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.
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
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)
