6 papers
Tracing the Origin of Circular-Symmetry Diffuse Radio Sources in the Next-Generation SKAO Era
Sabyasachi Pal, Shobha Kumari, Souvik Manik +2
Circularly symmetric diffuse radio sources represent a recently recognized and rare class of extragalactic synchrotron-emitting structures whose physical origin remains uncertain.…
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…
Radio Galaxies and Jet Duty Cycles
M. J. Hardcastle, C. Konar, S. Dutta +10
Radio-luminous active galactic nuclei, or radio galaxies, are the brightest population of objects in the extragalactic radio sky and will be seen in large numbers in essentially ev…
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…
RAD@home discovery of extragalactic radio rings and odd radio circles: clues to their origins
Ananda Hota, Pratik Dabhade, Prasun Machado +3
We present three rare and striking extragalactic radio sources discovered through visual inspection of low-frequency continuum maps from LoTSS DR2 and TGSS by the RAD@home citizen-…
RAD@home citizen science discovery of two spiral galaxies where the 30-220 kpc radio lobes are possibly shaped by ram pressure stripping
Prakash Apoorva, Ananda Hota, Pratik Dabhade +3
We report the RAD@home citizen science discovery of two rare spiral-host radio galaxies (NGC 3898 and WISEA J221656.57-132042434.1 or RAD-"Thumbs up" galaxy), both exhibiting asymm…