OzFink 2025: Seconds to Discovery - Rubin's Alert Era Begins

Nov 10, 2025, 8:05 AM → Nov 12, 2025, 5:00 PM Europe/Paris

BA403 (Swinburne University)

Anais Möller (Swinburne University), Emille Ishida (CNRS/LPC-Clermont), Julien Peloton (CNRS-IJCLab)

2025 OzFink workshop: Seconds to Discovery - Rubin's Alert Era Begins

This workshop is timed in the dawn of a transformative moment in astrophysics: the first alerts from the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST). Rubin will soon begin the most ambitious optical survey ever undertaken, expected to detect up to 10 million time-domain events per night over the next decade.

 

The workshop will strengthen connections across different fields of time-domain astronomy in Australia and provide hands-on experience with Fink, a public alert broker that will distribute and process Rubin data in real-time. Participants will explore the publicly available Rubin LSST through Fink (simulations, precursors, and real data, if available) and build practical expertise for the next decade of scientific discoveries.

 

Program:
The meeting will happen in Swinburne University between November 10 and 12, 2025 and it is supported by the ARC CoE OzGrav and CNRS/IN2P3.

The program will include contributed talks on early science, tutorials on accessing and filtering Rubin alerts, and collaborative sessions to develop custom detection algorithms for variable and transient phenomena. Topics include:

• Maximising science with alerts.
• Accessing and analyzing Rubin public time-domain data via Fink
• Using Fink's filtering and ranking tools for targeted science goals
• Integrating Rubin data with multi-messenger and multi-wavelength observations and facilities.
• Developing custom filters to identify promising follow-up candidates

 

Registrations are open until October 15, 2025. Thanks to the support of OzGrav, registration is free. 

Note that remote participation is not envisaged. However all materials will be available online.

 

SOC:

• Anais Möller  (Swinburne, chair, Australia)
• Emille Ishida (LPC/CNRS, France)
• Julien Peloton (IJCLab/CNRS, France)
• Dougal Dobie (USydney, Australia)
• Liana Rauf (ANU, Australia)
• Ryan Ridden (Canterbury, NZ)

 

LOC:

• Lukas Steinwender (Swinburne, Australia)
• Olivia Vidal-Velazquez (Swinburne, Australia)
• Tallulah Waterson (Swinburne, Australia)

 

Mon, November 10

9:30 AM → 10:15 AM Registration

Welcome

10:15 AM → 11:40 AM Talk: Introduction Rubin LSST and Fink in a nutshell

Convener: Dr Emille Ishida (CNRS/LPC-Clermont)

Warp-up

10:15 AM Introduction Rubin LSST and Fink in a nutshell

Speaker: Dr Anais Möller (Swinburne University)

Introduction Rubin LSST and Fink in a nutshell

11:40 AM → 12:20 PM Tutorial: Introduction to Fink broker

Convener: Dr Emille Ishida (CNRS/LPC-Clermont)

https://docs.google.com/presentation/d/1RYNLOASME6FKDmzDb2SmJwdN8FmQ0477biqFcMLp9eg/edit?usp=sharing

11:40 AM Introduction to Fink broker

Speaker: Dr Julien Peloton (CNRS-IJCLab)

Introduction to Fink broker

12:20 PM → 1:20 PM Break: Lunch break

1:20 PM → 2:20 PM Talk: Rubin and multi-wavelength

Convener: Dr Emille Ishida (CNRS/LPC-Clermont)

Warp-up

1:20 PM Extragalactic transients discovered in Rubin DP1

Speaker: James Freeburn

Extragalactic transients in Rubin DP1 OzFink.pptx

1:40 PM Radio and Fink synergies

Speaker: Dougal Dobie

dobie_vast_fink.pdf

2:00 PM Siding Spring Observatory Alert System

Speaker: Jamie Soon

ozfink_sssoalertsystem.pdf

2:20 PM → 3:00 PM Tutorial: Rubin LSST

Convener: Dr Emille Ishida (CNRS/LPC-Clermont)

https://docs.google.com/presentation/d/1RYNLOASME6FKDmzDb2SmJwdN8FmQ0477biqFcMLp9eg/edit?usp=sharing

2:20 PM Rubin LSST

Speaker: Dr Anais Möller (Swinburne University)

Rubin LSST

3:00 PM → 3:40 PM Break: Afternoon break

3:40 PM → 4:20 PM Talk: Kilonovae

Convener: Dr Emille Ishida (CNRS/LPC-Clermont)

Warp-up

3:40 PM Finding kilonovae in LSST; Lessons learnt from blind optical KN searches

Speaker: Natasha Van Bemmel

OzFink_2025_nvanbemmel.pptx

4:00 PM Strategy for identifying Vera C. Rubin Observatory kilonova candidates for targeted gravitational-wave searches

Speaker: Simon Stevenson

STEVENSON_OzFINK.pdf

4:20 PM → 5:20 PM Discussion: Follow-up strategies

Convener: Dr Anais Möller (Swinburne University)

6:00 PM → 8:00 PM Reception: Reception at Hawthorn Hotel

Tue, November 11

9:15 AM → 10:20 AM Talk: Nuclear transients

Convener: Dr Julien Peloton (CNRS-IJCLab)

Warp-up

9:15 AM Optical and gamma-ray duty cycle of extreme blazars

Speaker: Julian Hamo (IJCLab)

2025.11.11_Fink_Australia_Hamo.pdf

9:35 AM Changing Look behaviour in 6dFGS AGN

Speaker: Sruthi Suresh

OzFink.pptx

9:55 AM Are most detected tidal disruption events partial?

Speaker: Megha Sharma

Are most detected tidal disruption events partial?

10:20 AM → 11:00 AM Break: Morning break

11:00 AM → 11:40 AM Talk: Fast transients

Convener: Dr Emille Ishida (CNRS/LPC-Clermont)

Warp-up

11:00 AM The Need for Speed: Finding Fast Transients with TESS

Speaker: Clarinda Montilla

mastersslides.pptx

11:20 AM Bridging the High-Cadence Gap: The TESSELLATE Sky Survey as a Complement to LSST

Speaker: Hugh Roxburgh

Bridging the High-Cadence Gap

11:40 AM → 12:20 PM Tutorial: Fink Rest API and Science Portal

Convener: Dr Emille Ishida (CNRS/LPC-Clermont)

https://docs.google.com/presentation/d/1RYNLOASME6FKDmzDb2SmJwdN8FmQ0477biqFcMLp9eg/edit?usp=sharing

11:40 AM Portal and API

Speaker: Dr Julien Peloton (CNRS-IJCLab)

Portal and API

12:20 PM → 1:20 PM Break: Lunch

1:20 PM → 2:20 PM Talk: Supernovae

Convener: Dr Julien Peloton (CNRS-IJCLab)

Warp-up

1:20 PM Early Inference of Supernova Light Curve Parameters with Physics-Informed Neural Networks

Speaker: Gabriel Teixeira

OzFink - PILCA.pdf

1:40 PM Photometric core-collapse supernova classification

Speaker: Lukas Steinwender

Photometric core-collapse supernova classification

2:00 PM Active Learning

Speaker: Dr Emille Ishida (CNRS/LPC-Clermont)

AL learning

2:20 PM → 3:00 PM Discussion: What added values are useful? Catalogues, features, etc

Convener: Dr Emille Ishida (CNRS/LPC-Clermont)

2:20 PM What added values are useful? Catalogues, features, etc

Speaker: Dr Julien Peloton (CNRS-IJCLab)

3:00 PM → 3:40 PM Break: Afternoon

3:40 PM → 4:20 PM Discussion: Roundtable

Convener: Dr Liana Rauf

3:40 PM Round Table

Round Table topics

4:20 PM → 5:00 PM Tutorial: Fink Xmatch and Data Transfer

Convener: Dr Julien Peloton (CNRS-IJCLab)

https://docs.google.com/presentation/d/1RYNLOASME6FKDmzDb2SmJwdN8FmQ0477biqFcMLp9eg/edit?usp=sharing

Wed, November 12

9:15 AM → 10:20 AM Talk: Galactic and satellites

Convener: Dr Julien Peloton (CNRS-IJCLab)

Warp-up

9:15 AM Microlensing events with Rubin

Speaker: Jeremy Mould

jmould-PBH.pptx

9:35 AM Detecting Resident Space Objects in fast-cadenced, wide-field, optical transient astronomical surveys

Speaker: Tallulah Waterson

Detecting RSOs in fast-cadenced wide-field optical transient astronomical surveys.pptx

9:55 AM Enhancing Gamma-Ray Burst Localisation with Distributed Aperture CubeSat Constellations

Speaker: Haritha Mullathody

Ozfink.pptx

10:20 AM → 11:00 AM Break: Morning

11:00 AM → 11:40 AM Talk: 4MOST and galaxies

Convener: Dr Emille Ishida (CNRS/LPC-Clermont)

Warp-up

11:00 AM The 4MOST Hemisphere Survey: facilitating low-z science across the southern hemisphere

Speaker: Edward Taylor

20251112-FinkWorkshop-4HSandDVD.pdf

11:20 AM A new method to obtain host-galaxy properties for LSST Type Ia SNe

Speaker: Olivia Vidal Velázquez

OzFink workshop 2.pdf

11:40 AM → 12:10 PM Tutorial: Creating your own Fink filter

Convener: Dr Julien Peloton (CNRS-IJCLab)

https://docs.google.com/presentation/d/1RYNLOASME6FKDmzDb2SmJwdN8FmQ0477biqFcMLp9eg/edit?usp=sharing

12:10 PM → 12:20 PM Talk: Closing remarks

Convener: Dr Anais Möller (Swinburne University)

Warp-up

12:20 PM → 1:20 PM Break: Lunch

1:20 PM → 3:00 PM Tutorial: Office hours

Conveners: Dr Anais Möller (Swinburne University), Emille Ishida, Dr Julien Peloton (CNRS-IJCLab)

https://docs.google.com/presentation/d/1RYNLOASME6FKDmzDb2SmJwdN8FmQ0477biqFcMLp9eg/edit?usp=sharing