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河外水脉泽寄主星系的射电谱指数(英文)
  • ISSN号：1000-8349
  • 期刊名称：《天文学进展》
  • 时间：0
  • 分类：P157.2[天文地球—天文学]
  • 作者机构：[1]广州大学天体物理中心
  • 相关基金：Supported by National Natural Science Foundation of China(10633010);; Natural Science Foundation of Guangdong Province, China(8451009101001047)
作者： 张江水[1], 黄峰[1], 郭仟[1]
关键词： 河外, 脉泽, 谱指数, extragalactic, maser, spectral index
中文摘要：

详细调研并收集了所有河外水脉泽寄主星系的射电观测资料(84个源).在6cm和20cm两个波段,'千脉泽'(其光度小于10个太阳光度)源的射电流量都大于'兆脉泽'源(其光度大于10个太阳光度).由收集的这两个波段的观测数据,首次导出了水脉泽星系的射电谱指数,α=0.87±0.11.比较水脉泽星系和没有检测到水脉泽的星系的谱指数,没有发现明显的差异.进一步分析水脉泽各向同性辐射光度与脉泽寄主星系射电强度,发现它们之间存在一个强相关,这与水脉泽辐射可能是对背景射电连续谱的放大的理论结果相吻合.

英文摘要：

The whole extragalactic H2O maser sample (84 sources) is compiled and the radio observation data of their host galaxies are investigated in detail and collected here. Our kilo-maser (LH2O<10L⊙) subsample shows higher radio flux at both 6 cm and 20 cm than mega-maser sources (LH2O<10L⊙). From both radio data,the radio spectral index of 6 cm and 20 cm is derived firstly for those sources with available observation data,α=0.87±0.11. No significant difference of the spectral index can be found between our...

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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