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Fabian Schüssler (IRFU / CEA Paris-Saclay)20/10/2025 10:00
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Bruno SANCHEZ (Aix-Marseille Univ. - CPPM - IN2P3 - CNRS)20/10/2025 11:00
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Phil Evans (Leicester University)20/10/2025 11:45
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Gergely Dálya (L2IT, Toulouse)20/10/2025 14:00
In this talk, that I will give on behalf of the LVK Collaboration, I will present the latest results from the O4a observing run, placing a special emphasis on the new events in GWTC-4, the multi-messenger and cosmological results obtained.
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Marcos Santander (University of Alabama)20/10/2025 14:20
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Iris de Ruiter (University of Sydney)20/10/2025 14:40
In this talk, I will discuss the current state of transient studies in the radio domain. With SKA precursor and pathfinder instruments, we are collecting unprecedentedly rich and dense datasets, opening new frontiers in transient astronomy. However, this rapid data influx presents key challenges, particularly in storage and accessibility of light curve data. I will highlight these challenges...
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Antonia Rowlinson20/10/2025 15:00
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Heloise Stevance (University of Oxford)20/10/2025 15:35
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Joseph Lyman (University of Warwick)20/10/2025 15:55
I will present the GOTO project: an array of wife-field survey telescopes principally aimed at following gravitational wave (GW) alerts and performing rapid searches of the localisation areas. The array is situated over two sites, covering Northern and Southern skies, performing an all-sky optical survey, alongside multi-messenger follow up. In addition to GW alerts, GOTO regular reacts to...
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Ruslan Konno20/10/2025 16:15
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Matthew Graham (Caltech)20/10/2025 16:35
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Luis Nuñez (Universidad Industrial de Santander)20/10/2025 16:55
LA-CoNGA physics (Erasmus+ 2019-23) validated a Bologna-aligned, one-year master's curriculum that merges data science, scientific instrumentation and high-energy physics to modernise graduate education across the Andean region. Eight universities pooled more than 200 open Spanish-language resources and eight remotely operable HEP laboratories via RedCLARA, enabling three cohorts to keep...
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Angela Zegarelli (Ruhr Universität Bochum (RUB), Germany)21/10/2025 09:00
This contribution presents preliminary results from IceCat-2, the second public catalog of IceCat Alert Tracks, which plans to build and improve upon the first release, IceCat-1. The initial catalog included all real-time alerts issued since 2016, as well as events observed by IceCube since the start of full-detector data collection in 2011 that would have triggered an alert if the program had...
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Chiara Bellenghi21/10/2025 09:15
IceCube has continuously performed all-sky searches for point-like neutrino sources using track-like events. This talk presents a new public data release of astrophysical and atmospheric muon neutrino candidates recorded between April 6, 2008, and May 23, 2022. The dataset includes both through-going and starting muon-induced events reprocessed according to the latest detector calibration...
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Marina Manganaro (University of Rijeka, Faculty of Physics)21/10/2025 09:30
After years studying broadband spectral distributions and trying to constrain theoretical models, a physicist can fall into a valley of scientific frustration. The recent multi messenger events brought a lot of excitement and new energies to face the old and new challenges of this often very abstract field of research. What can we learn from the past multiwalenght efforts and tools and what...
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Didier Verkindt (LAPP-CNRS)21/10/2025 09:45
Since Virgo joined the O4 run in April 2024, the h(t) strain signal that may contain any gravitational wave signal has been reconstructed with a 2% accuracy in the 20-2000 Hz frequency band thanks to a good estimation of the interferometer optical response and the construction of accurate models of the mirrors actuators. I will present this h(t) reconstruction and how its current improvements,...
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Pawan Tiwari (Gran Sasso Science Institute)21/10/2025 10:45
Observations of the early X-ray afterglow phases of Gamma-Ray Bursts (GRBs) using the Swift X-ray Telescope (XRT), which operates in the 0.3 to 10 keV energy range, have revealed distinct temporal features beyond those predicted by the standard forward shock afterglow model. Components in the XRT light curve, such as steep decay, flares, and plateaus, suggest more complex afterglow physics....
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Annarita Ierardi (Gran Sasso Science Institute)21/10/2025 11:00
Accurate modeling of the early X-ray emission in short GRBs is essential for probing the GRB engine, understanding jet physics, and improving electromagnetic follow-up of gravitational wave signals from binary neutron star mergers in the context of multi-messenger astronomy. Thanks to the operation of the Swift satellite over the last 20 years, we now have access to an extensive archive of GRB...
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Matteo Pracchia (Université de Liège)21/10/2025 11:15
We performed a study of the short gamma-ray burst (sGRB) population using a hierarchical Bayesian framework to constrain the (hyper-)parameters of the population model. We considered both an empirical luminosity function model and a more complex quasi-universal structured jet model of the luminosity distribution of the events across the population. Under the assumption of a compact binary...
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Amit Kumar (Aryabhatta Research Institute of Observational Sciences (ARIES))21/10/2025 11:30
The brightest Gamma-ray burst (GRB) ever, GRB 221009A, displays ultra-long GRB (ULGRB) characteristics, with a prompt emission duration exceeding 1000 s. To constrain the origin and central engine of this unique burst, we analyse its prompt and afterglow characteristics and compare them to the established set of similar GRBs. To achieve this, we statistically examine a nearly complete sample...
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Ken Smith (University of Oxford)21/10/2025 14:00
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Lindy Lindstrom (Las Cumbres Observatory)21/10/2025 14:20
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Lukasz Wyrzykowski (University of Warsaw)21/10/2025 14:40
I will present BHTOM.space tool for an automated time-domain target coordination. The main feature of BHTOM is that it can automatically send telescope observing requests, accept telescope images, process them and produce science-ready standardised measurements. Everything so you can focus on what is essential.
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Narek Sahakyan (ICRANet Armenia IO)21/10/2025 15:00
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Monica Seglar Arroyo (IFAE)21/10/2025 15:20
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Weizmann Kiendrébéogo (IRFU / CEA Paris-Saclay)21/10/2025 15:40
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Thierry Midavaine (SAF)21/10/2025 16:20
Thanks to the support of Paris Observotory, RAPAS build a french amateur network equiped withe Gaia like filters and with prototypes of spetrograph to deliver photometric monitoring and SED on alerts. We intend to develop on an international scale this network. Therefore we have to implement a pipeline to provide data to the scientific community.
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Dominik Elsässer (Universität Dortmund)21/10/2025 16:40
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Enrique Díez (Universidad de Oviedo)21/10/2025 17:00
Since 2009, the Spanish Astronomy Society (SEA) has maintained a dedicated working group to foster this relationship: the ProAm Commission. This Commission assessed the state of ProAm collaboration in Spain in 2021 and then again in 2023. Data for the reports were gathered from recent amateur astronomy conferences, a thorough review of scientific publications involving amateur astronomers, and...
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Muskan Yadav (University of Rome Tor Vergata)
The nature of the remnant formed by the coalescence of two neutron stars (NS), is highly sensitive to both the initial mass and the equation of state of the progenitors. Traditionally, accreting black holes formed in the aftermath of NS mergers have been the prevailing central engine model to power short duration gamma-ray bursts (GRBs). However, this framework fails to explain the...
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Ulisses Barres de Almeida (CBPF, Rio de Janeiro)
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Claire Guépin-Detrigne (CNRS, LUPM)
Space missions offer unique opportunities for studying ultra-high-energy (UHE) cosmic rays and neutrinos by leveraging secondary emissions generated by extensive air showers (EAS) resulting from their interactions with the atmosphere or Earth’s crust. Detecting very-high-energy to ultra-high-energy (VHE-UHE) neutrinos associated with transient sources holds great potential for unraveling the...
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Kyle Hart
With the increasing number of high-energy detectors and transient surveys our community is increasingly bottle necked with our ability to perform adequate optical and spectral follow-up observations at scale. In this talk I will discuss the robotization of Manua Kea's oldest telescope, UH88. The system we are building may serve as the foundation for further automation in small/medium aperture...
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Aman Katira (Indian Institutes of Technology, Kanpur)
GW170817 is the first binary neutron star merger detected with gravitational and electromagnetic waves, and its afterglow is still detectable 7 yr post-merger. Some previous studies of the X-ray afterglow have claimed the onset of a new afterglow component or raised concerns about the data processing techniques. Motivated thus, we present here a reanalysis of X-ray afterglow data for GW170817...
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