activity
20032026
most citedDiscovery of a 0.42-s pulsar in the ultraluminous X-ray source NGC 7793 P13

338 citations · 716 across the 22 of their papers we have counts for

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Showing astro-ph.HEShow all

15 papers · 1 filter

astro-ph.HE2026

X-ray and optical decline of the intermediate mass black hole HLX-1

Roberto Soria, Maya Garbaccio Gili, Francesco Massaro +2

HLX-1 is a prominent intermediate-mass black hole (IMBH) candidate, historically exhibiting recurrent X-ray outbursts with spectral state transitions analogous to those observed in…

astro-ph.HE2024★ 2 cited

Pulsating ultraluminous X-ray sources: modeling the thermal emission and polarization properties

S. Conforti, L. Zampieri, R. Taverna +4

Ultraluminous X-ray sources (ULXs) are enigmatic sources first discovered in the 1980s in external galaxies. They are characterized by their extraordinarily high X-ray luminosity,…

astro-ph.HE2024★ 1 cited

Skipping a beat: discovery of persistent quasi-periodic oscillations associated with pulsed fraction drop of the spin signal in M51 ULX-7

Matteo Imbrogno, Sara Elisa Motta, Roberta Amato +24

The discovery of pulsations in (at least) six ultraluminous X-ray sources (ULXs) has shown that neutron stars can accrete at (highly) super-Eddington rates, challenging the standar…

astro-ph.HE2022★ 12 cited

A multi-wavelength view of distinct accretion regimes in the pulsating ultraluminous X-ray source NGC 1313 X-2

Rajath Sathyaprakash, Timothy P. Roberts, Fabien Grisè +7

NGC 1313 X-2 is one of the few known pulsating ultraluminous X-ray sources (PULXs), and so is thought to contain a neutron star that accretes at highly super-Eddington rates. Howev…

astro-ph.HE2021★ 6 cited

Modelling multiwavelength emission of Ultra-luminous X-ray Sources accreting above the Eddington limit

Elena Ambrosi, Luca Zampieri, Fabio Pintore +1

We model the multiwavelength properties of binaries accreting at super-critical rates with the aim to better understand the observational properties of Ultra-luminous X-ray Sources…

astro-ph.HE2020★ 8 cited

Constraining Models of the Pulsar Wind Nebula in SNR G0.9+0.1 via Simulation of its Detection Properties using the Cherenkov Telescope Array

M. Fiori, L. Zampieri, A. Burtovoi +2

SNR G0.9+0.1 is a well known source in the direction of the Galactic Center composed by a Supernova Remnant (SNR) and a Pulsar Wind Nebula (PWN) in the core. We investigate the pot…