activity
20212026
most citedV-LoTSS: The Circularly-Polarised LOFAR Two-metre Sky Survey

39 citations · 76 across the 11 of their papers we have counts for

collaborators

12 papers

astro-ph.EP2026

Discovering and Characterising Exoplanets and Ultracool Dwarfs with the Square Kilometre Array

Robert D. Kavanagh, Juan B. Climent, Philippe Zarka +14

The majority of the Solar System planets are sources of bright radio emission, driven by energetic electrons trapped within each planet's magnetic field. Detection of this emission…

astro-ph.EP2026

Radio emission from star-planet interactions

H. K. Vedantham, A. Strugarek, C. K. Louis +12

Stars interact with their exoplanets though gravity, radiation, plasma and magnetic fields. Stellar plasma and magnetic fields impose electrodynamic effects on exoplanet atmosphere…

astro-ph.HE2025★ 1 cited

Revealing the accelerating wind in the inner region of the colliding-wind binary WR 112

John D. Monnier, Yinuo Han, Michael F. Corcoran +17

Colliding winds in massive binaries generate X-ray-bright shocks, synchrotron radio emission, and sometimes even dusty "pinwheel" spirals. We report the first X-ray detections of t…

astro-ph.SR2025

Occurrence rate of stellar Type II radio bursts from a 100 star-year search for coronal mass ejections

David C. Konijn, Harish K. Vedantham, Cyril Tasse +8

Coronal mass ejections (CMEs) are major drivers of space weather in the Solar System, but their occurrence rate on other stars is unknown. A characteristic (deca-)metric radio burs…

astro-ph.SR2025★ 12 cited

Radio Burst from a Stellar Coronal Mass Ejection

J. R. Callingham, C. Tasse, R. Keers +15

Coronal mass ejections (CMEs) are massive expulsions of magnetised plasma from a star, and are the largest contributors to space weather in the Solar System. CMEs are theorized to…

astro-ph.HE2025

Strongly polarised radio pulses from a new white-dwarf-hosting long-period transient

Sanne Bloot, Harish K. Vedantham, Cees G. Bassa +6

Long-period transients (LPTs) are a new and enigmatic class of objects that produce bright pulsations in the radio, with periods far exceeding those seen in rotationally powered pu…

astro-ph.EP2025

Close-in planet induces flares on its host star

Ekaterina Ilin, Harish K. Vedantham, Katja Poppenhäger +4

In the past decade, hundreds of exoplanets have been discovered in extremely short orbits below 10 days. Unlike in the Solar System, planets in these systems orbit their host stars…

astro-ph.SR2025★ 6 cited

Catching the wisps: Stellar mass-loss limits from low-frequency radio observations

Sanne Bloot, Harish K. Vedantham, Robert D. Kavanagh +2

The winds of low-mass stars carry away angular momentum and impact the atmospheres of surrounding planets. Determining the properties of these winds is necessary to understand the…

astro-ph.EP2024★ 9 cited

Unravelling sub-stellar magnetospheres

Robert D Kavanagh, Harish K Vedantham, Kovi Rose +1

At the sub-stellar boundary, signatures of magnetic fields begin to manifest at radio wavelengths, analogous to the auroral emission of the magnetised solar system planets. This em…

astro-ph.SR2023

Phenomenology and periodicity of radio emission from the stellar system AU Microscopii

Sanne Bloot, Joseph R. Callingham, Harish K. Vedantham +6

Stellar radio emission can measure a star's magnetic field strength and structure, plasma density and dynamics, and the stellar wind pressure impinging on exoplanet atmospheres. Ho…

astro-ph.GA2022★ 39 cited

V-LoTSS: The Circularly-Polarised LOFAR Two-metre Sky Survey

J. R. Callingham, T. W. Shimwell, H. K. Vedantham +44

We present the detection of 68 sources from the most sensitive radio survey in circular polarisation conducted to date. We use the second data release of the 144 MHz LOFAR Two-metr…

astro-ph.SR2021★ 9 cited

Radio modelling of the brightest and most luminous non-thermal colliding-wind binary Apep

S. Bloot, J. R. Callingham, B. Marcote

Apep is the brightest and most luminous non-thermal colliding-wind binary by over an order of magnitude. It has been suggested from infrared observations that one of the Wolf-Rayet…