dc.contributor.author |
Bhattacharya, D |
|
dc.contributor.author |
Krishna Mohana, A |
|
dc.contributor.author |
Bhattacharyya, S |
|
dc.contributor.author |
Bhatt, N |
|
dc.contributor.author |
Stalin, C. S |
|
dc.date.accessioned |
2021-02-14T06:03:57Z |
|
dc.date.available |
2021-02-14T06:03:57Z |
|
dc.date.issued |
2021-01 |
|
dc.identifier.citation |
Monthly Notices of the Royal Astronomical Society , Vol. 500, No. 1, pp. 1127-1138 |
en_US |
dc.identifier.issn |
1365-2966 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/7630 |
|
dc.description |
Restricted Access © The Royal Astronomical Society https://doi.org/10.1093/mnras/staa2958 |
en_US |
dc.description.abstract |
Blazars, a class of active galactic nuclei, emit over the entire accessible electromagnetic spectrum and modelling of their broad-band spectral energy distribution (SED) is the key to constrain the underlying emission mechanisms. Here we report the results on the one-zone leptonic emission modelling carried out on the blazar 4C+21.35 using multiwavelength data spanning over the period 2008–2018. Broad-band SED modelling using γ-ray data from Fermi-Large Area Telescope, X-ray data from Swift-XRT and AstroSat, and UV–optical data from Swift-UVOT, AstroSat, and Catalina Real-Time Transient Survey was carried out at seven different epochs, including three γ-ray flaring episodes and four quiescent periods (three long-term averaged ones and one during AstroSat observing period). Our SED modelling suggests that two compact emission regions originating at a different time outside the broad-line region and moving away from the core with variation primarily in the jet electron spectra can explain the emission from the high-, moderate-, and low-activity periods. The emissions from high- and first low-activity states are likely to have originated in the first region. The moderate- and second low-activity states are likely due to the second emission region with fresh particle acceleration/injection at a later time. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Oxford University Press on behalf of the Royal Astronomical Society |
en_US |
dc.subject |
galaxies: active |
en_US |
dc.subject |
galaxies: jets |
en_US |
dc.subject |
gamma-rays: galaxies |
en_US |
dc.subject |
X-rays: galaxies–quasars: individual: 4C+21.35 |
en_US |
dc.title |
Multiwavelength study of different flaring and low-activity states of blazar 4C+21.35 |
en_US |
dc.type |
Article |
en_US |