activity
20002026
most citedRapid optical and X-ray timing observations of GX 339-4: flux correlations at the onset of a low/hard state

97 citations · 951 across the 33 of their papers we have counts for

collaborators

29 papers

astro-ph.SR2026

No Period Change in Two Long-Period AM CVn Binaries

Matthew J. Green, Thomas R. Marsh, Jan van Roestel +25

Ultracompact binary systems, consisting of two compact objects in an orbit , should exhibit measurable rates of orbital period change () due t…

astro-ph.EP2026

Investigation of Transit Timing and an Optical Transmission Spectrum of the Hot Jupiter WASP-11 b

Napaporn A-thano, Supachai Awiphan, Eamonn Kerins +15

WASP-11~b/HAT-P-10~b is an inflated hot Jupiter, which has a low density that makes it a good target for atmospheric studies using the transmission spectroscopy technique. In this…

astro-ph.EP2026

Time-Domain Photometry and Activity Evolution of Interstellar Comet 3I/ATLAS with BHTOM

A. Fraser Gillan, Łukasz Wyrzykowski, Przemysław J. Mikołajczyk +69

Time-domain photometric monitoring is essential for characterizing cometary evolution, particularly for rare interstellar objects with limited observing opportunities. We aimed to…

astro-ph.SR2025

Unveiling the white dwarf in the eclipsing polar HU Aquarii

A. D. Schwope, T. R. Marsh, S. G. Parsons +2

We present an analysis of high-speed u- and r-band photometry of the eclipsing polar HU Aquarii that was obtained with ULTRACAM mounted on the VLT. The observations were performed…

astro-ph.HE2025

Testing disc reprocessing models for AGN optical variability by comparison of X-ray and optical power spectra of NGC 4395

Max Beard, Ian McHardy, Keith Horne +11

It is generally thought that AGN optical variability is produced, at least in part, by reprocessing of central X-rays by a surrounding accretion disc, resulting in wavelength-depen…

astro-ph.EP2024

The frequency of transiting planetary systems around polluted white dwarfs

Akshay Robert, Jay Farihi, Vincent Van Eylen +6

This paper investigates the frequency of transiting planetary systems around metal-polluted white dwarfs using high-cadence photometry from ULTRACAM and ULTRASPEC on the ground, an…