activity
20172026
most citedRole of intervening Mg II absorbers on the rotation measure and fractional polarisation of the background quasars

21 citations · 42 across the 8 of their papers we have counts for

collaborators

11 papers

astro-ph.GA2026

Small-scale Magnetic Fields in the Milky Way and Nearby Galaxies

Yik Ki Ma, Amit Seta, Aritra Basu +13

Magnetic fields in galaxies span decades in physical scale, from the coherent magnetic fields on galactic scales (> kpc) to the random magnetic fields from 100 pc to the resistive…

astro-ph.GA2026

The Rapid ASKAP Continuum Survey VII: Spectra and Polarisation In Cutouts of Extragalactic Sources (SPICE-RACS) Second Data Release -- Unveiling the Magnetised Sky

Alec J. M. Thomson, Timothy J. Galvin, Stefan W. Duchesne +18

We present the second data release (DR2) of Spectra and Polarisation in Cutouts of Extragalactic sources from RACS (SPICE-RACS). SPICE-RACS DR2 is derived from the third low-band e…

astro-ph.GA2026★ 1 cited

Magnetised CGM Gas at z~1 revealed by SPICE-RACS

Sunil Malik, S. P. O'Sullivan, A. J. M. Thomson +17

Magnetic fields are expected to permeate the circumgalactic medium (CGM) of galaxies, yet direct constraints at high redshift remain limited by the lack of high-quality Faraday rot…

gr-qc2023★ 6 cited

Fast Radio Bursts signal high-frequency gravitational waves

Ashu Kushwaha, Sunil Malik, S. Shankaranarayanan

There is growing evidence for high-frequency gravitational waves (HFGWs) ranging from MHz to GHz. Several HFGW detectors have been operating for over a decade, and two GHz events h…

astro-ph.HE2023

Study of Magnetic Field and Turbulence in the TeV halo around Monogem Pulsar

Sunil Malik, Ka Ho Yuen, Huirong Yan

Magnetic fields are ubiquitous in the interstellar medium, including extended objects such as supernova remnants and diffuse halos around Pulsars. Its turbulent characteristics gov…

astro-ph.GA2023★ 14 cited

Diagnosis of 3D magnetic field and modes composition in MHD turbulence with Y-parameter

Sunil Malik, Ka Ho Yuen, Huirong Yan

Magnetic fields are crucial in numerous astrophysical processes within the interstellar medium. However, the detailed determination of magnetic field geometry is notoriously challe…

astro-ph.CO2022

Thermal SZ effect in a magnetized IGM dominated by interacting DM decay/annihilation during dark ages

Arun Kumar Pandey, Sunil Malik

During cosmic dawn, the thermal history of the universe is well studied, and a study of this era can give us some of the most useful insight into the universe before the recombinat…

astro-ph.HE2022

Gertsenshtein-Zeldovich effect: A plausible explanation for fast radio bursts?

Ashu Kushwaha, Sunil Malik, S. Shankaranarayanan

We present a novel model that may provide an interpretation for a class of non-repeating FRBs -- short (), bright () bursts of MHz-GHz frequency radi…

astro-ph.CO2020

Implications of baryon-dark matter interaction on IGM temperature and tSZ effect with magnetic field

Arun Kumar Pandey, Sunil Malik, T. R. Seshadri

We show that the combined effect of cosmic magnetic field and a possible non-standard interaction between baryons and dark matter has interesting consequences on the thermal Sunyae…

astro-ph.CO2019

Impact of magnetic field on the gas mass fraction of galaxy clusters

Sandhya Jagannathan, Sunil Malik, Deepak Jain +1

Magnetic fields have been observed in galaxy clusters with strengths of the order of G. The non-thermal pressure exerted by magnetic fields also contributes to the total pr…

astro-ph.GA2017★ 21 cited

Role of intervening Mg II absorbers on the rotation measure and fractional polarisation of the background quasars

Sunil Malik, Hum Chand, T. R. Seshadri

We probed the magnetic fields in high-redshift galaxies using excess extragalactic contribution to residual rotation measure (RRM) for quasar sightlines with intervening Mg II abso…