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arXiv 2104.01498astro-ph.HE
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潮汐破裂事件3XMM J215022中中等质量黑洞的质量、自旋和超轻玻色子约束。

Mass, Spin, and Ultralight Boson Constraints from the Intermediate Mass Black Hole in the Tidal Disruption Event 3XMM J215022.4-055108

Sixiang Wen, Peter G. Jonker, Nicholas C. Stone, Ann I. Zabludoff

摘要:

我们同时成功地拟合了潮汐破裂事件(TDE)3XMM J215022.4-055108的多历元X射线光谱,使用了我们的相对论细长盘模型的修改版本,该模型现在考虑了辐射的角动量损失。我们探讨了不同的磁盘属性和光谱硬化因子fc和红移z的不确定性对估计黑洞质量M和自旋a的影响。在所有理论先验的选择中,我们将M约束为小于2.2e4 Ms(1 sigma置信度)。假设TDE宿主是一个星团,与相邻的,更明亮的,棒透镜状星系在z=0.055,我们约束M和a分别为(1.75+0.45-0.05)e4 Ms和0.8+0.12-0.02,在1 sigma置信度。高,但次极端,自旋表明,如果这个中等质量的黑洞(IMBH)自形成以来已经显着增长,它已经获得了最后的e倍质量的方式与气体吸积的标准和混乱的限制。我们的是第一个明确的IMBH与自旋测量。因此,这个物体代表了天体粒子物理学的一个新实验室;它的M和a严格限制了超轻玻色子的存在,排除了质量为1.0e-15到1.0e-16 eV的玻色子。

英文摘要:

We simultaneously and successfully fit the multi-epoch X-ray spectra of the tidal disruption event (TDE) 3XMM J215022.4-055108 using a modified version of our relativistic slim disk model that now accounts for angular momentum losses from radiation. We explore the effects of different disk properties and of uncertainties in the spectral hardening factor fc and redshift z on the estimation of the black hole mass M and spin a. Across all choices of theoretical priors, we constrain M to less than 2.2e4 Ms at 1 sigma confidence. Assuming that the TDE host is a star cluster associated with the adjacent, brighter, barred lenticular galaxy at z=0.055, we constrain M and a to be (1.75+0.45-0.05)e4 Ms and 0.8+0.12-0.02, respectively, at 1 sigma confidence. The high, but sub-extremal, spin suggests that, if this intermediate mass black hole (IMBH) has grown significantly since formation, it has acquired its last e-fold in mass in a way incompatible with both the standard and chaotic limits of gas accretion. Ours is the first clear IMBH with a spin measurement. As such, this object represents a novel laboratory for astro-particle physics; its M and a place tight limits on the existence of ultralight bosons, ruling out those with masses 1.0e-15 to 1.0e-16 eV.

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