The Optical Variability of 3C 273  

作　　者：Rui-Guang Lin (Center for Astrophysics, Guangzhou University, Guangzhou 510400) E-mail: [e-mail] 

出　　处：《Chinese Journal of Astronomy and Astrophysics》2001年第3期245-249,共5页中国天文和天体物理学报（英文版）

基　　金：the National Natural Science Foundation of China(19973001); the National 973 Project of China(NKBRAF G19990754)

摘　　要：B-band measurements of 3C273 over some 110 years are compiled and used in a search for periodicities using the Jurkevich method. Periods of 2.0, 13.65±0.20 and 22.5±0.2yr are found. If the long-term periodicity is from the instability of a slim disk, then the periodicity (~ 13yr or ~ 22-yr) suggests masses of 107M for the central black holes.B-band measurements of 3C273 over some 110 years are compiled and used in a search for periodicities using the Jurkevich method. Periods of 2.0, 13.65±0.20 and 22.5±0.2yr are found. If the long-term periodicity is from the instability of a slim disk, then the periodicity (~ 13yr or ~ 22-yr) suggests masses of 107M for the central black holes.

关 键 词：Galaxies: active - Galaxies: individual: 3C273 

分 类 号：P144[天文地球—天体物理]