Optical Photometrical Observations of 3C273

Details Optical Photometrical Observations of 3C273 Optical Photometrical Observations of 3C273

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..408..306f&link_type=abstract

The Starburst-AGN Connection. ASP Conference Series, Vol. 408, proceedings of the conference held 27-31 October 2008, at Shangha

Astronomy and Astrophysics

Astronomy

Scientific paper

The quasar 3C273 is one of selected targets in our monitoring program. In this paper, we present the optical V, R and I photometric observations done with the 1.56 m telescope at the Shanghai Astronomical Observatory (ShAO) from 2000 to 2008. Our observations indicate that the variations in the three bands are Δ I = 1.04± 0.14 mag,
Δ R = 1.30± 0.15 mag and Δ V = 1.42± 0.20 mag, a micro-variation of 0.18 mag over 2.1hrs is detected in R band. The color indices are in the ranges: V-R = 0.09 to 0.55, V-I = 0.33 to 1.13, and R-I=0.12 to 0.73, and their averages are: V-R=0.30± 0.10,V-I=0.73± 0.16, R-I=0.42± 0.12.

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