Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Mohapatra, Abhisek"'
Autor:
Emig, Kimberly L., Gupta, Neeraj, Salas, Pedro, Muller, Sebastien, Balashev, Sergei A., Combes, Francoise, Momjian, Emmanuel, Song, Yiqing, Jagannathan, Preshanth, Deka, Partha P., Jozsa, Gyula I. G., Klockner, Hans-Rainer, Mohapatra, Abhisek, Noterdaeme, Pasquier, Petitjean, Patrick, Srianand, Raghunathan, Wagenveld, Jonah D.
We report the detection of stimulated hydrogen radio recombination line (RRL) emission from ionized gas in a $z=0.89$ galaxy using 580--1670 MHz observations from the MeerKAT Absorption Line Survey (MALS). The RRL emission originates in a galaxy that
Externí odkaz:
http://arxiv.org/abs/2301.03115
Autor:
Dabhade, Pratik, Shimwell, Timothy W., Bagchi, Joydeep, Saikia, D. J., Combes, Francoise, Gaikwad, Madhuri, Rottgering, Huub, Mohapatra, Abhisek, Ishwara-Chandra, C. H., Intema, Huib T, Raychaudhury, Somak
Publikováno v:
A&A 668, A64 (2022)
We present for the first time a study of peculiar giant radio galaxy (GRG) J223301+131502 using deep multi-frequency radio observations from GMRT (323, 612, and 1300 MHz) and LOFAR (144 MHz) along with optical spectroscopic observations with the WHT~
Externí odkaz:
http://arxiv.org/abs/2209.13059
Autor:
Maina, E. K., Mohapatra, Abhisek, Jozsa, G. I. G., Gupta, N., Combes, F., Deka, P., Wagenveld, J. D., Srianand, R., Balashev, S. A., Chen, Hsiao-Wen, Krogager, J. -K., Momjian, E., Noterdaeme, P., Petitjean, P.
We present MeerKAT Absorption Line Survey (MALS) observations of the HI gas in the Klemola31 galaxy group ($z=0.029$), located along the line of sight to the radio-loud quasar PKS2020-370 ($z=1.048$). Four galaxies of the group are detected in HI emi
Externí odkaz:
http://arxiv.org/abs/2206.09940
Autor:
Kumar, Ranjan, Pradhan, Ananta C., Parthasarathy, M., Piridi, Sonika, Cassisi, Santi, Ojha, Devendra K., Mohapatra, Abhisek, Murthy, Jayant
We have studied ultraviolet (UV) bright sources in the Galactic globular cluster (GGC) NGC 4590 using Ultraviolet Imaging Telescope (UVIT) on-board the \mbox{{\em AstroSat}} satellite. Using UV-optical color-magnitude diagrams (CMDs), we have identif
Externí odkaz:
http://arxiv.org/abs/2202.03981
Autor:
Hota, Ananda, Devaraj, Ashish, Pradhan, Ananta C., Stalin, C S, George, Koshy, Mohapatra, Abhisek, Rey, Soo-Chang, Ohyama, Youichi, Vaddi, Sravani, Pechetti, Renuka, Sethuram, Ramya, Jose, Jessy, Roy, Jayashree, Konar, Chiranjib
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 (UVIT) onboard the ASTROSAT satellite. The young star formation observed h
Externí odkaz:
http://arxiv.org/abs/2104.14325
We present a detailed analysis of 99 optically thin C III absorption systems at redshift, $0.2 \le z \le 0.9$ associated with neutral hydrogen column densities in the range, $15 \le {\rm log}$ $N_{\rm H\,I}$ ($cm^{-2}$) $\le 16.2$. Using photoionizat
Externí odkaz:
http://arxiv.org/abs/2101.00032
Autor:
Kumar, Ranjan, Pradhan, Ananta C., Mohapatra, Abhisek, Moharana, Ayush, Ojha, Devendra K., Parthasarathy, M., Murthy, Jayant
We present detailed photometric observations of the Galactic globular cluster NGC 7492 using the data obtained with two far-ultraviolet (FUV: 1300 - 1800 \AA) and three near-ultraviolet (NUV: 2000 - 3000 \AA) filters of Ultraviolet Imaging Telescope
Externí odkaz:
http://arxiv.org/abs/2012.13712
Autor:
Kumar, Ranjan, Pradhan, Ananta C., Parthasarathy, Mudumba, Ojha, Devendra K., Mohapatra, Abhisek, Murthy, Jayant, Cassisi, Santi
We present far ultraviolet (FUV) observations of globular cluster NGC 4147 using three FUV filters, BaF2 (F154W), Sapphire (F169M), and Silica (F172M) of Ultra-Violet Imaging Telescope (UVIT) on-board the \mbox{{\em AstroSat}} satellite. We confirmed
Externí odkaz:
http://arxiv.org/abs/2012.07318
Autor:
Kumar, Ranjan, Pradhan, Ananta C., Parthasarathy, M., Ojha, Devendra K., Mohapatra, Abhisek, Murthy, Jayant
Publikováno v:
Proc. IAU 14 (2019) 464-467
We have performed photometric analysis of four Galactic globular clusters (GGCs): NGC 4147, NGC 4590, NGC 5053 and NGC 7492 using far-UV and near-UV filters of the Ultraviolet Imaging Telescope (UVIT) on-board AstroSat. With the help of color-magnitu
Externí odkaz:
http://arxiv.org/abs/1908.02512
We present detailed photoionization models of well aligned optically thin C III absorption components at $2.1 < z < 3.4$. Using our models we estimate density ($n_{\rm \tiny H}$), metallicity ($[C/H]$), total hydrogen column density and line-of-sight
Externí odkaz:
http://arxiv.org/abs/1901.04510