Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Ruta Kale"'
Publikováno v:
The Astrophysical Journal Letters, Vol 957, Iss 1, p L4 (2023)
We report a discovery of a large-scale bent radio jet in the merging galaxy cluster A514 ( z = 0.071). The radio emission originates from the two radio lobes of the active galactic nucleus (AGN) located near the center of the southern subcluster and
Externí odkaz:
https://doaj.org/article/63622d766646429cb7a888fa9f00abfd
Autor:
Ruta, Kale, Dwarakanath, K. S.
We present a multi-wavelength analysis of the merging rich cluster of galaxies Abell 2256. We have observed A2256 at 150 MHz using the Giant Metrewave Radio Telescope and successfully detected the diffuse radio halo and the relic emission over an ext
Externí odkaz:
http://arxiv.org/abs/1005.3604
Autor:
Kohei Kurahara, Takuya Akahori, Ruta Kale, Hiroki Akamatsu, Yutaka Fujita, Liyi Gu, Huib Intema, Kazuhiro Nakazawa, Nobuhiro Okabe, Yuki Omiya, Viral Parekh, Timothy Shimwell, Motokazu Takizawa, Reinout J Van Weeren
Publikováno v:
Publications of Astronomical Society of Japan, 75(Supplement 1), S138-S153
We report on results of our upgraded Giant Metrewave Radio Telescope (uGMRT) observations for an early-stage merging galaxy cluster, CIZA J1358.9-4750 (CIZA1359), in Band-3 (300--500 MHz). We achieved the image dynamic range of $\sim 38,000$ using th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::140c49b6abdf3e5528205f494ad660ea
http://hdl.handle.net/1887/3514246
http://hdl.handle.net/1887/3514246
Radio Frequency Interference (RFI) of impulsive nature is created by sources like sparking on high-power transmission lines due to gap or corona discharge and automobile sparking, and it affects the entire observing frequency bands of low-frequency r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::193eb1685cb9721049651e7e57308e56
Autor:
Surajit Paul, Ruta Kale, Abhirup Datta, Aritra Basu, Sharanya Sur, Viral Parekh, Prateek Gupta, Swarna Chatterjee, Sameer Salunkhe, Asif Iqbal, Mamta Pandey-Pommier, Ramij Raja, Majidul Rahaman, Somak Raychaudhury, Biman B. Nath, Subhabrata Majumdar
Publikováno v:
J.Astrophys.Astron.
J.Astrophys.Astron., 2023, 44 (1), pp.38. ⟨10.1007/s12036-023-09914-2⟩
J.Astrophys.Astron., 2023, 44 (1), pp.38. ⟨10.1007/s12036-023-09914-2⟩
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 particles in the large-scale structure (LSS) of the Universe. Since clust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7aa38d58c42eef52c22b58f6d6728d96
https://hal.science/hal-03862322
https://hal.science/hal-03862322
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 509:1837-1847
We present original Giant Metrewave Radio Telescope (GMRT) radio observations of the galaxy cluster Abell 725, at a redshift (z) of 0.09, along with other archival observations. Our GMRT maps reveal two steep-spectrum diffuse filaments in the cluster
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10a0acecacd11467b4199f6282d1a75f
https://doi.org/10.1093/mnras/stab2945
https://doi.org/10.1093/mnras/stab2945
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 507:4487-4506
We have used archival Giant Metrewave Radio Telescope (GMRT) data to image and study 39 galaxy clusters. These observations were made as part of the GMRT Key Project on galaxy clusters between 2001 and 2004. The observations presented in this sample
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ecdf088fc56ed3d34fe0283da8172ef
https://doi.org/10.1093/mnras/stab2309
https://doi.org/10.1093/mnras/stab2309
Autor:
S. Makhatini, Oleg Smirnov, Simona Giacintucci, B. Hugo, Tiziana Venturi, Mario Nonino, Gianni Bernardi, Daniele Dallacasa, V. Parekh, Ruta Kale, B. Terni de Gregory
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 504:2924-2939
In this paper we present results from a radio-optical study of the galaxy populations of the galaxy clusters Abell 1300 and MACS J1931.8$-$2634, a merger and a relaxed system respectively both located at $z \sim 0.3$, aimed at finding evidence of mer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc7a14c1e9fbb5726ae12ab90d7f82fb
https://doi.org/10.1093/mnras/stab964
https://doi.org/10.1093/mnras/stab964
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 504:610-620
RXCJ0232.2–4420, at z = 0.28, is a peculiar system hosting a radio halo source around the cool-core of the cluster. To investigate its formation and nature, we used archival Chandra and XMM–Newton X-ray data to study the dynamical state of the cl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ede8f44b89c4ce67bb1406ad4bddb8d0
https://doi.org/10.1093/mnras/stab779
https://doi.org/10.1093/mnras/stab779
Autor:
Ruta Kale, C. H. Ishwara-Chandra
Publikováno v:
Experimental Astronomy. 51:95-108
We present the first fully automated pipeline for making images from the interferometric data obtained from the upgraded Giant Metrewave Radio Telescope (uGMRT) called CAsa Pipeline-cum-Toolkit for Upgraded Giant Metrewave Radio Telescope data REduct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9545d7e8085c38f1cd421420f0ed27e
https://doi.org/10.1007/s10686-020-09677-6
https://doi.org/10.1007/s10686-020-09677-6