30 citations · 203 across the 32 of their papers we have counts for
32 papers
Citizen Science Research with the Square Kilometre Array Observatory (SKAO)
Ananda Hota, Pratik Dabhade, M. J. Hardcastle +8
Over the past two decades, internet-enabled citizen science research (CSR) has contributed to significant discoveries while involving millions of people in the research process. Ou…
RAD@home discovery of a bow-and-arrow radio galaxy tracing a ~560 kpc bow-shock structure in a multi-halo environment
Ananda Hota, Pratik Dabhade, Shubhrangshu Ghosh +9
We report the RAD@home citizen science discovery of a unique bow-and-arrow-shaped radio galaxy (BAARG; RAD J104501.6+352852, z = 0.159) identified in LoTSS DR2. The source exhibits…
Wiggling Through the ICM: Multi-Resolution Radio Imaging of a Tailed Radio Galaxy in MACS J1354.6+7715
Abdul Gani, Roland Timmerman, Leah K. Morabito +4
Tailed radio galaxies are powerful tracers of interactions between active galactic nuclei (AGN) and the intracluster medium (ICM), providing unique insights into cluster dynamics.…
Investigating quenching in Recently Quenched Elliptical galaxies with HI studies
Deepak K. Deo, Daniel H. McIntosh, Sravani Vaddi +4
Recently Quenched Elliptical galaxies (RQEs) represent a critical phase in the transition from star-forming to quiescent galaxies. However, the mechanisms driving their quenching r…
Two Epochs of VLBI Observations of 8 KISSR Seyfert & LINER Galaxies: Suggestions of Fast and Filamentary Outflows
Preeti Kharb, Anderson Caproni, Salmoli Ghosh +4
We present here the results from a second epoch of phase-referenced VLBA observations of 8 Seyfert and LINER galaxies from the KISSR sample. These sources were chosen based on the…
A Deep Chandra View of Abell 2597: Bubbles, Shocks, Cold Fueling, and a Plasma Depletion Layer
Osase Omoruyi, Grant Tremblay, Stefi A. Baum +14
To examine how AGN feedback shapes the intracluster medium (ICM) and fuels black hole accretion in the cool-core galaxy cluster Abell 2597, we present deep (600 ks) Chandra X…
Jet-mode feedback in NGC 5972: insights from resolved MUSE, GMRT and VLA observations
Arshi Ali, Biny Sebastian, Darshan Kakkad +10
NGC 5972, a Voorwerp galaxy, features a helical-shaped extended emission-line region (EELR) with a radius > 10 kpc and a S-shaped radio structure spanning about 470 kpc. We use VLT…
Ten years of searching for relics of AGN jet feedback through RAD@home citizen science
Ananda Hota, Pratik Dabhade, Prasun Machado +15
Understanding the evolution of galaxies cannot exclude the important role played by the central supermassive black hole and the circumgalactic medium (CGM). Simulations have strong…
HI Imaging of a Blueberry Galaxy Suggests a Merger Origin
Saili Dutta, Apurba Bera, Omkar Bait +3
Blueberry galaxies (BBs) are fainter, less massive, and lower redshift counterparts of the Green pea galaxies. They are thought to be the nearest analogues of the high redshift Lym…
Relativistic Jet Motion in the Radio-quiet LINER Galaxy KISSR872
Preeti Kharb, Eric G. Blackman, Eric Clausen-Brown +5
We report superluminal jet motion with an apparent speed of in the radio-quiet (RQ) low ionisation nuclear emission line region (LINER) galaxy, KISSR87…
"Beads on a String" Star Formation Tied to one of the most Powerful AGN Outbursts Observed in a Cool Core Galaxy Cluster
Osase Omoruyi, Grant R. Tremblay, Francoise Combes +19
With two central galaxies engaged in a major merger and a remarkable chain of 19 young stellar superclusters wound around them in projection, the galaxy cluster SDSS J1531+3414 ($z…
The Close AGN Reference Survey (CARS): An interplay between radio jets and AGN radiation in the radio-quiet AGN HE 0040-1105
M. Singha, N. Winkel, S. Vaddi +14
We present a case study of HE 0040-1105, an unobscured radio-quiet AGN at a high accretion rate (Eddington ratio = 0.19+/-0.04). This particular AGN hosts an ionized gas outflow wi…
The Next Generation Arecibo Telescope: A preliminary study
D. Anish Roshi, Sean Marshall, Amit Vishwas +9
The Next Generation Arecibo Telescope (NGAT) was a concept presented in a white paper Roshi et al. (2021) developed by members of the Arecibo staff and user community immediately a…
RAD@home discovery of a one-sided radio jet hitting the companion galaxy
Ananda Hota, Pratik Dabhade, Sravani Vaddi
Minkowski's Object and 'Death Star galaxy' are two of the famous cases of rare instances when a radio jet has been observed to directly hit a neighbouring galaxy. RAD12, the RAD@ho…
RAD@home citizen science discovery of an AGN spewing a large unipolar radio bubble onto its merging companion galaxy
Ananda Hota, Pratik Dabhade, Sravani Vaddi +8
AGN feedback during galaxy merger has been the most favoured model to explain black hole-galaxy co-evolution. However, how the AGN-driven jet/wind/radiation is coupled with the gas…
The Complete Local Volume Groups Sample -- IV. Star formation and gas content in group-dominant galaxies
Konstantinos Kolokythas, Sravani Vaddi, Ewan O'Sullivan +5
Using multi-band data we examine the star formation activity of the nearby group-dominant early-type galaxies of the Complete Local-volume Groups Sample (CLoGS), and the relation b…
A Comprehensive Study of the Young Cluster IRAS 05100+3723: Properties, Surrounding Interstellar Matter, and Associated Star Formation
R. K. Yadav, M. R. Samal, E. Semenko +13
We present a comprehensive multiwavelength investigation of a likely massive young cluster `IRAS 05100+3723' and its environment with the aim to understand its formation history an…
Search for fast radio transients using Arecibo drift-scan observations at 1.4 GHz
B. B. P. Perera, A. J. Smith, S. Vaddi +12
We conducted a drift-scan observation campaign using the 305-m Arecibo telescope in January and March 2020 when the observatory was temporarily closed during the intense earthquake…
Long-term meter wavelength variability study of Blazar J1415+1320 using the Ooty Radio Telescope
Sravani Vaddi, P. K. Manoharan, Anish Roshi
J1415+1320 is a well-studied blazar that exhibits strong flux density variability at a wide range of radio frequencies (2.4 230~GHz). In this letter, we present a variability s…
The Nature of Jets in Double-Peaked Emission Line AGN in the KISSR Sample
P. Kharb, S. Subramanian, M. Das +2
Double-peaked emission line AGN (DPAGN) have been regarded as binary black hole candidates. We present here results from parsec-scale radio observations with the Very Long Baseline…
Detection of OH 18-cm Emission from Comet C/2020 F3 NEOWISE using the Arecibo Telescope
Allison J. Smith, D. Anish Roshi, Periasamy Manoharan +3
We report the detection of emission from the OH 18 cm -doublet transitions toward Comet C/2020 F3 NEOWISE using the Arecibo Telescope. The antenna temperatures are 1133 mK…
The Sharpest Ultraviolet view of the star formation in an extreme environment of the nearest Jellyfish Galaxy IC 3418
Ananda Hota, Ashish Devaraj, Ananta C. Pradhan +11
We present the far ultraviolet (FUV) imaging of the nearest Jellyfish or Fireball galaxy IC3418/VCC 1217, in the Virgo cluster of galaxies, using Ultraviolet Imaging Telescope (UVI…
The Future Of The Arecibo Observatory: The Next Generation Arecibo Telescope
D. Anish Roshi, N. Aponte, E. Araya +71
The Arecibo Observatory (AO) is a multidisciplinary research and education facility that is recognized worldwide as a leading facility in astronomy, planetary, and atmospheric and…
A Multi-wavelength Study of the Dual Nuclei in Mrk 212
K. Rubinur, P. Kharb, M. Das +5
We present radio observations of the galaxy merger remnant Mrk 212 with the Karl G. Jansky Very Large Array (VLA) and the upgraded Giant Meter Radio Telescope (uGMRT). Mrk 212 has…