146 citations · 894 across the 23 of their papers we have counts for
23 papers
Achromatic rapid flares in hard X-rays in the -ray binary LS I +61-303
Enzo A. Saavedra, Gustavo E. Romero, Valenti Bosch-Ramon +1
We report on the presence of very rapid hard X-ray variability in the -ray binary LS I +61 303. The results were obtained by analysing NuSTAR data, which show two achromatic str…
Evidence for non-thermal X-ray emission from the double WR colliding-wind binary Apep
S. del Palacio, F. García, M. De Becker +5
Context: Massive colliding-wind binaries (CWBs) can be non-thermal sources. The emission produced in their wind-collision region (WCR) encodes information of both the shocks proper…
Study of variability in long-term multiwavelength optical lightcurves of blazar AO 0235+164
Abhradeep Roy, Alok C. Gupta, Varsha R. Chitnis +9
We present a long-term and intraday variability study on optical multiwaveband () data from the blazar AO 0235+164 collected by various telescopes for 44 years (19…
Highly collimated microquasar jets as efficient cosmic-ray sources
G. J. Escobar, L. J. Pellizza, G. E. Romero
Supernova remnants are believed to be the main sites where Galactic cosmic rays originate. This scenario, however, fails to explain some of the features observed in the cosmic-ray…
Nonthermal radiation from the central region of super-accreting active galactic nuclei
Pablo Sotomayor, Gustavo E. Romero
The radio emission mechanism in active galactic nuclei (AGN) with high accretion rates is unclear. It has been suggested that low-power jets may explain the observed radiation at s…
Detection of a quasi-periodic oscillation in the optical light curve of the remarkable blazar AO 0235+164
Abhradeep Roy, Varsha R. Chitnis, Alok C. Gupta +8
We present a long term optical band light curve analysis of the gravitationally lensed blazar AO 0235+164 in the time span 1982 - 2019. Several methods of analysis lead to the…