C/2015 O1: A long-period comet with photometric observations  

作　　者：Xuan Zhang Jin-Zhong Liu Ya-Hui Wang Li-Na Lu 

机构地区：[1]Xinjiang Astronomical Observatory, Chinese Academy of Sciences [2]School of Physical Science and Technology, Xinjiang University [3]University of Chinese Academy of Sciences

出　　处：《Research in Astronomy and Astrophysics》2019年第5期27-30,共4页天文和天体物理学研究（英文版）

基　　金：supported by the program of the light in China’s Western Region (LCWR, Grant No. 2015XBQN-A-02);the National Natural Science Foundation of China (Grant No. 11661161016);the 13th Five-year Informatization Plan of Chinese Academy of Sciences (Grant No. XXH13503–03–107);the Youth Innovation Promotion Association CAS (Grant No. 2018080);the Talent Importing Program offered by the government of Xinjiang Uygur Autonomous Region

摘　　要：In this work, we report the observations of the long-period comet C/2015 O1 performed on2018 January 29–30 and April 13 with the Nanshan 1-meter wide-field telescope operated by Xinjiang Astronomical Observatory. We obtain the morphological features of C/2015 O1 using an image enhancement method, and calculate the dust-activity parameter Afρ and the coma color based on photometric analysis. An obvious fan-shaped structure was observed at different observation times. We find that the activity of C/2015 O1 gradually decreases as the comet advances toward perihelion and the observed B-V and V-R colors are consistent with those of other comets.In this work, we report the observations of the long-period comet C/2015 O1 performed on2018 January 29–30 and April 13 with the Nanshan 1-meter wide-field telescope operated by Xinjiang Astronomical Observatory. We obtain the morphological features of C/2015 O1 using an image enhancement method, and calculate the dust-activity parameter Afρ and the coma color based on photometric analysis. An obvious fan-shaped structure was observed at different observation times. We find that the activity of C/2015 O1 gradually decreases as the comet advances toward perihelion and the observed B-V and V-R colors are consistent with those of other comets.

关 键 词：comets general-comets individual(C/2015 O1) 

分 类 号：P[天文地球]