activity
20102026
most citedThe Early Data Release of the Dark Energy Spectroscopic Instrument

343 citations · 3.7k across the 123 of their papers we have counts for

collaborators
Showing astro-ph.HEShow all

11 papers · 1 filter

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.HE2025

Uncovering the population of compact binary mergers and their formation pathways with gravitational waves through the Einstein Telescope

M. Arca-Sedda, I. Dvorkin, G. Franciolini +19

Ground-based gravitational-wave (GW) observatories have transformed our view of compact-object mergers, yet their reach still limits a comprehensive reconstruction of the processes…

astro-ph.HE2025

Euclid Quick Data Release (Q1). The active galaxies of Euclid

Euclid Collaboration, T. Matamoro Zatarain, S. Fotopoulou +355

We present a catalogue of candidate active galactic nuclei (AGN) in the Quick Release (Q1) fields. For each source we collect multi-wavelength photometry and spec…

astro-ph.HE2024

Chandra Discovery of a Candidate Hyper-Luminous X-ray Source in MCG+11-11-032

Adi Foord, Francesca Civano, Julia M. Comerford +9

We present a multi-wavelength analysis of MCG+11-11-032, a nearby AGN with the unique classification of both a binary and a dual AGN candidate. With new Chandra observations we aim…

astro-ph.HE2016★ 35 cited

A variable ULX and possible IMBH candidate in M51a

Hannah M. Earnshaw, Timothy P. Roberts, Lucy M. Heil +7

ULX-7, in the northern spiral arm of M51, demonstrates unusual behaviour for an ultraluminous X-ray source, with a hard X-ray spectrum but very high short-term variability. This su…

astro-ph.HE2015★ 13 cited

ULX behaviour: the ultraluminous state, winds & interesting anomalies

T. P. Roberts, M. J. Middleton, A. D. Sutton +3

Recent evidence - in particular the hard X-ray spectra obtained by NuSTAR, and the large amplitude hard X-ray variability observed when ultraluminous X-ray sources (ULXs) show soft…