The periodicity of 3C 273's radio light curve at 15 GHz found by the wavelet method  

作　　者：ZHANG HaoJing1,2,ZHAO Gang1,ZHANG Xiong3 & BAI JinMing4 1 National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100012,China 2 Graduate University of Chinese Academy of Sciences,Beijing 100049,China 3 Department of Physics,Yunnan Normal Univeristy,Kunming 650092,China 4 National Astronomical Observatories/Yunnan Observatory,Chinese Academy of Sciences,Kunming 650011,China 

出　　处：《Science China(Physics,Mechanics & Astronomy)》2010年第S1期252-255,共4页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 10821061,10763002,and 10663002);the National Basic Research Program of China (Grant No. 2009CB824800)

摘　　要：We analyze the radio light curve of 3C 273 at 15 GHz from 1963 to 2006 taken from the database of the literature,and find evidence of quasi-periodic activity.Using the wavelet analysis method to analyze these data,our results indicate that:(1) There is one main outburst period of P1=8.1±0.1 year in 3C 273.This period is in a good agreement with Ozernoi's analysis in optical bands.(2) Based on the possible periods,we expect the next burst in 2014 October.We analyze the radio light curve of 3C 273 at 15 GHz from 1963 to 2006 taken from the database of the literature,and find evidence of quasi-periodic activity.Using the wavelet analysis method to analyze these data,our results indicate that:(1) There is one main outburst period of P1=8.1±0.1 year in 3C 273.This period is in a good agreement with Ozernoi’s analysis in optical bands.(2) Based on the possible periods,we expect the next burst in 2014 October.

关 键 词：QUASAR object individual(3C 273) RADIO band’s PERIODICITY analysis WAVELET method 

分 类 号：P172.4[天文地球—天文学]