activity
20012026
most citedA massive binary black-hole system in OJ287 and a test of general relativity

416 citations · 718 across the 10 of their papers we have counts for

collaborators

9 papers

astro-ph.SR2026

CoBiToM project. III. Physical characterisation of the potential merger candidates AL Lep, ASAS J082243+1927.0, and ZZ PsA

Sofia Palafouta, Kosmas D. Gazeas, Pasi Hakala +3

Contact binaries (CBs) are key systems for investigating the late evolutionary stages that may lead to stellar coalescence. Systems with an extremely low mass ratio and high fill-o…

astro-ph.EP2025★ 2 cited

Asteroid sizes determined with thermophysical model and stellar occultations

A. Choukroun, A. Marciniak, J. Ďurech +165

Context. The sizes of many asteroids, especially slowly rotating, low-amplitude targets, remain poorly constrained due to selection effects. These biases limit the availability of…

astro-ph.HE2020★ 23 cited

X-ray, UV and optical time delays in the bright Seyfert galaxy Ark 120 with co-ordinated Swift and ground-based observations

A. P. Lobban, S. Zola, U. Pajdosz-Smierciak +17

We report on the results of a multiwavelength monitoring campaign of the bright, nearby Seyfert galaxy, Ark 120 using a ~50-day observing programme with Swift and a ~4-month co-ord…

astro-ph.SR2012★ 41 cited

Empirical Determination of Convection Parameters in White Dwarfs I : Whole Earth Telescope Observations of EC14012-1446

J. L. Provencal, M. H. Montgomery, A. Kanaan +55

We report on analysis of 308.3 hrs of high speed photometry targeting the pulsating DA white dwarf EC14012-1446. The data were acquired with the Whole Earth Telescope (WET) during…

astro-ph2008★ 416 cited

A massive binary black-hole system in OJ287 and a test of general relativity

M. J. Valtonen, H. J. Lehto, K. Nilsson +23

Tests of Einstein's general theory of relativity have mostly been carried out in weak gravitational fields where the space-time curvature effects are first-order deviations from Ne…

astro-ph2008★ 29 cited

Whole Earth Telescope observations of the hot helium atmosphere pulsating white dwarf EC 20058-5234

WET Collaboration, D. J. Sullivan, T. S. Metcalfe +22

We present the analysis of a total of 177h of high-quality optical time-series photometry of the helium atmosphere pulsating white dwarf (DBV) EC 20058-5234. The bulk of the observ…