23 citations · 36 across the 8 of their papers we have counts for
8 papers
The Quasar Feedback Survey: Revealing the importance of sensitive radio imaging for AGN identification deeper into the radio-quiet regime
Ann Njeri, Chris M. Harrison, Preeti Kharb +8
We present new sub-arcsecond (0.3-1 arcsec; 1--3\,kpc) VLA imaging at 1.4\,GHz and 6\,GHz of 29 optically-selected, [O~{\sc iii}] luminous ( > 10$^{42.…
Connection between steep radio spectral slopes and dust extinction in QSOs: evidence for outflow-driven shocks in dusty QSO
V. A. Fawcett, C. M. Harrison, D. M. Alexander +9
Recent studies have found a striking positive correlation between the amount of dust obscuration and enhanced radio emission in quasi-stellar objects (QSOs). However, what causes t…
The Quasar Feedback Survey: zooming into the origin of radio emission with e-MERLIN
Ann Njeri, Chris M. Harrison, Preeti Kharb +7
We present 6 GHz e-MERLIN observations of 42 type 1 and type 2 mostly radio-quiet quasars ( erg s; erg s$^{-…
A large jet narrow-line Seyfert 1 galaxy: observations from pc to 100 kpc scales
Sina Chen, Preeti Kharb, Silpa Sasikumar +11
We present new 1.5-8.5 GHz Very Long Baseline Array (VLBA) observations and 0.32-1.26 GHz Giant Meterwave Radio Telescope (GMRT) observations of J0354-1340, which is the only known…
A detailed study of the polarisation convention of the Giant Metrewave Radio Telescope
Poonam Chandra, S. Suresh Kumar, Sanjay Kudale +5
Our work aims to investigate the polarisation convention of the Giant Metrewave Radio Telescope (GMRT) radio telescope and understand whether the telescope follows the standard IAU…
uGMRT Band 4 Polarimetry
Preeti Kharb, Silpa Sasikumar, Janhavi Baghel +1
This is a technical report for band 4 (550-900 MHz) polarization data with the upgraded GMRT (uGMRT). The report describes the band 4 polarization data analysis procedure and inclu…
The Quasar Feedback Survey: Revealing the Interplay of Jets, Winds & Emission Line Gas in Type 2 Quasars with Radio Polarization
Silpa Sasikumar, P. Kharb, C. M. Harrison +4
We present results from a combined radio polarization and emission line study of five type 2 quasars at with the Karl G. Jansky Very Large Array (VLA) B-array at 5 GHz and…
Looking at Radio-Quiet AGN with Radio Polarimetry
Silpa S., P. Kharb
The dominant radio emission mechanism in radio-quiet quasars (RQQs) is an open question. Primary contenders include: low-power radio jets, winds, star-formation and coronal emissio…