activity
20242026
most citedA systematic study of the ultra-fast outflow responses to luminosity variations in active galactic nuclei

11 citations · 20 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.HE2026

Energy-resolved pulse profiles of Vela X-1: cross-calibrating XMM-Newton and NuSTAR to trace spectral features

Dimitrios K. Maniadakis, Antonino D'Aì, Camille M. Diez +12

Pulse profiles probe the emission geometry of accreting X-ray pulsars, but their observed shapes may depend on instrumental response and observational setup. The pulsed fraction sp…

astro-ph.HE2026

The elusive cyclotron line in 4U 1901+03: hidden, yet present

Elena Ambrosi, Antonino D' Aì, Giancarlo Cusumano +8

Context. Cyclotron resonant scattering features (CRSFs) in accreting X-ray pulsars are often difficult to detect, especially when shallow or variable. Recent studies have shown tha…

astro-ph.HE2025

How the spin-phase variability of cyclotron lines shapes the pulsed fraction spectra: insights from 4U 1538-52

Dimitrios K. Maniadakis, Ekaterina Sokolova-Lapa, Antonino D'Aì +15

We study the energy-dependent pulse profile of 4U 1538-52 and its phase-dependent spectral variability, with emphasis on the behavior around the cyclotron resonant scattering featu…

astro-ph.HE2025★ 6 cited

Energy-resolved pulse profile changes in V 0332+53: Indications of wings in the cyclotron absorption line profile

Antonino D'Aì, Dimitrios K. Maniadakis, Carlo Ferrigno +15

We aim to investigate the energy-resolved pulse profile changes of the accreting X-ray pulsar V 0332+53, focusing in the cyclotron line energy range, using the full set of availabl…

astro-ph.HE2024★ 3 cited

Search for the multiwavelength counterparts to extragalactic unassociated Fermi γ-ray sources

Alberto Ulgiati, Simona Paiano, Fabio Pintore +7

Aims. In this paper, we searched for multi-wavelength (X-ray, optical and radio) counterparts to the unassociated gamma-ray sources (UGS) of the Fermi 4FGL-DR4 catalog. The main go…

astro-ph.HE2024★ 11 cited

A systematic study of the ultra-fast outflow responses to luminosity variations in active galactic nuclei

Yerong Xu, Ciro Pinto, Daniele Rogantini +7

The extreme velocities and high ionization states of ultra-fast outflows (UFOs) make them a promising candidate for AGN feedback on the evolution of the host galaxy. However, their…