118 citations · 296 across the 20 of their papers we have counts for
15 papers · 1 filter
The VLA-COSMOS 3 GHz Large Project: Polarised source counts and catalogue
S. Ranchod, S. A. Mao, R. P. Deane +5
The exploration of the faint polarised radio source population is essential for interpreting the nature and evolution of magnetic fields in galaxies. While recent studies have prov…
Variability of Sagittarius A* at 3 GHz on minute-scale with MeerKAT
K. Kaur, I. Rammala-Zitha, A. Basu +21
The supermassive black hole Sagittarius A* (Sgr A*) exhibits temporal and spectral variability across the electromagnetic spectrum. However, variability at radio frequencies below…
MeerKAT observations of the spiral galaxy NGC 2997 in the S band. Detection of high dynamo modes
A. Damas-Segovia, R. Beck, S. A. Mao +18
We seek to exploit the expanded observational range of the MeerKAT radio telescope with the new S-band receivers (2.0-2.8 GHz). To showcase its enhanced capabilities, we conducted…
The MeerKAT Absorption Line Survey (MALS) data release 3: Cold atomic gas associated with the Milky Way
N. Gupta, J. Kerp, S. A. Balashev +15
We present results of a blind search for Galactic HI 21-cm absorption lines toward 19130 radio sources, using 390 pointings of MALS, each pointing centered on a source brighter tha…
A first glimpse at the MeerKAT DEEP2 field at S-band
S. Ranchod, J. D. Wagenveld, H. -R. Klöckner +15
We present the first widefield extragalactic continuum catalogue with the MeerKAT S-band (2.5 GHz), of the radio-selected DEEP2 field. The combined image over the S1 (1.96 - 2.84 G…
MALS discovery of a rare HI 21-cm absorber at : origin of the absorbing gas in powerful AGN
P. P. Deka, N. Gupta, H. W. Chen +14
We report a new, rare detection of HI 21-cm absorption associated with a quasar (only six known at ) here towards J2339-5523 at = 1.3531, discovered through the Mee…
The MeerKAT Absorption Line Survey (MALS) data release I: Stokes I image catalogs at 1-1.4 GHz
P. P. Deka, N. Gupta, P. Jagannathan +24
The MeerKAT Absorption Line Survey (MALS) has observed 391 telescope pointings at L-band (900 - 1670 MHz) at . We present radio continuum images and a catalog of…
Discovery of Hydrogen Radio Recombination Lines at z=0.89 towards PKS 1830-211
Kimberly L. Emig, Neeraj Gupta, Pedro Salas +14
We report the detection of stimulated hydrogen radio recombination line (RRL) emission from ionized gas in a galaxy using 580--1670 MHz observations from the MeerKAT Absor…
PKS1413+135: OH and HI at z = 0.247 with MeerKAT
F. Combes, N. Gupta, S. Muller +13
The BL Lac PKS 1413+135 was observed by the Large Survey Project "MeerKAT Absorption Line Survey" (MALS) in the L-band, at 1139 MHz and 1293-1379 MHz, targeting the HI and OH lines…
Discovery of 24 radio-bright quasars at using low-frequency radio observations
A. J. Gloudemans, K. J. Duncan, A. Saxena +18
High redshift quasars () that also shine brightly at radio wavelengths are unique signposts of supermassive black hole activity in the early universe. However, bright radio so…
Mapping HI 21-cm in the Klemola 31 group at z = 0.029: emission and absorption towards PKS2020-370
E. K. Maina, Abhisek Mohapatra, G. I. G. Jozsa +11
We present MeerKAT Absorption Line Survey (MALS) observations of the HI gas in the Klemola31 galaxy group (), located along the line of sight to the radio-loud quasar PKS2…
Revealing new high redshift quasar populations through Gaussian mixture model selection
J. D. Wagenveld, A. Saxena, K. J. Duncan +2
We present a novel method to identify candidate high redshift quasars (HzQs; (), which are unique probes of supermassive black hole growth in the early Universe, from…
MALS SALT-NOT survey of MIR-selected powerful radio-bright AGN at 0<z<3.5
N. Gupta, G. Shukla, R. Srianand +20
We present results of an optical spectroscopic survey using SALT and NOT to build a WISE mid-infrared color-based, dust-unbiased sample of powerful radio-bright (200 mJy at 1.4…
The LOFAR Two Metre Sky Survey: Deep Fields Data Release 1 -- III. Host-galaxy identifications and value added catalogues
R. Kondapally, P. N. Best, M. J. Hardcastle +40
We present the source associations, cross-identifications, and multi-wavelength properties of the faint radio source population detected in the deep tier of the LOFAR Two Metre Sky…
Blind HI and OH absorption line search: first results with MALS and uGMRT processed using ARTIP
N. Gupta, P. Jagannathan, R. Srianand +32
We present details of the Automated Radio Telescope Imaging Pipeline (ARTIP) and results of a sensitive blind search for HI and OH absorbers at and , respectively. A…