activity
20102026
most citedThe discovery of weak coherent pulsations in the ultraluminous X-ray source NGC 1313 X-2

164 citations · 1.4k across the 33 of their papers we have counts for

collaborators
Showing astro-ph.HEShow all

32 papers · 1 filter

astro-ph.HE2026

A0538-66: A transient ultraluminous X-ray source with a relativistic outflow, 69ms pulsations, and anomalous optical activity

Lorenzo Ducci, Sandro Mereghetti, Ciro Pinto +8

A0538-66 is a peculiar Be/X-ray binary in the Large Magellanic Cloud, hosting the fastest spinning neutron star of its class (~69ms) and showing the brightest optical bursts of any…

astro-ph.HE2026

A relativistic inflow candidate in a quasar at cosmic noon

Yerong Xu, Xiurui Zhao, Elena Bertola +14

Cosmic noon () marks the peak epoch of cosmic star formation and black hole accretion activity, where strong accretion and outflows are expected. We report two candidate ab…

astro-ph.HE2026

XRISM/Resolve observations of Hercules X-1: a pulsating, highly broadened Fe K emission line from the neutron star accretion column

Peter Kosec, Laura Brenneman, Erin Kara +11

The study of X-ray pulsar accretion columns helps us characterize accretion physics in this extreme regime of strong gravity and strong magnetic fields. Previous observations of th…

astro-ph.HE2025

XRISM/Resolve observations of Hercules X-1: vertical structure and kinematics of the disk wind

Peter Kosec, Laura Brenneman, Erin Kara +11

X-ray binary accretion disk winds can carry away a significant fraction of the matter transferred from the companion and hence strongly affect the accretion flow and the long-term…

astro-ph.HE2025

Millihertz Oscillations Near the Innermost Orbit of a Supermassive Black Hole

Megan Masterson, Erin Kara, Christos Panagiotou +22

Recent discoveries from time-domain surveys are defying our expectations for how matter accretes onto supermassive black holes (SMBHs). The increased rate of short-timescale, repet…

astro-ph.HE2025

Line detections in photospheric radius expansion bursts from 4U 1820-303

F. Barra, D. Barret, C. Pinto +3

Context: NICER (Neutron star Interior Composition ExploreR) is the instrument of choice for the spectral analysis of type I X-ray bursts, as it provides high throughput at X-ray CC…