activity
20142026
most citedAn Ultraluminous X-ray Source Powered by An Accreting Neutron Star

767 citations · 1.5k across the 22 of their papers we have counts for

collaborators

24 papers

astro-ph.HE2026

Flux variability of the "10 keV feature" of 4U 0115+63

Katrin Berger, Ekaterina Sokolova-Lapa, Ralf Ballhausen +14

X-ray spectra of accretion-powered X-ray pulsars can often be described using a power-law continuum with a high-energy cutoff, which might be further modified by additional spectra…

astro-ph.HE2025

Unveiling the origin of the optical and UV emission during the 2017 giant outburst of the Galactic ULX pulsar Swift J0243.6+6124 (Corrigendum)

J. Alfonso-Garzón, J. van den Eijnden, N. P. M. Kuin +8

An error was detected in the code of one of the components considered to model the optical/UV emission of the Galactic ULX pulsar Swift J0243.6+6124 during its 2017 giant outburst.…

astro-ph.HE20241 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.HE20241 cited

Return to the forgotten ULX: a broadband NICER+NuSTAR study of NGC 4190 ULX-1

Hannah P Earnshaw, Matteo Bachetti, Murray Brightman +7

We observed the nearby and relatively understudied ultraluminous X-ray source (ULX) NGC 4190 ULX-1 jointly with NICER and NuSTAR to investigate its broadband spectrum, timing prope…

astro-ph.HE20231 cited

VLA monitoring of LS V +44 17 reveals scatter in the X-ray--radio correlation of Be/X-ray binaries

J. van den Eijnden, A. Rouco Escorial, J. Alfonso-Garzón +8

LS V +44 17 is a persistent Be/X-ray binary (BeXRB) that displayed a bright, double-peaked period of X-ray activity in late 2022/early 2023. We present a radio monitoring campaign…

astro-ph.HE2023

The first mm detection of a neutron star high-mass X-ray binary

J. van den Eijnden, L. Sidoli, M. Diaz Trigo +9

Neutron stars accreting from OB supergiants are often divided between persistently and transiently accreting systems, called Supergiant X-ray Binaries (SgXBs) and Supergiant Fast X…