Stellar-MADE Project

Exploring the effects of Stellar Multiplicity on planet formation Across Disc Evolution.
ERC Starging Grant: October 2022 - September 2027.
Hosted at IPAG & UGA (Grenoble, France).

Members of the team:

• Nicolás Cuello (Principal Investigator, IPAG/UGA)
• Antoine Alaguero (PhD Student, IPAG/CNRS)
• Pedro Poblete (Postdoc, IPAG/CNRS)
• Mario Sucerquia (Postdoc, from June 2024, IPAG/UGA)
• Romain Grane (M2 student, from April 2024, IPAG/UGA)
• Elisa Castro (PhD Student, from October 2024, IPAG/UGA)

Project goals:

• Establish the formation channels of protoplanetary discs around young stellar objects;
• Follow disc dynamics and grain growth to identify the regions of planetesimal formation;
• Characterise planetary architectures and the resulting exoplanet population.

Abstract of the project

Stellar-MADE co(s)mic strips

A series of comic strips about different aspects of the science carried out within the Stellar-MADE project. This material was done by Nicolás Cuello & Antoine Alaguero in collaboration with the Ink Link and Séverine Alvain (during 2023 and released in 2024). Please get in touch with us if you would like to use it for outreach activities.

• Episode 1: daily life of an astrophysicist, models & astronomical observations.
• Episode 2: disc dynamics and planet formation in multiple stellar systems.
• Episode 3: distances & detection of exoplanets in multiple stellar systems.
• Episode 4: alien life, planetary orbits & chaos in multiple stellar systems.

Disc Dynamics & Planet Formation Journal Club

Every Tuesday at 14h00 (CET) we meet online through Zoom to discuss recent interesting articles from the arXiv. This activity is co-organised between two ongoing ERC projects: Stellar-MADE (PI: N. Cuello) and Dust2Planets (PI: F. Ménard). We alternate between sessions dedicated to “multiple stellar systems” and sessions dedicated to “dust dynamics and observations”.

The format is the following:

• a long presentation (15-20 min) followed by discussion;
• a short one (5 min): quick overview or new idea / 1-2 slides.

For more information, check the journal club webpage.

Featured publications:

• V892 Tau: A tidally perturbed circumbinary disc in a triple stellar system
  Alaguero, Cuello, Ménard et al. (submitted to A&A)
• Probing initial distributions of orbital eccentricity and disc misalignment via polar discs
  Ceppi, Cuello, Lodato et al. (2024)
• Alpha Centauri: Disc Dynamics, Planet Stability & Detectability
  Cuello & Sucerquia (2024)
• Formation of misaligned second-generation discs through fly-by encounters
  Smallwood, Nealon, Cuello, Dong & Booth (2024)
• Close encounters: How stellar flybys shape planet-forming discs
  Cuello, Ménard & Price (2023)
• Circumbinary planets: migration, trapping in mean-motion resonances, and ejection
  Gianuzzi, Giuppone & Cuello (2023)
• Sustained FU Orionis-type outbursts from colliding discs in stellar flybys
  Borchert, Price, Pinte & Cuello (2022)

Complete list of publications

Relevant data and setup files:

• Modelling of the CBD in V892 Tau
• CBD disc breaking and polar alignment
• Modelling of the CBD in L1551 IRS 5
• Phantom-mcfost simulations of discs in multiples
• Alpha Centauri modelling
• Circumbinary planet dynamics in triples
• Modelling growing dust in multiples

Featured seminars and talks in conferences:

• UPCOMING: Invited review talk at EAS2024 (Padova, Italy) by Nicolás Cuello (July 2024).
• UPCOMING: Contributed talk at Dust Devils Workshop (Tucson, USA) by Pedro Poblete (March 2024).
• Contributed talk at Exosystèmes IV (Lyon, France) by Antoine Alaguero (February 2024).
• Invited seminar at Osservatorio Astrofisico di Torino (OAT, Italy) by Nicolás Cuello (January 2024).
• Contributed talk at EAS 2023 in Symposium S13 (Krakow, Poland) by Antoine Alaguero (July 2023).
• Invited review talk at The Alpha Centauri System (Nice, France) by Nicolás Cuello (June 2023).
• Invited review talk at 4th Phantom Users Workshop (Melbourne, Australia) by Nicolás Cuello (February 2023). Talk available here.
• Invited seminar for the JEDI Star Talks (online) by Nicolás Cuello (February 2023). Talk available here.
• Contributed talk at Formation Planétaire et des Exoplanètes avec l’ELT (Fréjus, France) by Antoine Alaguero (November 2022).

Complete list of talks

Outreach activities

• Participation to a radio emission about comics and astrophysics by Antoine Alaguero.
• Les cordées de la réussite: Outreach activity in a local high-school in Grenoble by Nicolás Cuello.
• Pint of Science in Grenoble, 23/05/2023.
  “Discs and planets in multiple stellar systems”. Program and details here.
  Presentations by Nicolás Cuello and Antoine Alaguero.
• Online interview about stellar multiplicity and planet formation on Twich with GalactiCamille, 22/04/2023.
• Online presentation for elementary school students, Italy, December 2022 and 2023.
  “I misteri della fomazione planetaria: Pianeti e stelle binarie”
  Gallery of selected drawings by the students.
• Presentation for high-school French students at IPAG, 14/12/2022;
  “Simulations numériques & formation planétaire”.

Organised meetings & workshops

• Special Session 19 on “Stars, discs & planets: dynamics & evolution in multiple systems” at EAS2024 (Padova, Italy) (3 July 2024).
• Stellar-MADE Winter Meeting 2024 at Villard-de-Lans (16-19 January 2024).
• Phantom-MCFOST workshop at IPAG (12-16 June 2023).
• Stellar-MADE Kick-off meeting at Villard-de-Lans (17-20 January 2023).

Main collaborators of Stellar-MADE

• François Ménard (Grenoble, France)
• Daniel Price (Monash, Australia)
• Cathie Clarke (Cambridge, UK)
• Giuseppe Lodato (Milano, Italy)
• Christophe Pinte (Monash, Australia)
• Álvaro Ribas (Cambrdige, UK)
• Mario Sucerquia (Viña del Mar, Chile)
• Matías Montesinos (Santiago, Chile)
• Rebecca Nealon (Warwick, UK)
• Cristian Giuppone (Córdoba, Argentina)

Extended list of collaborators

Supervision of students/interns within the team

• UPCOMING: Elisa Castro (Grenoble, France): 2024-2027, PhD student, by NC and Mario Sucerquia.
• Romain Grane (Grenoble, France): 2024-2027, M2 & PhD student, by NC and Mario Sucerquia.
• Joshua Talidec (Grenoble, France): 2024, high-school student, by NC and Pedro Poblete.
• Félix Sauvourel (Grenoble, France): 2023, M1 student, by NC and Antoine Alaguero.
• Yuna Ageron–Dubreil (Grenoble, France): 2023, high-school student, by NC and Antoine Alaguero.
• Antoine Alaguero (Grenoble, France): 2022-2025, PhD student, by NC and François Ménard.
• Emmanuel Gianuzzi (Córdoba, Argentina): 2021-2024, PhD student, by NC and Cristian Giuppone.
• Simone Ceppi (Milano, Italy): 2020-2024, PhD student, by NC and Giuseppe Lodato.

Acknowledgements

Project hosted at at IPAG & UGA (Grenoble, France), with the participation of CNRS. Funded by the European Union (ERC, Stellar-MADE, No. 101042275). Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Research Council Executive Agency. Neither the European Union nor the granting authority can be held responsible for them.