Programme

Full programme published on 16 August 2025, subject to minor changes. PDF with abstracts.

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

  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 and Victor Bejar: Co-organisers of the conference

12h00-13h30: session 1: Discoveries and census of the very-low mass and substellar populations at different metallicities and ages

  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

  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

  1. Mark Philipps (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

  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

15h00-17h30: session 5: Characterisation of Brown Dwarfs

  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

18h00: Public talk at the Cabildo headquarters in San Sebastian de La Gomera 


Wednesday 3 September 2025

09h00-12h00: session 6: Session dedicated to our colleague Prof Yakiv Pavlenko

  1. 9h00-9h30: Hugh Jones (R): Yakiv Pavlenko - a life dedicated to spectroscopy
  2. 9h30-10h30: IAC collaboration 
  3. 10h30-11h30: MAO talks

12h00-18h30: Lunch and afternoon excursion

  1. 12h15: meeting point to leave with bus to restaurant
  2. 13h15: lunch at restaurant Laguna Grande 
  3. 15h00: excursion at Garajonay national park with guide in English


Thursday 4 September 2025

09h30-11h00: session 7: Review of the latest studies of halo BDs from the ground and space

  1. Eduardo Martín (R): Brown dwarfs with the Euclid space mission
  2. Matthew Da Furio (R): Brown dwarfs with Nancy 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): Unveiling a brown dwarf binary resolved with Euclid
  5. Anjana Mohandasan (C): Ultra-cool dwarfs in the era of Euclid
  6. Marusa Zerjal (C): Photometric Ultracool dwarf catalogue in Euclid's Q1 data release

11h00-11h30: coffee break

11h30-13h30: session 8: Radio and magnetic activity in Brown Dwarfs

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

13h30-15h00: Light lunch

15h00-17h00: session 9: Connection to exoplanets

  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


Friday 5 September 2025

10h00-10h30: session 10: Conference summary

10h30-12h30: round table

  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