SIMBAD references

2008AJ....135..737T - Astron. J., 135, 737-746 (2008/February-0)

Optical monitoring of 3C 390.3 from 1995 to 2004 and possible periodicities in the historical light curve.

TAO J., FAN J., QIAN B. and LIU Y.

Abstract (from CDS):

We report V, R, and I band CCD photometry of the radio galaxy 3C 390.3 obtained with the 1.56 m telescope of the Shanghai Astronomical Observatory from 1995 March to 2004 August. Combining these data with data from the literature, we have constructed a historical light curve from 1894 to 2004 and searched for periodicities using the CLEANest program. We find possible periods of 8.30±1.17, 5.37±0.49, 3.51±0.21, and 2.13±0.08 yr.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: individual: 3C 390.3 - galaxies: photometry - galaxies: Seyfert - methods: data analysis

Simbad objects: 14

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2020.01.29-02:32:02

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