activity
20232026
collaborators

5 papers

astro-ph.IM2026

Search for Long-Transient Gravitational Waves from Supernova SN2023ixf using GFH-v2 Pipeline

Sandhya Sajith Menon, Lorenzo Pierini, Pia Astone +24

We present a directed search for long-transient gravitational waves from the possible newborn magnetar remnant of SN2023ixf, a nearby Type II core-collapse supernova in the M101 ga…

gr-qc2026

Advanced Virgo during the LIGO-Virgo-KAGRA fourth observing run

Virgo Collaboration, F Acernese, A Agapito +546

From April 10, 2024 to November 18, 2025 Advanced Virgo participated in the fourth observing run of the network of gravitational-wave detectors, together with Advanced LIGO and KAG…

astro-ph.HE2026

Detection of the distant quasar OP 313 with the first Large-Sized Telescope of CTAO

K. Abe, S. Abe, J. Abhir +412

In December 2023, the Large-Sized Telescope prototype (LST-1) detected for the first time VHE -ray emission from the FSRQ OP~313 becoming the furthest blazar ever observed at VH…

astro-ph.IM2025

GFH-v2 Pipeline for Searches of Long-Transient Gravitational Waves from Newborn Magnetars

Sandhya Sajith Menon, Lorenzo Pierini, Pia Astone +11

This paper presents an enhanced methodology for searching long transient gravitational waves associated with a newborn magnetar, with particular focus on the regime in which the ea…

astro-ph.HE2023

UV signatures of magnetar formation and their crucial role for Gravitational Wave detection

Sandhya S. Menon, Dafne Guetta, Simone Dall'Osso

The emission from shock breakouts (SBOs) represents the earliest electromagnetic (EM) signal emitted by cataclysmic events involving the formation or the merger of neutron stars (N…