Bifang Liu

Academic Title: Professor
Mailing Address: Bifang Liu
Education and Career History

2010-present, Professor, NAOC

2004-2010, Professor, Yunnan Observatory, CAS

2003-2004, Humboldt Fellow, Max-Planck Institute for Astrophysics,Germany

2001-2002, JSPS, Kyoto University, Japan

1998-2000, PhD, Yunnan Observatory, CAS,and Max-Planck Institute for Astrophysics,Germany

1996-1997,Visiting Scholar, Max-Planck Institute for Astrophysics,Germany

1990-1995, Research associate, Yunnan Observatory, CAS

1987-1990, MS, Yunnan Observatory, CAS

1983-1987, BS, Xiangtan Uni.t

Research Fields

Accretion on all scales:

Dr. Liu’s primary research interests are on accretion physics in various astronomical systems. Her current and previous work focus on the accretion flows, in particular the accretion disk corona model in black hole X-ray binaries and active galactic nuclei.


Dr. Liu and her collaborators established a disk-corona coupling model, interpreting the spectral state transition in BHXRBs as disk evaporation.

A two-phase accretion model, originating from condensation of wind, was developed for AGN and Cyg X-1.

A magnetic reconnection-heated corona model was proposed to solve energy shortage problem in AGN.

Selected Publication

A Hybrid Two Component Accretion Flow Surrounding Supermassive Black Holes in AGN; Liu, B.F. & Taam, R.E., Qiao, Erlin, Yuan, W. 2015, ApJ, 806:223

The existence of inner cool disks in the low hard state of accreting black holesLiu, B.F. Taam, R.E.,Meyer-Hofmeister, E.,Meyer, F.,2007,ApJ,671, 695-705

Spectra from a magnetic reconnection-heated corona in AGNLiu, B. F., Mineshige, S., & Ohsuga, K., 2003, ApJ, 587, 571-579

Two-temperature coronal flow above a thin diskLiu, B. F., Mineshige, S., Meyer, F., Meyer-Hofmeister, E., & Kawaguchi, T., 2002, ApJ, 575, 117-126

Truncation of geometrically thin disks around massive black holes in galactic nuclei Liu, B. F. & Meyer-Hofmeister, E., 2001, A&A, 372, 386-390