Programme

Full programme published on 16 August 2025, subject to minor changes. PDF with abstracts. All times are Canary Islands times = UK time.

Zoom link for the conference:  https://rediris.zoom.us/j/4548924539 (password protected to request to Magna or conference organisers)

Please upload your the PDF version of your talk at  https://cloud.iac.es/index.php/s/KfbQmaz37rZXDxs

Poll "Year of image Earth-like planet":  https://docs.google.com/spreadsheets/d/1oKz642eHAtY11qrEMFgm7K69OOIa92Jsdl23vKMQykc/edit?usp=sharing

Review talks (R) are 25 min + 5min questions, contributed talks (C) are 15min + 5min questions

Monday 1 September 2025

11h00-11h30: Welcome coffee 

11h30-12h00: Welcome to the conference (Chair Victor J. S. Béjar)

  1. Excmo. Sr. D. Adasat Reyes Herrera: Vicepresidente 1º y Consejero de Régimen Interior y Patrimonio Insular del Excmo. Cabildo Insular de La Gomera
  2. Rafael Rebolo: Discoverer of the first brown dwarf and former IAC director
  3. Nicolas Lodieu: Chair of the conference

12h00-13h30: session 1: Discoveries and census of the very-low mass and substellar populations at different metallicities and ages (Chair V. J. S. Bejar)

  1. Rafael Rebolo (R): Discovery of Brown Dwarfs  
  2. Catarina Alves de Oliveira (R): Census of brown dwarfs in open clusters and young associations
  3. Nicolas Lodieu (R): Discoveries in large-scale surveys

13h30-15h00: Light lunch

15h00-17h00: session 2: Spectral classification and characterisation of the (metal-poor) very-low mass and substellar population  (Chair Maria Rosa Zapatero Osorio)

  1. ZengHua Zhang (R): Spectral Classification of Brown Dwarfs Across the Full Metallicity Range
  2. Koraljka Muzic (R): Young Brown Dwarfs in the JWST era
  3. Catarina Alves de Oliveira (C):  A New Spectral Class of Brown Dwarfs at the Bottom of the Initial Mass Function in IC 348
  4. Nicolas Lodieu (C):  Defining Physical Parameter Scales for Metal-Poor M Dwarfs Using X-Shooter Spectroscopy
  5. Jun-Yan Zhang (C):  Detection of methane and metallicity constraints on the nearest extreme T subdwarf

 

Tuesday 2 September 2025

09h00-11h00: session 3: Evolutionary models and formation processes of low-mass stars and Brown Dwarfs (Chair Paulo Miles Páez)

  1. Mark Phillips (R): Latest advances in modeling halo brown dwarfs
  2. Trent Dupuy (R): Dynamical Masses & Fundamental Tests of Substellar Physics  
  3. Adnan Ali Ahmad (C): Brown Dwarf Formation Through Gravitational Collapse: Insights From 3D MHD Simulations
  4. Nafise Sedighi (C): Unveiling Ultracool Dwarfs with Euclid and ATMO
  5. María Benito Castaño (C): Brown dwarfs as probes of the particle nature of dark matter: a provocative exploration

11h00-11h30: Coffee Break

11h30-13h30: session 4: The IMF (Chair: Marusa Zerjal)

  1. María Rosa Zapatero Osorio (R): The substellar IMF 
  2. Bartek Gauza (R): Wide substellar companions to stars
  3. Víctor Almendros-Abad (C): The substellar population of the most massive young clusters with JWST
  4. Styliani Tsilia (C): Probing the ultracool dwarf population around the Horsehead nebula
  5. Tamara Rom (C): The low-mass stellar and substellar IMF of the young galactic star cluster Trumpler

13h30-15h00: Light lunch

15h00-17h00: session 5: Characterisation of Brown Dwarfs (Chair David Montes) 

  1. Paulo Miles Páez (R): Rotation and variability of Brown dwarfs
  2. Jared Bull (C): Investigating the Cloudy (or not) Atmosphere of the Planetary-Mass Ross 458c
  3. Kieran Manjrawala (C):  Anatomies of Brown Dwarf Atmospheres: a compilation of the Brown Dwarf Light Curves across L, T and Y spectral types
  4. Natalia Oliveros Gomez (C): Heterogeneous clouds and thermochemical instabilities as the source of WISE1049AB's spectroscopic variability  
  5. Alejandro Santamaría Miranda (C):  Hints of Disk Substructure in the First Brown Dwarf with a Dynamical Mass Constraint

19h00-20h00: Public talk at the Cabildo headquarters in San Sebastian de La Gomera by Dr Nicolas Lodieu and Prof Rafael Rebolo: Brown Dwarfs and Exoplanets (in Spanish)


Wednesday 3 September 2025

09h00-12h00: session 6: Session dedicated to our colleague Prof Yakiv Pavlenko (Chair Antonio Perez Garrido)

  1. 9h00-9h30: Hugh Jones (R): Yakiv Pavlenko - a life dedicated to spectroscopy
  2. 9h30-10h30: IAC collaboration ( Rafael Rebolo , Maria Rosa Zapatero Osorio , Nicolas Lodieu , Bartosz Gauza , ZengHua Zhang , Victor J. S. Béjar , J. Y. Zhang )
  3. 10h30-11h30: MAO talks (Yaroslav Yatskiv, Iryna Vavilova, Peter Berczik, Yuriy Lyubchyk, Dariya Dobrycheva)

12h00-18h30: Lunch and afternoon excursion

  1. 12h15: Meeting point to leave with bus to restaurant
  2. 13h15: Lunch at restaurant Laguna Grande : Menu (Important: remember what you have asked during the registration: meat or fish: no change possible at this stage)
  3. 15h00: Excursion at Garajonay national park with guide in English: Igualero, Los Roques, Degollada 


Thursday 4 September 2025

09h00-11h00: session 7: Review of the latest studies of halo BDs from the ground and space (Chair Nafise Sedighi)

  1. Eduardo Martín (R): Brown dwarfs with the Euclid space mission
  2. Matthew De Furio (R): Brown Dwarfs in the era of the Nancy Grace Roman Space Telescope
  3. Carlos Domínguez-Tagle (C): Spectroscopic search, classification and analysis of ultracool dwarfs in Euclid Q1 data
  4. Sara Muñoz Torres (C): Characterizing the First Field Brown Dwarf Binary Discovered with Euclid
  5. Anjana Mohandasan (C): Ultra-cool dwarfs in the era of Euclid

11h00-11h30: coffee break

11h30-13h40: session 8: Radio and magnetic activity in Brown Dwarfs (Chair Trent Dupuy)

  1. Marusa Zerjal (C): Photometric Ultracool dwarf catalogue in Euclid's Q1 data release
  2. Bartek Gauza (C): Ultracool companions to Gaia high proper motion stars within 100 pc
  3. Antonio Pérez Garrido (C): Proper Motion as a Tool for Identifying Ultracool Objects in Deep Sky Surveys
  4. José Carlos Guirado (R):  Probing radio emission mechanisms in substellar magnetospheres
  5. Diego Martín Carrero (C): Probing magnetic activity and atmospheric dynamics in the L3.5 dwarf LSPM J0036+1821 
  6. Robert Kavanagh (C): Discovering and characterising brown dwarfs via their magnetic fields

13h40-15h00: Light lunch

15h00-17h30: session 9: Connection to exoplanets (Chair Koraljka Muzic)

  1. Víctor J. S. Béjar (R): High-resolution and high-contrast studies of substellar companions
  2. Roberto Varas (C): Present and future of high-resolution spectroscopy of exoplanets around ultracool dwarfs
  3. Víctor J. S. Béjar (C):  Complex Periodic Variables: an approach for planetary formation at the substellar frontier
  4. María Rosa Zapatero Osorio (C): A deep study of a planetary system with an ultra-hot jovian planet
  5. Alejandro Mascareño (C): DUNE: A new infrared exoplanet hunter
  6. Stanimiar Metchev (C): Exoplanet search and characterization with the proposed POET Canadian space mission
20h00-23h00: Conference dinner at Los Laures terrace: Menu (Important: remember what you have asked during the registration: meat or fish: no change possible at this stage)


Friday 5 September 2025

10h00-10h30: session 10: Conference summary (Chair Víctor J. S. Béjar)

10h30-12h30: round table (Rafael Rebolo, Trent Dupuy, Matthew De Furio, Marusa Zerjal, Mark Phillips)

  1. Future directions of substellar science for the next 30 years
  2. Proposals space mission
  3. Potential European funding applications

13h00-14h00: Light lunch and end of the conference