A numerical investigation of wind accretion in persistent supergiant X-ray binaries–I. Structure of the flow at the orbital scale

I El Mellah, F Casse - Monthly Notices of the Royal Astronomical …, 2017 - academic.oup.com
Classical supergiant X-ray binaries host a neutron star orbiting a supergiant OB star and
display persistent X-ray luminosities of 1035–1037 erg s− 1. The stellar wind from the …

Clumpy wind accretion in supergiant neutron star high mass X-ray binaries

E Bozzo, L Oskinova, A Feldmeier… - Astronomy & …, 2016 - aanda.org
The accretion of the stellar wind material by a compact object represents the main
mechanism powering the X-ray emission in classical supergiant high mass X-ray binaries …

Formation of wind-captured disks in supergiant X-ray binaries-Consequences for Vela X-1 and Cygnus X-1

I El Mellah, AAC Sander, JO Sundqvist… - Astronomy & …, 2019 - aanda.org
Context. In supergiant X-ray binaries (SgXB), a compact object captures a fraction of the
wind of an O/B supergiant on a close orbit. Proxies exist to evaluate the efficiency of mass …

Accretion from a clumpy massive-star wind in supergiant X-ray binaries

I El Mellah, JO Sundqvist… - Monthly Notices of the …, 2018 - academic.oup.com
Supergiant X-ray binaries (sgxb) host a compact object, often a neutron star (NS), orbiting an
evolved O/B star. Mass transfer proceeds through the intense line-driven wind of the stellar …

The structure of blue supergiant winds and the accretion in supergiant high-mass X-ray binaries

L Ducci, L Sidoli, S Mereghetti, A Paizis… - Monthly Notices of the …, 2009 - academic.oup.com
We have developed a stellar wind model for OB supergiants to investigate the effects of
accretion from a clumpy wind on the luminosity and variability properties of high-mass X-ray …

A semi-analytical treatment to wind accretion in neutron star supergiant high-mass X-ray binaries–I. Eccentric orbits

E Bozzo, L Ducci, M Falanga - Monthly Notices of the Royal …, 2021 - academic.oup.com
We present in this paper a first step toward a semi-analytical treatment of the accretion
process in wind-fed neutron star (NS) supergiant X-ray binaries with eccentric orbits. We …

Really focused stellar winds in X-ray binaries

P Hadrava, J Čechura - Astronomy & Astrophysics, 2012 - aanda.org
Aims. We investigate the anisotropy of stellar winds in binaries to improve the models of
accretion in high-mass X-ray binaries. Methods. We model numerically the stellar wind from …

Towards a unified view of inhomogeneous stellar winds in isolated supergiant stars and supergiant high mass X-ray binaries

S Martínez-Núñez, P Kretschmar, E Bozzo… - Space Science …, 2017 - Springer
Massive stars, at least∼ 10 \sim10 times more massive than the Sun, have two key
properties that make them the main drivers of evolution of star clusters, galaxies, and the …

Accretion in supergiant High Mass X-ray Binaries

A Manousakis, R Walter, J Blondin - EPJ Web of Conferences, 2014 - epj-conferences.org
Supergiant High Mass X-ray Binary systems (sgHMXBs) consist of a massive, late type, star
and a neutron star. The massive stars exhibits strong, radiatively driven, stellar winds. Wind …

Stellar wind accretion in high-mass X-ray binaries

I Negueruela - arXiv preprint arXiv:0907.2883, 2009 - arxiv.org
Recent discoveries have confirmed the existence of a large population of X-ray sources
fuelled by accretion from the stellar wind of an OB supergiant. Such systems are powerful …