152 citations · 2.4k across the 65 of their papers we have counts for
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Testing the Kerr metric with the iron line and the KRZ parametrization
Yueying Ni, Jiachen Jiang, Cosimo Bambi
The spacetime geometry around astrophysical black holes is supposed to be well approximated by the Kerr metric, but deviations from the Kerr solution are predicted in a number of s…
An Effective Selection Method for Low-Mass Active Black Holes and First Spectroscopic Identification
Tomoki Morokuma, Nozomu Tominaga, Masaomi Tanaka +13
We present a new method to effectively select objects which may be low-mass active black holes (BHs) at galaxy centers using high-cadence optical imaging data, and our first spectr…
Testing the Kerr black hole hypothesis: comparison between the gravitational wave and the iron line approaches
Alejandro Cardenas-Avendano, Jiachen Jiang, Cosimo Bambi
The recent announcement of the detection of gravitational waves by the LIGO/Virgo collaboration has opened a new window to test the nature of astrophysical black holes. Konoplya &…
Rapidly Rising Transients from Subaru Hyper Suprime-Cam Transient Survey
Masaomi Tanaka, Nozomu Tominaga, Tomoki Morokuma +13
We present rapidly rising transients discovered by a high-cadence transient survey with Subaru telescope and Hyper Suprime-Cam. We discovered five transients at z=0.384-0.821 showi…
Testing the Kerr nature of black hole candidates using iron line reverberation mapping in the CPR framework
Jiachen Jiang, Cosimo Bambi, James F. Steiner
The iron K line commonly observed in the X-ray spectrum of black hole candidates is produced by X-ray fluorescence of the inner accretion disk. This line can potentially be quit…