天文学报
天文學報
천문학보
ACTA ASTRONOMICA SINICA
2000年
4期
400-409
,共10页
活动星系核%射电星系%多波段性质
活動星繫覈%射電星繫%多波段性質
활동성계핵%사전성계%다파단성질
active galactic nucleus%radio galaxy%multiwavelength property
基于被ROSAT全天区巡天观测和射电4.85GHz巡天观测同时探测到的活动星系核的大样本,研究了X射线选的射电噪活动星系核的多波段性质.通过分析该样本中的活动星系核的宽波段能量分布,确认了来自射电、光学和X射线波段的辐射光度之间的显著相关性.这种相关性对于类星体、赛弗特、蝎虎座天体和射电星系是有区别的.同时,探讨了从光学到X射线波段之间的谱指数与红移以及5000A和4.85GHz处的单色光度的相关性.
基于被ROSAT全天區巡天觀測和射電4.85GHz巡天觀測同時探測到的活動星繫覈的大樣本,研究瞭X射線選的射電譟活動星繫覈的多波段性質.通過分析該樣本中的活動星繫覈的寬波段能量分佈,確認瞭來自射電、光學和X射線波段的輻射光度之間的顯著相關性.這種相關性對于類星體、賽弗特、蝎虎座天體和射電星繫是有區彆的.同時,探討瞭從光學到X射線波段之間的譜指數與紅移以及5000A和4.85GHz處的單色光度的相關性.
기우피ROSAT전천구순천관측화사전4.85GHz순천관측동시탐측도적활동성계핵적대양본,연구료X사선선적사전조활동성계핵적다파단성질.통과분석해양본중적활동성계핵적관파단능량분포,학인료래자사전、광학화X사선파단적복사광도지간적현저상관성.저충상관성대우류성체、새불특、갈호좌천체화사전성계시유구별적.동시,탐토료종광학도X사선파단지간적보지수여홍이이급5000A화4.85GHz처적단색광도적상관성.
This paper presents a study on the multiwavelength properties of the X-ray selected radio-loud Active Galactic Nuclei (AGNs), based on a large sample of AGNs detected both by the ROSAT All-Sky Survey and the radio surveys at 4.85GHz frequency.The broad band energy distribution of the AGNs in the authors' sample is shown. They confirm the presence of strong correlations between the luminosities emitted from the radio,optical, and X-ray bands which differ for quasars, Seyferts, BL Lacs, and radio galaxies.The correlations of the spectral index between the optical and X-ray bands, with the redshift and monochromatic luminosities at 5500A and 4.85GHz, are also investigated.