activity
20202025
most citedWhispering in the dark: Faint X-ray emission from black holes with OB star companions

12 citations · 19 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.SR2025★ 2 cited

Interferometric view into RT Pav's long secondary period. binary vs oscillatory convective modes

B. Courtney-Barrer, X. Haubois, P. Wood +6

Long secondary periods (LSPs) occur in about one-third of evolved stars, yet their origin remains unclear. The leading explanations are oscillatory convective modes and a binary co…

astro-ph.SR2025

Characterizing the Post-Red Supergiant binary system AFGL 4106 and its complex nebula with SPHERE/VLT

G. Tomassini, E. Lagadec, I. El Mellah +6

Aims: We aim to characterize the physical and morphological properties of the binary system AFGL 4106, composed of two evolved massive stars. Understanding its mass-loss processes…

astro-ph.HE2025★ 4 cited

Don't torque like that. Measuring compact object magnetic fields with analytic torque models

J. J. R. Stierhof, E. Sokolova-Lapa, K. Berger +10

Context. Changes of the rotational period observed in various magnetized accreting sources are generally attributed to the interaction between the in-falling plasma and the large-s…

astro-ph.HE2024★ 12 cited

Whispering in the dark: Faint X-ray emission from black holes with OB star companions

Koushik Sen, Ileyk El Mellah, Norbert Langer +3

Context. Recent astrometric and spectroscopic surveys of OB stars have revealed a few stellar-mass black holes (BHs) with orbital periods as low as 10 days. No X-ray counterpart ha…

astro-ph.HE2020★ 1 cited

Radiography in high mass X-ray binaries -- Micro-structure of the stellar wind through variability of the column density

I. El Mellah, V. Grinberg, J. O. Sundqvist +2

In high mass X-ray binaries (HMXBs), an accreting compact object orbits a high mass star which loses mass through a dense and inhomogeneous wind. Using the compact object as an X-r…