射电类星体黑洞质量和射电特性的研究

发布时间：2018-01-07 15:19

本文关键词：射电类星体黑洞质量和射电特性的研究　出处：《天文学报》2012年05期 　论文类型：期刊论文

【摘要】：收集了117个类星体(20个射电宁静类星体和97个射电噪类星体)的红移、热光度、H_β发射线宽度、5 100 A的单色光度、射电噪度.利用反响映射法计算了样本的黑洞质量和爱丁顿比,利用总的5 GHz流量密度计算出射电光度.分析了它们之间的相关性,得到的结论如下:(1)射电宁静类星体的黑洞质量和热光度、射电噪度、射电光度之间具有弱相关性,而射电噪类星体黑洞质量和热光度、射电噪度、射电光度之间具有强相关性;(2)射电宁静类星体热光度和射电光度、5 100 A的单色光度之间具有弱的相关性,而射电噪类星体热光度和射电光度、5 100 A的单色光度之间具有强的相关性;(3)射电宁静和射电噪类星体的黑洞质量、发射线宽度和爱丁顿比分布有差异.基于这些结果得到:射电宁静和射电噪类星体发射线宽度的差异可能是导致它们黑洞质量不同的原因;射电宁静和射电噪类星体本质的不同是由于内秉物理性质的不同造成的;黑洞质量、黑洞自旋、爱丁顿比和寄主星系形态是解释射电噪度起源和双峰状分布的重要参量;射电喷流和盘的吸积率之间具有紧密的关系.
[Abstract]:A collection of 117 quasars (20 radio quiet quasars and 97 radio loud quasars) the redshift, the bolometric luminosity of H_ beta rays width 5100 A monochromatic luminosity, radio loudness. The black hole mass than the sample and Eddington are calculated by using the response mapping method, using a total of 5 GHz flow the calculated density of radio luminosity was analyzed. The relationship between them, the conclusions are as follows: (1) radio quiet quasars black hole mass and bolometric luminosity, loudness, has a weak correlation between the radio luminosity and radio loud quasars, black hole mass and bolometric luminosity, radio noise, the strong correlation of radio luminosity between; (2) radio quiet quasars thermal luminosity and radio luminosity has a weak correlation between the color, the intensity of 5100 A, and radio loud quasars and radio luminosity thermal luminosity, has a strong correlation between the color intensity of 5100 A; (3) quiet radio and radio noise The quality of black holes, quasars, emission line width and Eddington are different than distribution. Based on these results: the difference of quiet radio and radio loud quasars emission line width may be the cause of their black hole mass different; quiet radio and radio loud quasars with nature is due to intrinsic physical properties caused by different the black hole; black hole mass, spin, and Eddington than the host galaxy morphology is an important parameter to explain the origin of Shuangfeng radio loudness and distribution; with the close relationship between the accretion disk and the radio jet rate.

【作者单位】：云南师范大学物理与电子信息学院;
【基金】：国家自然科学基金项目(11163007) 云南省引力理论创新团队云南省高校高能天体物理创新团队资助
【分类号】：P158
【正文快照】： 1引言类星体的射电辐射和其它波段的辐射相比有很大差别，按照射电辐射强度的不同可以将类星体分为射电噪类星体和射电宁静类星体，它们之间的射电辐射强度相差几个数量级.一般来说，用射电噪度R一10或5 GHz射电光度等于1024W·Hz一‘·Sr一‘来区分射电噪类星体和射电宁静类

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