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耀变体的峰频估计
  • ISSN号：1000-8349
  • 期刊名称：《天文学进展》
  • 时间：0
  • 分类：P157.7[天文地球—天文学]
  • 作者机构：[1]广州大学物理与电子工程学院,广东广州510006, [2]广州大学天体物理中心,广东广州510006, [3]广东省教育厅天文科学与技术实验室,广东广州510006, [4]湖南文理学院物理与电子科学学院,湖南常德415000
  • 相关基金：国家自然科学基金(U1531245,U1431112,11203007,11403006,10633010,11173009);广州大学创新基金(IFGZ);广东省珠江学者项目(GDUPS)(2009);羊城学者(10A027S);广东省和广州市重点学科;广东省创新团队(2014KCXTD014).
作者： 张丽霞[1], 林潮[1,2,3], 樊军辉[1,2,3], 杨江河[4]
关键词： 活动星系核, 耀变体, 同步峰频, active galactic nuclei, blazar, synchrotron peak frequency
中文摘要：

收集了60个耀变体样本,考察了有效谱指数(αRO,αOX和αRX)与同步峰频(logvps)之间的关系。斯皮尔曼秩检验的结果显示有效谱指数与同步峰频之间有很好的反相关。根据两者的相关给出了同步峰频与有效谱指数关联的经验公式。通过该公式用αRO和αOX估算了耀变体的同步峰频,所得结果与文献的经验公式结果进行了比较,发现本文公式的结果更精确。

英文摘要：

A sample of60blazars is collected to investigate the correlation between the effective spectral indexes(αRO,αOX,andαRX)and the synchrotron peak frequency(logvps).The Spearman rank correlation analysis resultsindicate that there are strong anti-correlations between the effective spectral indexes and the synchrotron peakfrequency,and those relations mainly follow the blazar sequence.Then,a new empirical relationship between thesynchrotron peak frequency(logvps)and the effective spectral indexes(αRO andαOX)is obtained.The empiricalrelationship can be used to estimate logvps of blazars using the correspondingαRO andαOX.Comparing of the peakfrequency estimated by present empirical relationship with those of previous works,it is found out that presentempirical relationship is more accurate than theirs.

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期刊信息
  • 《天文学进展》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国科学院上海天文台 中国天文学会
  • 主编：沈志强
  • 地址：上海市南丹路80号406
  • 邮编：200030
  • 邮箱：twxjz@shao.ac.cn
  • 电话：021-34775108
  • 国际标准刊号：ISSN：1000-8349
  • 国内统一刊号：ISSN：31-1340/P
  • 邮发代号:4-819
  • 获奖情况:
  • 1996年在第2届上海市优秀科技期刊评比中获得3等奖...,获得2011年上海市新闻出版局组织的期刊审读优秀奖
  • 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:1404