activity
19952026
most citedUltraluminous X-Ray Sources in External Galaxies

736 citations · 1.8k across the 21 of their papers we have counts for

collaborators

22 papers

astro-ph.EP2026

Searching for hot water world candidates with CHEOPS: II. A low-density super-Earth orbiting the K dwarf TOI-2211

J. A. Egger, P. Cortés-Zuleta, D. Kubyshkina +98

Small exoplanets on close-in orbits are exposed to high levels of stellar irradiation, which can effectively remove low-mass primordial H/He envelopes through atmospheric escape. U…

astro-ph.GA2025

Gas in Globular Clusters I: Gas Retention and Its Possible Consequences

Alexey Bobrick, Melvyn B. Davies, Hagai B. Perets

Globular clusters host complex stellar populations whose chemical signatures suggest early (3 Myr - 1 Gyr) retention and reprocessing of stellar ejecta, yet direct evidence for int…

astro-ph.GA2025

Insights into spatial mixing of multiple populations in dynamically-young globular clusters

Václav Pavlík, Melvyn B. Davies, Ellen I. Leitinger +5

Many galactic globular clusters (GCs) contain at least two stellar populations. Recent observational studies found that the radial distributions of the first (P1) and second popula…

astro-ph.GA2025★ 2 cited

Spatial mixing of stellar populations in globular clusters via binary-single star scattering

Václav Pavlík, Melvyn B. Davies, Ellen I. Leitinger +5

The majority of Galactic globular star clusters (GCs) have been reported to contain at least two populations of stars (we use P1 for the primordial and P2 for the chemically-enrich…

astro-ph.EP2024★ 3 cited

In-situ observations of resident space objects with the CHEOPS space telescope

Nicolas Billot, Stephan Hellmich, Willy Benz +80

The CHaracterising ExOPlanet Satellite (CHEOPS) is a partnership between the European Space Agency and Switzerland with important contributions by 10 additional ESA member States.…

astro-ph.EP2024

Discovery of two warm mini-Neptunes with contrasting densities orbiting the young K3V star TOI-815

Angelica Psaridi, Hugh Osborn, François Bouchy +130

We present the discovery and characterization of two warm mini-Neptunes transiting the K3V star TOI-815 in a K-M binary system. Analysis of the spectra and rotation period reveal i…