Ya-di Xu

activity

20052009

most citedOn the BL Lacertae objects/radio quasars and the FRI/II dichotomy

56 citations · 70 across the 2 of their papers we have counts for

collaborators

Showing 2005Show all

2 papers · 1 filter

astro-ph2005

Thermal X-Ray Iron Line Emission from the Galactic Center Black Hole Sagittarius A*

Ya-Di Xu, Ramesh Narayan, Eliot Quataert +2

We model thermal X-ray emission from the accreting supermassive black hole Sagittarius A* at the Galactic Center. For the region inside $1 .^{''} 5$ of the center, we use a…

astro-ph2005

Constraints on radiatively inefficient accretion history from Eddington ratio distribution of active galactic nuclei

Xinwu Cao, Ya-Di Xu

The transition of a standard thin disk to a radiatively inefficient accretion flow (RIAF) is expected to occur, when the accretion rate is close to the critical rate. The radiative…