Photometric Monitoring of Blazar 3C 66A with the Yunnan University Astronomical Observatory 1 m Telescope  

作　　者：Wei Zeng Tao Wen Zhen-Lu Gong Shi Chen Fan Wu Hao-Yang Zhang Ben-Zhong Dai 

机构地区：[1]School of Physics&Astronomy,Yunnan University,Kunming 650091,China [2]Key Laboratory of Astroparticle Physics,Yunnan Province,Kunming 650091,China [3]Astronomical Observatory,Yunnan University,Kunming 650500,China

出　　处：《Research in Astronomy and Astrophysics》2023年第4期148-163,共16页天文和天体物理学研究（英文版）

基　　金：supported by the fund for the Youth Project of Basic Research Program of Yunnan Province (202001BB050012);the Joint Foundation of Department of Science and Technology of Yunnan Province and Yunnan University (202201BF070001-020);funded by the“Yunnan University Development Plan for World-Class Astronomy Discipline”。

摘　　要：3C 66A is one of our first batches of photometric monitoring objects with the 1 m optical telescope at Yunnan University Astronomical Observatory.In the present work,the observational campaign was performed from 2021 November 1 to 2022 February 27 in the Johnson-Morgan system V and R bands.The average magnitudes in each band were■=15.52±0.18 mag and■=15.07±0.17 mag.The overall variability amplitudes wereΔV=■,Amp=70.27%andΔR=■,Amp=68.56%,respectively.Most of the intraday variabilities(IDVs)occurred in 2021 December and 2022 February.The minimal rise/decay timescale was about 6 minutes(5.82±2.74 minutes and 6.18±2.81 minutes on 2022 February 11,6.99±3.70 minutes and 6.17±2.91 minutes on 2022 February 12).Durations of these rapid variabilities were from 11.99 to 179.67 minutes.The discrete correlation function analyses between V and R bands showed significantly correlated variability.Color index analysis of ID Vs showed that the spectrums do not change with variabilities.

关 键 词：(galaxies:)BL Lacertae objects individual(3C 66A)-galaxies photometry-galaxies active 

分 类 号：P111.2[天文地球—天文学] P157.6