SIMBAD references

2007AJ....133.1995Z - Astron. J., 133, 1995-2000 (2007/May-0)

CCD photometry and optical variability of gamma-ray-loud BL Lacertae object OJ 287 in a low, fainter state.

ZHANG X., ZHAO G., ZHENG Y.G., MA L., XIE Z.H. and HU S.M.

Abstract (from CDS):

We present optical photometry (V, R, and I) of the BL Lac object OJ 287 (0851+203, z=0.306), which was observed in a low, fainter state with the 1 m telescope at Yunnan Astronomical Observatory. Our results show significant short-term variability in the R band over 31 minutes. We find a strong correlation between the V-R color index and the magnitude in the R band. Our CCD photometry of OJ 287 is in good agreement with the prediction of Sillanpää and coworkers of an optical variability period of about 11.6 yr.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: BL Lacertae Objects: Individual: Alphanumeric: OJ 287 - Galaxies: Active - Galaxies: Photometry

CDS comments: Par. 3 : OJ 131 is a misprint for -131 (OHIO J -131). Par. 4 : 2200+230 misprint for ?

Simbad objects: 10

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2007AJ....133.1995Z and select 'bookmark this link' or equivalent in the popup menu