activity
19962026
most citedTowards a unified view of inhomogeneous stellar winds in isolated supergiant stars and supergiant high mass X-ray binaries

144 citations · 2.8k across the 162 of their papers we have counts for

collaborators

166 papers

astro-ph.HE2026

Evidence for a luminosity-class dichotomy in the supergiant donors of persistent high-mass X-ray binaries and supergiant fast X-ray transients

Lara Sidoli, Vito Sguera

We have investigated the properties of the supergiant donors in two types of high-mass X-ray binaries (HMXBs, i.e. the so-called supergiant fast X-ray transients (SFXTs) and the cl…

astro-ph.HE2026

A candidate proton cyclotron feature in the ultraluminous X-ray source NGC 4656 ULX-1

Nelson Cruz-Sanchez, Enzo A. Saavedra, Federico A. Fogantini +6

Ultraluminous X-ray sources represent extreme super-Eddington accretion regimes, and a subset is now known to host highly magnetized neutron stars. However, direct observational pr…

astro-ph.HE2025★ 2 cited

The very faint X-ray transient Swift J174610-290018 at the Galactic center

Giovanni Stel, Gabriele Ponti, Nathalie Degenaar +17

Very Faint X-ray Transients (VFXTs) are a class of X-ray binary systems that exhibit occasional outbursts with peak X-ray luminosities (L_X< 1e36 erg s^-1) much lower than typical…

astro-ph.HE2025

Deep Chandra X-ray observation of the isolated black hole OGLE-2011-BLG-0462

Sandro Mereghetti, Lara Sidoli, Gabriele Ponti +1

OGLE-2011-BLG-0462 is an isolated black hole of ~7 solar masses at a distance of 1.5 kpc identified thanks to the astrometric microlensing technique. It is the first specimen disco…

astro-ph.HE2024★ 2 cited

The role of XMM-Newton in the investigation of persistent BeXRBs

N. La Palombara, L. Sidoli, S. Mereghetti +5

The persistent BeXRBs are a class of High-Mass X-ray Binaries (HMXRBs), which are characterized by persistent low X-ray luminosities ( erg s) and wid…

astro-ph.HE2024★ 6 cited

The Orbit of NGC 5907 ULX-1

Andrea Belfiore, Ruben Salvaterra, Lara Sidoli +13

We report on the orbit of the binary system powering the most extreme ultraluminous X-ray pulsar known to date: NGC 5907 ULX-1 (hereafter ULX1). ULX1 has been the target of a subst…