在很多低/硬态X射线双星系统(XRB)中，射电和X射线光度之间存在较好的相关关系. Dong等人通过研究得出了射电静类星体(RQQ)也存在着这一关系，并且其关系式与低/硬态X射线双星的基本面关系有着一定的相似度.分析收集的射电噪类星体来探究射电噪类星体是否也存在着这种关联，这些源包含了255个射电噪类星体.分析结果表明：(1)255个射电噪类星体(RLQ)的黑洞质量与X射线和射电光度之间以及射电光度爱丁顿比率和X射线爱丁顿比率之间均存在相关性，这与Dong等人运用亮硬态黑洞双星和射电噪类星体所得出的基本面关系式有一定的相似性，但仍然存在一定差异.(2)低/硬态X射线双星与射电噪类星体的基本面关系式可统一为lg LR =0.998+0.045−0.045lg LX +0.592+0.049−0.049lg MBH −6.56+1.605−1.605(其中LR为射电光度， LX为X射线光度， MBH为黑洞质量).(3)研究结果进一步证明了X射线和射电光度与黑洞质量所构成的基本面关系式具有高度的统一性，不仅可用于描述低/硬态X射线双星系统和射电静类星体，同样可用于射电噪类星体.%Several X-ray binaries (X-ray binaries) in low/hard state that follow a track of radio-X-ray correlation have been found in recent years. Dong et al. also found this relation in RQQs (radio quiet quasars). Black hole accretion and jet formation are scale invariants which form the fundamental plane of black hole activity. It is a plane given in the space of the black hole mass and the radio/X-ray luminosities. In this paper, we compile a sample of radio loud active galactic nuclei and find that: (1) The hard X-ray photon indices and Eddington ratios of our sample are positively correlated, similar to XRBs. The Eddington-scaled radio-X-ray correlation of our sample also has that of outliers. A radiatively efficient accretion flow can regulate the positively correlated X-ray spectral evolution and the steep radio-X-ray correlation. (2) We can present a fundamental plane for XRBs. Several XRBs and radio-loud quasars (RLQs) have similarities in the relation formed by the black-hole mass, radio and X-ray luminosities. The fundamental plane is lg LR = 0.998+0.045−0.045lg LX+0.592+0.049−0.049lg MBH−6.56+1.605−1.605 where LR is the radio luminosity, LX is the X-ray luminosity, and MBH is the black hole mass. (3) The plane can be suitable for the RLQ black hole sources. And the X-ray binaries also agree to the relation.
展开▼
