Intra-night optical flux and polarization variability of BL Lacertae during its 2020–2021 high state
R Bachev, T Tripathi, AC Gupta… - Monthly Notices of …, 2023 - academic.oup.com
In this work, we report the presence of rapid intra-night optical variations in both flux and
polarization of the blazar BL Lacertae during its unprecedented 2020–2021 high state of …
polarization of the blazar BL Lacertae during its unprecedented 2020–2021 high state of …
Multiwavelength periodicity search in a sample of γ-ray bright blazars
J Otero-Santos, P Peñil… - Monthly Notices of …, 2023 - academic.oup.com
We present the results of a long-term periodicity search in a sample of γ-ray blazars within a
multiwavelength context. These blazars have been selected from the Steward Observatory …
multiwavelength context. These blazars have been selected from the Steward Observatory …
Exploring short-term optical variability of blazars using TESS
We present a first systematic time series study of a sample of blazars observed by the
Transiting Exoplanet Survey Satellite (TESS). By cross matching the positions of the sources …
Transiting Exoplanet Survey Satellite (TESS). By cross matching the positions of the sources …
X-ray Intraday Variability of Five TeV Blazars with NuSTAR
Abstract We have examined 40 Nuclear Spectroscopic Telescope Array (NuSTAR) light
curves (LCs) of five TeV emitting high synchrotron peaked blazars: 1ES 0229+ 200, Mrk 421 …
curves (LCs) of five TeV emitting high synchrotron peaked blazars: 1ES 0229+ 200, Mrk 421 …
Multi-waveband quasi-periodic oscillations in the light curves of blazar CTA 102 during its 2016–2017 optical outburst
Context. Quasi-periodic fluctuations in the light curves of blazars can provide insight into the
underlying emission process. This type of flux modulation hints at periodic physical …
underlying emission process. This type of flux modulation hints at periodic physical …
Multiband optical variability on diverse time-scales of the TeV blazar TXS 0506+ 056, the first cosmic neutrino source
We report the first extensive optical flux and spectral variability study of the TeV blazar TXS
0506+ 056 on intranight to long-term time-scales using BVRI data collected over 220 nights …
0506+ 056 on intranight to long-term time-scales using BVRI data collected over 220 nights …
Optical variability of TeV blazars on long time-scales
We present the results of photometric observations of three TeV blazars, 3C 66A, S4 0954+
658, and BL Lacertae (BL Lac), during the period 2013–2017. Our extensive observations …
658, and BL Lacertae (BL Lac), during the period 2013–2017. Our extensive observations …
Optical flux and spectral variability of the TeV blazar PG 1553+ 113
We present the results of our optical (VRI) observations of the TeV blazar PG 1553+ 113
over eight nights in 2016 April. We monitored the blazar quasi-simultaneously in V and R …
over eight nights in 2016 April. We monitored the blazar quasi-simultaneously in V and R …
X-ray intraday variability of the TeV blazar Mrk 421 with Chandra
We present an extensive study of 72 archival Chandra light curves of the high-frequency-
peaked type blazar Mrk 421, the first strong extragalactic object to be detected at TeV …
peaked type blazar Mrk 421, the first strong extragalactic object to be detected at TeV …
Variability and Period Analysis for BL Lac AO 0235+ 164
Variability is one of the extreme observational properties of BL Lacertae objects. AO 0235+
164 is a well-studied BL Lac throughout all electromagnetic wavebands. In the present work …
164 is a well-studied BL Lac throughout all electromagnetic wavebands. In the present work …