24 citations · 35 across the 6 of their papers we have counts for
7 papers
Time lag in transient galactic and extragalactic accreting sources
Franco Giovannelli, Gennady S. Bisnovatyi-Kogan
X-ray binaries are cauldrons of fundamental physical processes which appear along practically the whole electromagnetic spectrum. The sub-class of X-ray transient sources show mult…
Time lag in transient cosmic accreting sources
G. S. Bisnovatyi-Kogan, F. Giovannelli
We develop models for time lag between maxima of the source brightness in different wavelengths during a transient flash of luminosity connected with a short period of increase of…
Optical and X-ray behaviour of the high mass X-ray transient A0535+26/HDE245770 in February-March 2014
F. Giovannelli, G. S. Bisnovatyi-Kogan, I. Bruni +3
The optical behaviour of the Be star in the high-mass X-ray transient A0535+26/HDE245770 shows that at periastron the luminosity is typically enhanced by 0.02 to a few tenths magni…
Estimation of alpha-viscosity coefficient from observations of nonstationary disk accretion
G. S. Bisnovatyi-Kogan, A. S. Klepnef, F. Giovannelli
The optical behaviour of the Be star in the high mass X-ray transient A0535+26/HDE245770 shows that at the periastron typically there is an enhancement in the luminosity of order 0…
Time delay between the optical and X-ray outbursts in the high mass X-ray transient A0535+26/HDE245770
F. Giovannelli, G. S. Bisnovatyi-Kogan, A. S. Klepnev
The optical behaviour of the Be star in the high mass X-ray transient A0535+26/HDE245770 shows that at the periastron typically there is an enhancement in the luminosity of order 0…
Very high energy gamma-ray production inside the massive binary system Cyg X-1/HDE 226868
W. Bednarek, F. Giovannelli
We apply the IC e pair cascade model in order to investigate the possible -ray emission features from another compact massive binary of the microquasar type, Cyg X-1. We c…
The broad-band X-ray spectrum of RE 0751+14 (PQ Gem)
T. Belloni, G. Matt, D. De Martino +7
RE 0751+14 is a member of the class of Soft Intermediate Polars. Unlike classical Intermediate Polars, they are characterized by the presence of a soft component in their X-ray spe…