106 citations · 124 across the 5 of their papers we have counts for
5 papers
Black hole mass estimate in OJ 287 based on the bulk-motion comptonization model
Sergey Kuznetsov, Lev Titarchuk
The multi-wavelength outburst activity in the BL Lacertae source OJ 287 has sparked a lot of controversy about whether the source contains one or two black holes (BHs) and what cha…
Space Storm Measurements of 17 and 21 April 2002 Forbush Effects from Artemis-IV Solar Radio-Spectrograph, Athens Neutron Monitor Station and Coronas-F Satellite
C. Caroubalos, X. Moussas, P. Preka-Papadema +11
In this report we present two complex eruptive solar events and the associated Cosmic Ray effects (Forbush decrease). We use combined recordings from a number of Earthbound Receive…
An Extreme Solar Event of 20 January 2005: Properties of the Flare and the Origin of Energetic Particles
V. V. Grechnev, V. G. Kurt, I. M. Chertok +9
The extreme solar and SEP event of 20 January 2005 is analyzed from two perspectives. Firstly, we study features of the main phase of the flare, when the strongest emissions from m…
Correlations between X-ray Spectral and Timing Characteristics in Cyg X-2
Lev Titarchuk, Sergey Kuznetsov, Nikolai Shaposhnikov
Correlations between the quasi-periodic oscillations (QPOs) and the spectral power-law index have been reported for a number of black hole candidate sources and for four neutron st…
Correlations between X-ray Spectral Characteristics and Quasi-Periodic Oscillations in Sco X-1
Charles F. Bradshaw, Lev Titarchuk, Sergey Kuznetsov
Correlations between 1-10 Hz quasi-periodic oscillations (QPOs) and spectral power law index have been reported for black hole (BH) candidate sources and one neutron star source, 4…