2023ApJ...957L..11G

Query : 2023ApJ...957L..11G

2023ApJ...957L..11G - Astrophys. J., 957, L11 (2023/November-1)

Quasi-simultaneous Optical Flux and Polarization Variability of the Binary Super Massive Black Hole Blazar OJ 287 from 2015 to 2023: Detection of an Anticorrelation in Flux and Polarization Variability.

GUPTA A.C., KUSHWAHA P., VALTONEN M.J., SAVCHENKO S.S., JORSTAD S.G., IMAZAWA R., WIITA P.J., GU M., MARSCHER A.P., ZHANG Z., BACHEV R., BORMAN G.A., GAUR H., GRISHINA T.S., HAGEN-THORN V.A., KOPATSKAYA E.N., LARIONOV V.M., LARIONOVA E.G., LARIONOVA L.V., MOROZOVA D.A., NAKAOKA T., STRIGACHEV A., TROITSKAYA Y.V., TROITSKY I.S., UEMURA M., VASILYEV A.A., WEAVER Z.R. and ZHOVTAN A.V.

Abstract (from CDS):

We study the optical flux and polarization variability of the binary black hole blazar OJ 287 using quasi-simultaneous observations from 2015 to 2023 carried out using telescopes in the USA, Japan, Russia, Crimea, and Bulgaria. This is one of the most extensive quasi-simultaneous optical flux and polarization variability studies of OJ 287. OJ 287 showed large amplitude, ∼3.0 mag flux variability, large changes of ∼37% in degree of polarization, and a large swing of ∼215° in the angle of the electric vector of polarization. During the period of observation, several flares in flux were detected. Those flares are correlated with a rapid increase in the degree of polarization and swings in electric vector of polarization angle. A peculiar behavior of anticorrelation between flux and polarization degree, accompanied by a nearly constant polarization angle, was detected from JD 2,458,156 to JD 2,458,292. We briefly discuss some explanations for the flux and polarization variations observed in OJ 287.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Blazars - Active galactic nuclei - BL Lacertae objects - Jets - Optical astronomy

Simbad objects: 6

goto Full paper

goto View the references in ADS

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 BD+64 106 ** 00 57 36.6894556320 +64 51 34.907455548 10.82 11.01   10.21   B1V 77 0
2 HD 236928 * 02 02 42.0929404728 +60 15 26.433482364   10.00 9.07     A4Ib 108 0
3 HD 14069 * 02 16 45.1936420248 +07 41 10.637150532   9.21 9.06     A0 61 0
4 PG 0851+202 BLL 08 54 48.8749846272 +20 06 30.639583620   15.649 15.146 15.446   ~ 2513 1
5 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
6 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1

To bookmark this query, right click on this link: simbad:objects in 2023ApJ...957L..11G and select 'bookmark this link' or equivalent in the popup menu