Présidents de session
Talks:: Contributed talks
- Emille Ishida (CNRS/LPC-Clermont)
Talks:: Contributed talks
- Julien Peloton (CNRS-IJCLab)
Talks:: Contributed talks
- Anais Möller (Swinburne University)
Talks:: Contributed talks
- Anais Möller (Swinburne University)
Talks:: Contributed talks
- Anais Möller (Swinburne University)
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Dr Anais Möller (Swinburne University)08/06/2026 14:30
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Bruno Sanchez (CPPM - CNRS)08/06/2026 14:50
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M. Lukas Steinwender (Swinburne University of Technology)08/06/2026 15:20
With millions of detections per night the Vera C. Rubin Observatory (Rubin) will detect millions of supernovae (SNe) over the next ten years. This dataset presents a great opportunity to characterize core-collapse supernovae (SNCC) at redshifts > 0.2. Especially rates and properties of SNCC at these distances have been challenging to measure statistically until now.
I present a machine...
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Dr Etienne Russeil (Stockholm University)08/06/2026 15:40
Superluminous Supernovae (SLSNe) are rare and extremely bright stellar explosions. Their precise powering mechanism remains an open question, with models suggesting contributions from magnetars, pair-instability explosions, or interaction with dense circumstellar material. Modern wide-field optical surveys, such as the Zwicky Transient Facility (ZTF), have allowed the automatic photometric...
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Dr Bernardo Fraga (CBPF)08/06/2026 16:00
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Julian Hamo (IJCLab)09/06/2026 11:30
Blazars are among the most variable non-thermal sources in the Universe, exhibiting broadband emissionfrom radio to γ-rays. With the new era of large-scale surveys such as the Vera C. Rubin Observatory, their optical variability can now be regularly monitored with unprecedented depth, paving the way to probe their emission mechanisms in a time-domain, multi-wavelength context.
In this work,...
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M. Rupesh Durgesh (COIN)09/06/2026 11:50
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Sergey Karpov (Institute of Physics, Czech Academy of Sciences)09/06/2026 12:20
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Bernardo Fraga (CBPF)09/06/2026 12:40
Microlensing is a type of gravitational lensing phenomenom that occurs in scales of stars and planets. It manifests as an achromatic increase in the brightness of a star due to a stellar companion or even an orbiting planet, being one of the methods to find exoplanets.
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Although existing simulated datasets are an incredible asset for training machine learning models, they lack diversity for... -
Camille DOUZET (IJCLab)09/06/2026 14:30
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Dr Priscila Pessi (National Center for Nuclear Research (NCBJ), Warsaw)09/06/2026 14:50
BHTOM (Black Hole Target Observation Manager) is a web-based platform for coordinating time-domain astronomical observations across a global network of telescopes. It enables users to define targets, collect and process photometric data automatically, and combine new observations with archival datasets. The system standardizes data using PSF photometry and Gaia-based filters. Designed for...
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Fabian Schussler (CEA/Irfu)09/06/2026 15:20
The Astro-COLIBRI platform is a comprehensive ecosystem designed for the real-time evaluation and coordination of transient astrophysical events. It integrates diverse alert streams, including neutrinos, gravitational waves, and high-energy gamma rays, into a unified, user-friendly interface.
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The link between Astro-COLIBRI and Fink is a critical bridge in the multi-messenger pipeline: Fink... -
Damien TURPIN (CEA-Saclay)09/06/2026 15:40
Since 2018, led by the GRANDMA Collaboration, the Kilonova-Catcher (KNC) citizen science program aims to directly involve a worldwide community of citizens in the search for electromagnetic counterparts of gravitational-wave sources. Over the past two years, the scientific scope of KNC has broadened to include “fast” extragalactic transients such as gamma-ray burst afterglows, nearby...
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Konstantinos Odysseas Xenos (Observatoire de la Cote d'Azur)10/06/2026 11:30
Large photometric surveys provide sparse multi-band lightcurves for millions of Solar System objects (SSOs),
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offering an opportunity to jointly constrain their physical and compositional properties. However, current phase func-
tion models do not account for rotational variability, limiting their ability to retrieve accurate parameters. Similarly,
methods that recover shape and rotational... -
Milagros Colazo (Adam Mickiewicz University)10/06/2026 11:50
The LSST is revealing a previously unexplored population of ultra-fast-rotating sub-kilometer asteroids in the main belt. Several recently identified targets, including 2025 MN45, 2025 MK41, 2025 MV71, and 2025 MG56, show rotation periods of just a few minutes despite sizes >0.5 km, challenging current rubble-pile cohesion models. We aim to perform targeted photometric follow-up to verify...
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Dr Preeti Cowan (University of Auckland)10/06/2026 12:20
Predictions suggest that the Vera C. Rubin Observatory’s Legacy Survey of Space and Time (LSST) will discover ~six million Solar System objects (SSOs) in its decade of operations. The onset of activity in an SSO, such as coma or tail formation, signals a change in its physical environment that can also influence its orbit. Rapid identification of such activity is therefore essential both for...
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Roman Le Montagner10/06/2026 12:40
Fink-FAT (Fink Asteroid Tracker) is a Rust-based pipeline for ingesting photometric alerts, linking detections of moving objects across one or more nights, and reconstructing candidate trajectories. Outfit, a standalone Rust package, is used within this workflow to derive preliminary orbital solutions. In this talk, we will first introduce Outfit and Fink-FAT, then present the first results...
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Dr Gabriel Teixeira (CBPF)11/06/2026 11:30
Inverse problems in astronomy are often computationally expensive, and Markov Chain Monte Carlo (MCMC) methods become impractical when dealing with massive, heterogeneous datasets or when only limited observations are available. With the advent of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), the astronomical community is expected to receive millions of transient alerts...
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Lukas Steinwender (Swinburne University of Technology)11/06/2026 11:50
Extracting the full scientific potential of large photometric surveys demands richer data visualization than current methods provide. The Vera C. Rubin Observatory's LSST exemplifies this challenge: its filter-based sampling of the light spectrum is intentionally sparse, yet the subtle details encoded in filter spacing, overlap, and sensitivity profiles carry critical information that standard...
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Dr Sylvie Dagoret (IJCLab)11/06/2026 12:20
We investigate the origin of dipole features observed in some Rubin alert light curves, as identified in the Fink alert broker stream. These dipoles, notably present in cross-matched sources such as Gaia counterparts, are characterized by a dipole angle and an angular separation provided at the alert level.
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Our analysis reveals a strong angular dependence of these features, suggestive of a... -
Emmanuel Gangler (LPC)11/06/2026 12:40
The release of Rubin first alerts is a great opportunity to get acquainted with the data. Using anomaly finder as a driver, I'll showcase the first lesson learnt. This will concern both data (what are they, are there important flags linked to data quality ? What to do with forced photometry...) and maybe if lucky first anomalies.
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Obviously, this is work in progress for now, I can't promise... -
Dr Emille Ishida (CNRS/LPC-Clermont)11/06/2026 13:00
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Dr Emille Ishida (CNRS/LPC-Clermont)