activity
20002026
most citedA relativistically smeared spectrum in the neutron star X-ray Binary 4U 1705-44: Looking at the inner accretion disc with X-ray spectroscopy

85 citations · 3.1k across the 133 of their papers we have counts for

collaborators

135 papers

astro-ph.HE2026

Detection of kilosecond hard lags in the new pulsating ULX candidate NGC 7456 ULX-1

W. Leone, F. Pintore, C. Pinto +19

Context. Ultraluminous X-ray sources (ULXs) are thought to be powered, in many cases, by super-Eddington accretion onto compact objects. While soft X-ray lags have been detected in…

astro-ph.HE2026

4U 1624-490 as a possible intermediate-mass X-ray binary: constraints from XRISM and NuSTAR spectroscopy

R. Iaria, A. Anitra, T. Di Salvo +7

High-inclination dipping neutron-star X-ray binaries provide a direct view of accretion-flow structure because the line of sight intercepts ionised plasma above the disc. We analys…

astro-ph.HE2026

The first IXPE view of the eclipsing ADC source 4U 1822-37

A. Anitra, A. Gnarini, T. Di Salvo +17

Accretion-disc corona sources are high-inclination low-mass X-ray binaries in which the innermost regions are hidden and the observed X-ray emission is dominated by radiation scatt…

astro-ph.HE2026

CubeSats Reach the Millisecond X-Ray Domain: Crab Pulsar Timing with SpIRIT/HERMES

Wladimiro Leone, R. Mearns, T. Di Salvo +70

The High Energy Rapid Modular Ensemble of Satellites (HERMES) instrument is a compact X/-ray spectrometer operating on board the 6U (11 kg) SpIRIT CubeSat. The payload is partic…

astro-ph.HE2025

Flashing fast: characterising the 2025 outburst of MAXI J1957+032

A. Sanna, G. Illiano, M. C. Baglio +13

MAXI J1957+032 is an accreting millisecond X-ray pulsar that shows brief, recurrent outbursts in an ultra-compact ~1 h orbit. We characterise the 2025 outburst using X-ray timing a…

astro-ph.HE2025

A mysterious feature in the NICER spectrum of 4U 1820-30: A gravitationally redshifted absorption line?

R. Iaria, T. Di Salvo, A. Anitra +6

A mysterious absorption feature at approximately 3.8 keV has been identified in the NICER spectrum of the low-mass X-ray binary system 4U 1820-30. We interpret this feature as a gr…