activity
19972026
most citedA probable stellar solution to the cosmological lithium discrepancy

322 citations · 1.6k across the 20 of their papers we have counts for

collaborators

23 papers

astro-ph.HE2026

Assessing the detectability and identification of pulsar halos with H.E.S.S. and CTAO

Karim Sabri, Yves Gallant, Justine Devin

Pulsar halos are a class of extended gamma-ray sources, resulting from inverse Compton scattering of ambient photons by electrons and positrons believed to have escaped confinement…

astro-ph.GA2026

Non-LTE atmosphere models of very luminous sources and their applicability to Little Red Dots, quasi-stars, and similar objects

Fabrice Martins, Daniel Schaerer, Rui Marques-Chaves

We investigate whether atmosphere models traditionally used for massive stars with strong winds can produce synthetic spectra morphologically similar to those of Little Red Dots (L…

astro-ph.HE2025

HESS J1831098 -- Exploring a pulsar halo scenario with H.E.S.S. data

Karim Sabri, Yves Gallant, Justine Devin +1

Pulsar halos are a class of extended very-high-energy (VHE) sources highlighted by the HAWC observatory towards the Geminga pulsar and PSR B065614. These VHE sources are interpr…

astro-ph.IM2025

Very Massive Stars with the Habitable Worlds Observatory

Fabrice Martins, Aida Wofford, Miriam Garcia +3

Very massive stars (VMS) are defined as stars with an initial mass in excess of 100 Msun. Because of their short lifetime and the shape of the stellar mass function, they are rare…

astro-ph.GA2024★ 20 cited

Euclid: The Early Release Observations Lens Search Experiment

J. A. Acevedo Barroso, C. M. O'Riordan, B. Clément +206

We investigated the ability of the Euclid telescope to detect galaxy-scale gravitational lenses. To do so, we performed a systematic visual inspection of the Eucl…

astro-ph.IM2019

The Cherenkov Telescope Array Performance in Divergent Mode

A. Donini, T. Gasparetto, J. Bregeon +5

Two of the Key Science Projects of the Cherenkov Telescope Array (CTA) consist in performing a deep survey of the Galactic and Extragalactic sky, providing an unbiased view of the…