摘要：Context. The black hole mass measurement in active galaxies is a
challenge, particularly in sources where the reverberation method cannot be applied.
Aims. We aim to determine the black hole mass in a very special object,
RE J1034+396, one of the two active galactic nuclei (AGN) with quasi-periodic oscillations
detected in X-rays, and a single bright AGN with optical band totally dominated by
starlight.
Methods. We fit the stellar content using the code starlight,
and the broad band disk contribution to optical/UV/X-ray emission is modeled with
OPTXAGNF. Based on starlight, we develop our own code OPTGAL for simultaneous
fitting of the stellar, Fe II, and BC content in the optical/UV/X-ray data. We also
determine the black hole mass using several other independent methods.
Results. Various methods give contradictory results. Most measurements
of the black hole mass are in the range 106−107 M⊙, and
the measurements based on dynamics give higher values than measurements based on
Hβ and Mg
II emission lines.
关键词：accretion, accretion disks;galaxies: active;quasars: individual: RE J1034+396
