4 papers · 1 filter
Properties of SS433 and ultraluminous X-ray sources in external galaxies
S. Fabrika, S. Karpov, P. Abolmasov +1
We suggest that the ultraluminous X-ray sources located in external galaxies (ULXs) are supercritical accretion disks like that in SS433, observed close to the disk axis. We estima…
INTEGRAL observations of SS433: Results of coordinated campaign
A. M. Cherepashchuk, R. A. Sunyaev, S. N. Fabrika +18
Results of simultaneous INTEGRAL and optical observations of galactic microquasar SS433 in May 2003 and INTEGRAL/RXTE observations in March 2004 are presented. Persistent precessio…
Broad band variability of SS433: Accretion disk at work?
M. Revnivtsev, S. Fabrika, P. Abolmasov +6
We present broad band power spectra of variations of SS433 in radio, optical and X-ray spectral bands. We show that at frequencies lower than 1e-5 Hz the source demonstrates the sa…
Integral field spectroscopy of the ultraluminous X-ray source Holmberg II X-1
I. Lehmann, T. Becker, S. Fabrika +10
We present optical integral field observations of the H II region containing the ultraluminous X-ray source Holmberg II X-1. We confirm the existence of an X-ray ionized nebula as…