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BL Lac天体1ES 1959＋650的长周期光变研究
  • ISSN号：0001-5245
  • 期刊名称：《天文学报》
  • 时间：0
  • 分类：P157[天文地球—天文学]
  • 作者机构：[1]广州大学实验中心,广州510006
  • 相关基金：国家自然科学基金项目（10633010）资助
作者： 袁聿海[1], 刘福庆[1]
关键词： 蝎虎天体:个别ES, 1959+650, 方法:数值, BL Lacertae objects： individual： 1ES 1959＋650, methods： numerical
中文摘要：

根据芬兰Tuorla天文台的光学观测数据，采用功率谱方法、DCF（Discrete Correlation Function）方法和Jurkevich3种方法，获得BLLac星系1ES1959＋650的长期光变周期是P：1．4±0．3yr．假定该周期来源与吸积盘有关，可以得到该源的不稳定性发生的区域是R=9．65R。（Rg是席瓦西半径）．

英文摘要：

In this paper, the long-term observations of Tuorla Observatory in Finland are collected. The power spectrum, the DCF （Discrete Correlation Function） method, and the Jurkevich method are used to analyze the periodicity. The results show that the periodicity of BL Lac Object 1ES 1959＋650 is P = 1.4 ± 0.3 yr. Considering that there is a relation between the origin of periodicity and accretion disk, we use this periodicity to obtain the unstable region lying at R = 9.65Rg, where Rg represents the Schwarzschild radius.

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期刊信息
  • 《天文学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国天文学会 中国科学院紫金山天文台
  • 主编：甘为群
  • 地址：南京市栖霞区元化路8号
  • 邮编：210023
  • 邮箱：twxb@pmo.ac.cn
  • 电话：025-83332133
  • 国际标准刊号：ISSN：0001-5245
  • 国内统一刊号：ISSN：32-1113/P
  • 邮发代号:2-818
  • 获奖情况:
  • 1992年获中国科协优秀期刊三等奖,1996年获中国科学院优秀期刊三等奖,2000年获中国科协优秀期刊三等奖,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:1792