Investigating Optical Variability of the Blazar S5 0716+714 On Diverse Time-scales

Abstract

We present the results of the observational study of the blazar S5 0716+716 in the optical bands B, V, R, and I between March 2019 and August 2023 to investigate its variability on diverse time-scales. The blazar was followed up by the T60 robotic telescope in Turkey for 416 nights to obtain long-term variability during this period. In order to search for intraday variability of the object, we have carried out 21 nights of observations with the T100 telescope for at least 1 hour. The blazar showed a ~2.47 mag variation in the optical R-band during our monitoring period, the brightest state on 18.01.2020 (MJD 58866) as R=12.109$\pm$0.011 and the faintest state on 23.03.2019 (MJD 58565) as R=14.580$\pm$0.013. We employed the nested ANOVA test and the power enhanced F-test to quantify intraday variability which showed that the blazar was significantly variable in the R-band on 12 out of 21 nights. Correlation analysis of the light curves shows that the emission in the BVRI optical bands was strongly correlated both in the short and long term without any time lag. The blazar has likely quasi-periods of 186$\pm$30, 532$\pm$76 days in the optical R-band light curve according to the WWZ, and the LS periodogram. The IDV and LTV features are discussed within the frame of prospective scenarios.

arXiv comment15 pages, 8 figures. Accepted for publication in ApJ

References in corpus (50)

• Array Programming with NumPy
• Astropy: A Community Python Package for Astronomy
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package
• Unified Schemes for Radio-Loud Active Galactic Nuclei
• The Spectral Energy Distribution of Fermi bright blazars
• MOJAVE. X. Parsec-Scale Jet Orientation Variations and Superluminal Motion in AGN
• Optical and radio behaviour of the BL Lacertae object 0716+714
• Blazar spectral variability as explained by a twisting inhomogeneous jet
• The WEBT BL Lac Campaign 2000
• The Spectral Energy Distributions of Fermi Blazars
• Relativistic Jets in Active Galactic Nuclei und Microquasars
• Multifrequency monitoring of the blazar 0716+714 during the GASP-WEBT-AGILE campaign of 2007
• Optical Intra-day Variability in Blazars
• Radio to gamma-ray variability study of blazar S5 0716+714
• The Color Variability of Quasars
• Discovery of Very High Energy gamma-rays from the blazar S5 0716+714
• The Unanticipated Phenomenology of the Blazar PKS~2131$-$021: A Unique Super-Massive Black Hole Binary Candidate
• Intra-night Optical Variability of Luminous Radio Quiet QSOs
• Multi-wavelength variability properties of Fermi blazar S5 0716+714
• Multi-band optical variability studies of BL Lacertae
• Testing the inverse-Compton catastrophe scenario in the intra-day variable blazar S5 0716+71. I. Simultaneous broadband observations during November 2003
• The 72-Hour WEBT Microvariability Observation of Blazar S5 0716+714 in 2009
• Multiwavelength Intraday Variability of the BL Lac S5 0716+714
• Eleven years of monitoring the Seyfert 1 Mrk 335 with Swift: Characterizing the X-ray and UV/optical variability
• Multifrequency Photo-polarimetric WEBT Observation Campaign on the Blazar S5 0716+714: Source Microvariability and Search for Characteristic Timescales
• On the reliability of microvariability tests in quasars
• Quasi-periodic behaviour in the optical and γ-ray light curves of blazars 3C 66A and B2 1633+38
• Multi-color Near Infra-red Intra-day and Short Term Variability of the Blazar S5 0716+714
• The dual nature of blazar fast variability. Space and ground observations of S5 0716+714
• Nature of Intra-night Optical Variability of BL Lacertae
• Rapid optical variability in blazar S5 0716+71 during 2010 March
• TeV Blazars - Observations and Models
• Multi-band optical variability of the Blazar S5 0716+714 in outburst state during 2014-2015
• Multi-wavelength study of flaring activity in BL Lac object S5 0716+714 during 2015 outburst
• A possible jet precession in the periodic quasar B0605-085
• Testing microvariability in quasar differential light curves using several field stars
• Short Term Flux and Colour Variations in Low-Energy Peaked Blazars
• Optical quasi-periodic oscillation of the BL Lacertae object S5 0716+714 during the faint state
• Possible Accretion Disk Origin of the Emission Variability of a Blazar Jet
• Optical Flux and Spectral Variability of the TeV blazar PG 1553+113
• Optical monitoring of BL Lac object S5 0716+714 and FSRQ 3C273 from 2000 to 2014
• Multi-color optical monitoring of the BL Lacertae object S5 0716+714 during the 2012 outburst
• A 31.3 day Transient Quasiperiodic Oscillation in Gamma-ray Emission from Blazar S5 0716+714
• Two-sided radio emission in ON231 (W Comae)
• Detecting microvariability in type 2 quasars using enhanced F-test
• Characterizing the optical nature of the blazar S5 1803+784 during its 2020 flare
• Optical variability in IBL S5 0716+714 during the 2013-2015 outburst
• Long-term multiband optical variability of S5 0716+714 blazar

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