84 citations · 120 across the 29 of their papers we have counts for
30 papers
A Gamma-ray Emitting Head-Tail Radio Galaxy Swimming Through the Hot Medium of the Merging Cluster Abell 3627
Vaidehi S. Paliya, M. Böttcher, Swayamtrupta Panda +4
Head-tail radio sources are jetted active galactic nuclei (AGN) moving through the dense intracluster medium of galaxy clusters. They are extremely rare in the gamma-ray sky, likel…
Tracing the Cosmic web across Cosmic time through SKA observations of radio galaxies
Pratik Dabhade, Gianluca Castignani, Mousumi Mahato +4
The Square Kilometre Array will transform studies of the cosmic web by tracing radio galaxies (RGs) and star-forming systems across cosmic time with unprecedented sensitivity, angu…
SMA Observations of the Archetypal Compact Steep-spectrum Radio Source 3C 303.1
Rushikesh Bhutkar, Mark Gurwell, Christopher O'Dea +5
AGN (active galactic nuclei) feedback plays a crucial role in shaping galaxy evolution. Numerical simulations show that the kinetic energy transfer efficiency from radio jets to in…
Simulating megaparsec-scale jets of radio galaxies: Magneto-hydrodynamics of jets reaching 5 Mpc
Gourab Giri, Dario Borgogno, Marco Tavani +9
Extragalactic jets have long prompted the question of how far relativistic outflows can extend, with some radio sources reaching 5 - 7 Mpc in length. These great extents motivate i…
The Emerging Population of High-energy Emitting Radio Galaxies
G. Bruni, V. S. Paliya, D. J. Saikia +22
High-energy emission from radio galaxies provides a unique laboratory to study the connection between accretion, jet formation, and particle acceleration in active galactic nuclei…
Narrow-Line Seyfert 1 Galaxies in the Dark Energy Spectroscopic Instrument Data Release 1
Vaidehi S. Paliya, Suvendu Rakshit, Alberto Dominguez +2
Narrow-line Seyfert 1 (NLSy1) galaxies are peculiar active galactic nuclei (AGN) known to exhibit a variety of intriguing observational features from low-frequency radio waves to h…
The Quasar Main Sequence of Super-Eddington NLSy1 Galaxies
Alberto Domínguez, Suvendu Rakshit, Vaidehi S. Paliya +2
The quasar main sequence, or Eigenvector 1 (EV1), describes the optical diversity of active galactic nuclei (AGN), with Narrow-Line Seyfert 1 (NLSy1) galaxies anchoring the high-ac…
Stratification of the AGN-Driven multi-phase outflows in the dwarf Seyfert galaxy NGC 4395
Payel Nandi, Luis Colina, Rogemar A. Riffel +5
We present a multi-wavelength study of nuclear outflows in the nearby dwarf Seyfert galaxy NGC~4395, which hosts an intermediate-mass black hole. Using \textit{JWST}/NIRSpec and MI…
A Serendipitous NuSTAR Detection of a Giant Radio Source Harboring an Obscured Active Galactic Nucleus
Vaidehi S. Paliya, S. Marchesi, X. Zhao +3
Giant radio sources (GRSs) harbor the Universe's largest structures generated by individual galaxies, with projected source sizes exceeding 700 kpc. These enigmatic objects have be…
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…
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…
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…
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…
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…
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}…
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…
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…
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…
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…
DA 362: A Gamma-ray Emitting Compact Symmetric Object
Subhashree Swain, Vaidehi S. Paliya, D. J. Saikia +1
The Gamma-ray detection from an astrophysical object indicates the presence of an extreme environment where high-energy radiation is produced. With the continuous monitoring of the…
FAST H I 21 cm study of blueberry galaxies
Yogesh Chandola, Chao-Wei Tsai, D. J. Saikia +3
Green Peas (GPs) and blueberry galaxies (BBs) are thought to be local analogs (0.1) of high redshift Ly emitters. H I study of these can help us understand the star formatio…
Probing the Formation of Megaparsec-scale Giant Radio Galaxies (I): Dynamical Insights from MHD Simulations
Gourab Giri, Joydeep Bagchi, Kshitij Thorat +3
Giant radio galaxies (GRGs), a minority among the extended-jetted population, form in a wide range of jet and environmental configurations, complicating the identification of the g…
Radio Morphology of Gamma-ray Sources: Double-Lobed Radio Sources
Vaidehi S. Paliya, D. J. Saikia, Alberto Domínguez +1
The extragalactic gamma-ray sky is dominated by relativistic jets aligned to the observer's line of sight, i.e., blazars. A few of their misaligned counterparts, e.g., radio galaxi…
Search and analysis of giant radio galaxies with associated nuclei (SAGAN) V. Study of giant double-double radio galaxies from LoTSS DR2
Pratik Dabhade, Kshitij Chavan, D. J. Saikia +2
To test the hypothesis that megaparsec-scale giant radio galaxies (GRGs) experience multiple epochs of recurrent activity leading to their giant sizes and to understand the nature…