activity
20202026
most citedSearch and analysis of giant radio galaxies with associated nuclei (SAGAN) -- I : New sample and multi-wavelength studies

84 citations · 120 across the 29 of their papers we have counts for

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10 papers · 1 filter

astro-ph.HE2025

Identification of Large-Scale (>100 kpc) Radio Jets in Narrow-Line Seyfert 1 Galaxies

S. Umayal, Vaidehi S. Paliya, D. J. Saikia +3

Powerful, large-scale relativistic jets are usually associated with massive, old elliptical galaxies. This paradigm has recently been challenged by the identification of narrow-lin…

astro-ph.HE2025

An Overview of the Effect of Self-Gravity on the Structure of Accretion Discs

Darashan Saikia, Liza Devi, Biplob Sarkar +1

In astrophysical systems like X-ray binaries (XRBs), active galactic nuclei (AGN), and young stellar objects (YSOs), we often observe a very fundamental structure called accretion…

astro-ph.GA2025

Probing the formation of megaparsec-scale giant radio galaxies II. Continuum & polarization behavior from MHD simulations

Gourab Giri, Christian Fendt, Joydeep Bagchi +4

The persistence of radiative signatures in giant radio galaxies remains a frontier topic of research, with contemporary telescopes revealing intricate features that require investi…

astro-ph.HE2025

The Detection of Teraelectronvolt Radiation from a Flat Spectrum Radio Quasar

Vaidehi S. Paliya, Markus Bottcher, Kiran Wani +5

The very high-energy (VHE; 100 GeV) radiation carries the signatures of the matter-energy interaction in some of the most extreme astrophysical environments. Considering broad e…

astro-ph.HE2025

Fermi-Large Area Telescope Detection of Very High Energy (>100 GeV) Emission from Misaligned Jetted Active Galactic Nuclei

Gunjan Tomar, Vaidehi S. Paliya, D. J. Saikia +1

The detection of very-high-energy (VHE; 100 GeV) -ray radiation from misaligned jetted Active Galactic Nuclei (AGN) challenges the emission models that primarily explain VHE…

astro-ph.GA2025

MeerKAT 1.3 GHz Observations of the Wide Angle Tail Radio Galaxy J17122435

William Cotton, Gourab Giri, P. J. Agnihotri +3

We present full polarization MeerKAT images of the wide-angle tail, giant radio galaxy J17122435 at 1.3 GHz with 7.\asec5 resolution and an RMS sensitivity of 8 Jy beam$^{-1}…

astro-ph.HE2025

Radio Morphology of Gamma-ray Sources -- II. Giant Radio Galaxies

Vaidehi S. Paliya, D. J. Saikia, Gabriele Bruni +2

Giant radio sources, including galaxies and quasars (hereafter GRGs), are active galactic nuclei (AGN) hosting relativistic jets with source sizes exceeding the projected length of…

astro-ph.GA2025

The long-term optical flux variations of Compact Symmetric Objects

Subhashree Swain, Vaidehi S. Paliya, D. J. Saikia +4

Compact Symmetric Objects (CSOs) are a distinct category of jetted active galactic nuclei (AGN) whose optical variability characteristics have not been well investigated. We presen…

astro-ph.GA2025

Warm Ionized Gas Outflows in Active Galactic Nuclei: What Causes it?

Payel Nandi, C. S. Stalin, D. J. Saikia

The driving force behind outflows, often invoked to understand the correlation between the supermassive black holes powering active galactic nuclei (AGN) and their host galaxy prop…

astro-ph.HE2025

X-ray timing and spectral characteristics of compact symmetric objects

Subhashree Swain, C. S. Stalin, Vaidehi S. Paliya +1

Compact Symmetric Objects (CSOs) are a distinct category of jetted active galactic nuclei whose high-energy emission is not well understood. We examined the X-ray characteristics o…