6 papers
Runaway electromagnetic cascade in shear flows and high energy radiation of astrophysical jets
B. E. Stern, J. Poutanen
We propose a straightforward and efficient mechanism of the high energy emission of astrophysical jets associated with an exchange of interacting high energy photons between the je…
Statistical Constraints On Non-Cosmological Subclasses Of GRBs
Ya. Tikhomirova, B. E. Stern, R. Svensson
There still exists the possibility that the phenomenon of gamma-ray bursts (GRBs) is a mixture of events of different nature, even within the class of long (>2 s) bursts. We try to…
Power Density Spectra of Gamma-Ray Bursts
Andrei M. Beloborodov
Power density spectra (PDSs) of long gamma-ray bursts provide useful information on GRBs, indicating their self-similar temporal structure. The best power-law PDSs are displayed by…
Relativistic Outflows in Gamma Ray Bursts
Boris Stern
Despite that gamma-ray bursts is a phenomenon quite different from accreting compact objects, it could be that their hard X-ray emission is associated with a very similar mechanism…
Average properties of the time behaviour of gamma-ray bursts
Boris Stern, Roland Svensson, Juri Poutanen
The average peak-aligned profile of all bursts detected by BATSE with sufficient data quality has a simple ``stretched'' exponential shape, F ~ exp[-(t/t_0)^{1/3}], where is th…
Two-phase pair corona model for AGN: physical modelling and diagnostics
Juri Poutanen, Roland Svensson, Boris Stern
The predictions of the two-phase accretion disc-corona models for active galactic nuclei are compared with observations. We discuss the possibility to use X-ray spectral slopes, eq…