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His research fields
encompass high energy astrophysics, active galactic nucleus (AGN) and
quasars, accretion process of celestial body and binary physics.
Proceeding from data observation, he found out the observation
evidence of statistics of ¡°contact discontinuity (DSC) structure
maintained by thermal relaxation oscillation (TRO), built the theoretical
frame of a new model based on the instability of Roche lobe material
exchange and proposed the unity of TRO and DSC in the new model ¨C a
problem which has been heatedly argued for nearly 30 yeas. He published a
series of papers on the inner structure of contact binary.
He made a systematic study of the continuum
characteristic of AGN and proposed the method of measuring the super
massive black hole of AGN and its accretion disk with big blue bump using
Möbius inverse. This method is simple and not dependent upon the
theoretical model, and fits the non-stationary accretion disk. He obtained
the self-consistent solution of super Eddington accretion flow, which
applies to the super luminous x ray source in the Galaxy and narrow line
Seyfert I. By cooperating with Dr. E. Szuszkiewicz, a British scientist,
he systematically studied the emergent spectra of intermediate super
Eddington accretion disk, calculated its vertical structure and radiation
transfer and applied them in a kind of special AGN-narrow line Seyfert 1.
This model is suitable for a vary wide range of parameters. Based on the
inner structure of AGN, he proposed the intrinsic constraints of TeV
radiation. He also proposed the upper limit of the relativistic jet speed
based on the ultrahigh energy radiation constraint. This model remains to
be verified by observation using the next generation gamma ray telescope
GLAST.
It is an important subject to measure SMBH of AGN and the
angular momentum. Some methods are available for the measurement of SMBH,
but no reliable methods have been developed to measure the angular
momentum. The formation and growth of the super black hole are the most
important step in the formation and evolution of quasars. He proposed that
metallicity be the index for the formation and growth of SMBH with which
to study Rees map. The study of MBH distribution in the BL Lac celestial
body showed that it is of double peak distribution and HBL does not obey
Magorrian.
In
collaboration with a Japanese scientist called Professor Masaaki
Kusunose, he studied the result caused by the blob ejection of the
radio-loud quasar ADAF and found that the strong shock was formed during
the interactions between the cloud supersonic expansion and the peripheral
medium. This effectively accelerated the electrons and then high energy
recombination line was formed when it became cool. He carefully calculated
the evolution of the relativistic electron non-thermal radiation spectrum
of blob ejection and the light change curve and compared them with the
observation of multi-band
continuum. His efforts are now focused on the study of the observed
phenomena pertinent to SMBH characteristics and physical explanation.
The
current subjects he undertakes include ¡°Galaxy Formation and
Evolution¡±, ¡°Very High
Energy Emission in Gamma
Ray Loud Blazars¡± and ¡°Imaging of Hard X Ray¡±
Telephone£º £¨010£©68286443
E-mail£ºwangjm@astrosv1.ihep.ac.cn
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