The masses of black holes in the nuclei of spirals
The masses of black holes in the nuclei of spirals
复制标题
螺旋核中的黑洞质量
DOI：
10.1046/j.1365-8711.2000.03622.x
复制
发表时间：
1998
影响因子：
4.8
通讯作者：
Cambridge
中科院分区：
文献类型：
--
作者：
P. Salucci;Charu Ratnam;P. Monaco;Luigi Danese Sissa Indian Institute Of Astrophysics IoA;Cambridge
我们利用螺旋最内部的运动学来研究这些星系是否可以容纳曾经为类恒星物体（QSO）现象提供动力的巨大黑洞遗迹。数百条早期和晚期螺旋的旋转曲线被用来设定中心黑洞（BH）质量的上限。我们发现（i）在晚期型螺旋中，中心大质量暗天体（MDO）比在椭圆形中检测到的 MDO 小约 10-100 倍；（ii）在早期型螺旋中，中心天体可能与椭圆形 MDO 处于相同的质量范围。因此，最终托管在螺旋中的 BH 残余物对 QSO/活动星系核 (AGN) 现象的贡献可以忽略不计：BH(Sb-Im)<6 104 M Mpc 3。我们发现了一些迹象，表明螺旋中的 MDO 质量与核球质量关系比椭圆中的明显更陡，尽管晚期哈勃型天体是否存在这种关系的问题仍然悬而未决。晚型螺旋中的 BH 质量上限非常严格：MBH 106-107 M，这表明这些天体中可能只发生了低光度活动。
We use the innermost kinematics of spirals to investigate whether these galaxies could host the massive black hole remnants that once powered the quasi-stellar object (QSO) phenomenon. Hundreds of rotation curves of early- and late-type spirals are used to place upper limits on the central black hole (BH) masses. We find that (i) in late-type spirals, the central massive dark objects (MDOs) are about 10-100 times smaller than the MDOs detected in ellipticals, and (ii) in early-type spirals, the central bodies are likely to be in the same mass range as the elliptical MDOs. As a consequence, the contribution to the QSO/active galactic nuclei (AGN) phenomenon by the BH remnants eventually hosted in spirals is negligible: BH(Sb-Im)<6 104 M Mpc 3. We find several hints that the MDO mass versus bulge mass relationship is significantly steeper in spirals than in ellipticals, although the very issue of the existence of such a relation for late Hubble type objects remains open. The upper limits on the masses of the BHs resident in late-type spirals are stringent: MBH 106-107 M , indicating that only low-luminosity activity could possibly have occurred in these objects.