activity
20242026
collaborators

6 papers

astro-ph.HE2026

MAGIC observations of NGC 4278. The first low-luminosity radio galaxy with compact jets detected at TeV energies

S. Abe, J. Abhir, V. A. Acciari +189

The Large High Altitude Air Shower Observatory (LHAASO) Collaboration has recently reported the first detection at TeV energies of a low-luminosity radio galaxy, NGC 4278. The aim…

astro-ph.HE2025

An Ejection Event Captured by VLBI During the Outburst of Swift J1727.81613

Hongmin Cao, Jun Yang, Sándor Frey +9

We observed a newly-discovered Galactic black hole X-ray binary Swift J1727.81613 with the European Very Long Baseline Interferometry Network (EVN) at 5 GHz. The observation was…

astro-ph.HE2025

Investigating the emission mechanism in the spatially-resolved jet of two z 3 radio-loud quasars

Jaya Maithil, Daniel A. Schwartz, Aneta Siemiginowska +9

This study focuses on high-redshift, z > 3, quasars where resolved X-ray jets remain underexplored in comparison to nearby sources. Building upon previous work, we identify and con…

astro-ph.HE2025

Proper Motion and Natal Kick in the Galactic Black Hole X-ray Binary AT2019wey

Lang Cui, Pengfei Jiang, Tao An +9

Understanding the formation mechanisms of stellar-mass black holes in X-ray binaries (BHXBs) remains a fundamental challenge in astrophysics. The natal kick velocities imparted dur…

astro-ph.HE2025

NuSTAR observations of a varying-flux quasar in the Epoch of Reionization

Lea Marcotulli, Thomas Connor, Eduardo Bañados +13

With enough X-ray flux to be detected in a 160s scan by SRG/eROSITA, the quasar CFHQS J142952+544717 is, by far, the most luminous X-ray source known at . We pres…

astro-ph.HE2024

Dinosaur in a Haystack : X-ray View of the Entrails of SN 2023ixf and the Radio Afterglow of Its Interaction with the Medium Spawned by the Progenitor Star (Paper 1)

A. J. Nayana, Raffaella Margutti, Eli Wiston +24

We present the results from our extensive hard-to-soft X-ray (NuSTAR, Swift-XRT, XMM-Newton, Chandra) and meter-to-mm wave radio (GMRT, VLA, NOEMA) monitoring campaign of the very…