Results 11 to 20 of about 6,255 (211)
THE NATURE OF TRANSITION BLAZARS [PDF]
The Astrophysical Journal, 2014 14 pages, 11 Figures, ApJ ...
J. J. Ruan +6 more
core +6 more sources
Blazars at Very High Energies: Emission Modelling
Galaxies, 2022 Blazars are very broadband cosmic sources with spectra spanning over twenty orders of magnitude in frequency, down to the 100 MHz regime in the radio range, up to VHE at several tens of TeV.
Andreas Zech, Hélène Sol
exaly +3 more sources
The Nature of Micro-Variability in Blazars
Galaxies, 2021 We present the results of a long-term study designed to investigate the nature of micro-variability in blazars carried out primarily at the Southeastern Association for Research in Astronomy (SARA) observatories.
James Webb, Gopal Bhatta
exaly +3 more sources
Astronomy and Astrophysics Supplement Series, 1998 The results of both BVRI CCD photometric monitoring and fast photometry for 8 blazars and variable quasars are presented. There is intraday variability for 6 blazars and very short timescales (minutes to two hours) variability for 5 objects. Implications for relativistic beaming are briefly discussed.
Guibin Jia +3 more
openaire +2 more sources
A Model of Polarisation Rotations in Blazars from Kink Instabilities in Relativistic Jets
Galaxies, 2017 This paper presents a simple model of polarisation rotation in optically thin relativistic jets of blazars. The model is based on the development of helical (kink) mode of current-driven instability.
Krzysztof Nalewajko
exaly +3 more sources
BlazEr1: The eROSITA blazar catalog
Astronomy & AstrophysicsAims.eROSITA, on board the Spectrum Roentgen Gamma (SRG) spacecraft, performed its first X-ray all-sky survey (eRASS1) between December 2019 and June 2020.
Hämmerich S. +30 more
doaj +3 more sources
The RoboPol Program: Optical Polarimetric Monitoring of Blazars
Galaxies, 2019 After three years of polarimetric monitoring of blazars, the RoboPol project has uncovered several key characteristics of polarimetric rotations in the optical for these most variable sources.
Vasiliki Pavlidou, Dmitry Blinov
exaly +3 more sources
Journal of High Energy Astrophysics, 2015 I will review recent advances in the field of blazars, highlighting the contribution of Swift. Together with other operating satellites (most notably Fermi, but also AGILE, WISE, Planck) and ground based facilities such as Cherenkov telescopes, Swift was (and is) crucial for improving our understanding of blazars.
Ghisellini, Gabriele
openaire +4 more sources
Multi-messenger emission characteristics of blazars [PDF]
Frontiers in Astronomy and Space SciencesMulti-messenger observations and theories of astrophysical objects are rapidly becoming a critical research area in the astrophysics scientific community. In particular, point-like objects such as BL Lacertae (BL Lac) objects, flat-spectrum radio quasars
Ronald Gamble +10 more
doaj +2 more sources
Classification of unassociated fermi-LAT sources [PDF]
ITM Web of Conferences, 2022 The Large Area Telescope (LAT) on board NASA’s Fermi Gamma-ray Space telescope has detected 5788 sources in the 4FGL catalogue. Among them, 271 have been associated to pulsars, 3436 to blazars, and 1782 remain unassociated sources.
Meng Qiyu
doaj +1 more source