19 citations · 95 across the 14 of their papers we have counts for
14 papers
Illuminating the Diffuse Radio Emission in Low-Mass Cluster: Abell 13
Nasmi S Anand, Swarna Chatterjee, Ramij Raja +2
Recent advances in high-sensitivity radio observations have uncovered a population of faint, ultra-steep-spectrum sources in galaxy clusters, commonly known as radio phoenixes. How…
uGMRT sub-GHz view of the Sausage cluster diffuse radio sources
Ramij Raja, Oleg M. Smirnov, Tiziana Venturi +2
CIZA J2242.8+5301, or the Sausage cluster, is well studied over a range of frequencies. Since its first discovery, a lot of interesting features and unique characteristics have bee…
Exploring the Dynamical Nature and Radio Halo Emission of Abell 384: A Combined Radio, X-ray and Optical Study
Swarna Chatterjee, Denisha Pillay, Abhirup Datta +4
Multiwavelength studies of galaxy clusters are crucial for understanding the complex interconnection of the thermal and non-thermal constituents of these massive structures and unc…
A Multi-Frequency View of the Radio Phoenix in the Abell 85 Cluster
Ramij Raja, Majidul Rahaman, Abhirup Datta +1
Radio phoenices are complex and filamentary diffuse radio sources found in both merging and relaxed clusters. The formation of these sources was proposed to be due to adiabatic com…
A radio bridge connecting the minihalo and phoenix in the Abell 85 cluster
Ramij Raja, Majidul Rahaman, Abhirup Datta +1
Galaxy clusters are located at the nodes of cosmic filaments and therefore host a lot of hydrodynamical activity. However, cool core clusters are considered to be relatively relaxe…
Exploring diffuse radio emission in galaxy clusters and groups with the uGMRT and the SKA
Surajit Paul, Ruta Kale, Abhirup Datta +13
Diffuse radio emission has been detected in a considerable number of galaxy clusters and groups, revealing the presence of pervasive cosmic magnetic fields, and of relativistic par…
Unveiling The Origin of Peculiar Diffuse Radio Emission in Abell 1351
Swarna Chatterjee, Majidul Rahaman, Abhirup Datta +1
Abell 1351 is a massive merging cluster that hosts a giant radio halo and a bright radio edge blended in the halo. In this paper, we present the first ever spectral analysis of thi…
On the Origin of Diffuse Radio Emission in Abell 85 -- Insights from new GMRT Observations
Majidul Rahaman, Ramij Raja, Abhirup Datta +2
Extended, steep, and ultra-steep spectrum radio emission in a galaxy cluster is usually associated with recent mergers. Simulations show that radio phoenixes are aged radio galaxy…
On the detection of multiple shock fronts in A1914 using deep Chandra X-ray observations
Majidul Rahaman, Ramij Raja, Abhirup Datta
Here, we report the new detection of three shock fronts using archival \textit{Chandra} X-ray observations in Abell 1914, which also hosts a radio halo, a radio phoenix, and a head…
An X-ray and Radio Study of the Hubble Frontier Field Cluster Abell S1063
Majidul Rahaman, Ramij Raja, Abhirup Datta +3
We present results from \textit{Chandra} X-ray observations and 325 MHz Giant Metrewave Radio Telescope (GMRT) observations of the massive and X-ray luminous cluster of galaxies Ab…
A low-frequency radio halo survey of the South Pole Telescope SZ-selected clusters with the GMRT
Ramij Raja, Majidul Rahaman, Abhirup Datta +3
The presence of non-thermal electrons and large scale magnetic fields in the intra-cluster medium (ICM) is known through the detection of mega-parsec (Mpc) scale diffuse radio sync…
Diffuse radio emission in the galaxy cluster SPT-CL J2031-4037: a steep spectrum intermediate radio halo?
Ramij Raja, Majidul Rahaman, Abhirup Datta +6
The advent of sensitive low frequency radio observations has revealed a number of diffuse radio objects with peculiar properties that are challenging our understanding about the ph…
Probing the origin of diffuse radio emission in the cool-core of the Phoenix galaxy cluster
Ramij Raja, Majidul Rahaman, Abhirup Datta +7
Cool core galaxy clusters are considered to be dynamically relaxed clusters with regular morphology and highly X-ray luminous central region. However, cool core clusters can also b…
The peculiar cluster MACS J0417.5-1154 in the C and X-bands
Pritpal Sandhu, Siddharth Malu, Ramij Raja +1
We present 5.5 and 9.0 GHz Australia Telescope Compact Array (ATCA) observations of the cluster MACSJ0417.5-1154, one of the most massive galaxy clusters and one of the brightest i…