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arXiv · 2206.12506

Multiwavelength temporal and spectral study of TeV blazar 1ES 1727+502 during 2014 to 2021

Raj Prince·Rukaiya Khatoon·Pratik Majumdar·Bożena Czerny·Nayantara Gupta
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Abstract

One of the most important questions in blazar physics is the origin of broadband emission and fast-flux variation. In this work, we studied the broadband temporal and spectral properties of a TeV blazar 1ES 1727+502 and explore the one-zone synchrotron-self Compton (SSC) model to fit the broadband spectral energy distribution (SED). We collected the long-term (2014-2021) multiband data which includes both the low and high flux states of the source. The entire light curve is divided into three segments of different flux states and the best-fit parameters obtained by broadband SED modeling corresponding to three flux states were then compared. The TeV blazar 1ES 1727+502 has been observed to show the brightest flaring episode in X-ray followed by optical-UV and gamma-ray. The fractional variability estimated during various segments behaves differently in multiple wavebands, suggesting a complex nature of emission in this source. This source has shown a range of variability time from days scale to month scale during this long period of observations between 2014-2021. A "harder-when-brighter" trend is not prominent in X-ray but seen in optical-UV and an opposite trend is observed in gamma-ray. The complex nature of correlation among various bands is observed. The SED modeling suggests that the one-zone SSC emission model can reproduce the broadband spectrum in the energy range from optical-UV to very high energy gamma-ray.

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Raj Prince, Rukaiya Khatoon, Pratik Majumdar, Bożena Czerny, Nayantara Gupta. 2022-06-24. Multiwavelength temporal and spectral study of TeV blazar 1ES 1727+502 during 2014 to 2021. https://doi.org/10.1093/mnras%2Fstac1866

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