

Abstract Copyright:

Journal keyword(s): BL Lacertae objects: individual: 3C 454.3 - quasars: general - galaxies: jets

Simbad objects: 3

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Number of rows : 3

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 6C 101157+494057 BLL 10 15 04.1393763275 +49 26 00.708524180   16.56 16.15 14.58   ~ 293 2
2 3C 279 QSO 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2639 2
3 3C 454.3 QSO 22 53 57.74798 +16 08 53.5611   16.57 16.10 15.22   ~ 2442 2

    Equat.    Gal    SGal    Ecl

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2019.11.22-14:52:13

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