Stellar-MADE project

We plan to work on 4 main axes during the meeting:

• Distribution, environment and evolution of discs: multiples vs. singles.
• Disc diagnostics (morphology, kinematics and accretion) within multiples.
• Dust evolution in multiples and flybys: G/D ratio, radial drift, traps, asymmetries.
• Strategy to better characterise discs and orbits with new generation facilities.

All these topics explicitly overlap and will be discussed during the meeting. Each participant will preferentially work on one item with a subgroup of participants. At the end, we will establish a plan to keep working together after the meeting, share results efficiently, and co-write the corresponding scientific articles.

Program with indicative times:

• Tuesday 17/01/2023:
  • During the day: travel to Grenoble and then to Villard de Lans.
  • 16h30: Welcome session in the meeting room at Hôtel des Playes.
  • 20h: Diner (entrée, glass of wine, main course, dessert, coffee/tea).
  • 21h30: Meeting room available for discussion/games & drinks.
• Wednesday 18/01/2023:
  • 8h: Breakfast (buffet and hot drinks).
  • 9h: Review talks & discussion: Gaspard, Andrew, Enrico.
  • 10h30: Coffee break.
  • 11h: Review talks & discussion: Cathie, François.
  • 12h30: Lunch (entrée, glass of wine, main course, dessert, coffee/tea).
  • 14h: Collaborative work.
  • 16h30: Coffee break.
  • 17h30: Short brain-storming session.
  • 20h: Diner (entrée, glass of wine, main course, dessert, coffee/tea).
  • 21h30: Meeting room available for discussion/games & drinks.
• Thursday 19/01/2023:
  • 8h: Breakfast (buffet and hot drinks).
  • 8h30: Collaborative work.
  • 10h: Coffee break.
  • 10h30: Collaborative work.
  • 12h: Lunch (entrée, glass of wine, main course, dessert, coffee/tea).
  • 13h-20h: Free time for outdoor activities: walk in the forest, ski…
  • 17h30: Coffee break.
  • 20h: RACLETTE with a glass of wine and genepi (digestive).
  • 21h30: Meeting room available for discussion/games & drinks.
• Friday 20/01/2023:
  • 8h: Breakfast (buffet and hot drinks).
  • 8h30: Collaborative work.
  • 10h30: Coffee break.
  • 11h: Wrap-up session & strategy for the future.
  • 12h30: Lunch (entrée, glass of wine, main course, dessert, coffee/tea).
  • 14h: Departure from Hôtel des Playes.
  • 15h: Back in Grenoble.

Useful bibliography from EPJ+ Focus Point on Environmental and Multiplicity Effects on Planet Formation (edited by G. Lodato & C. Manara):

• Close encounters: How stellar flybys shape planet-forming discs by Cuello, Ménard & Price (2023).
• Dust dynamics in planet-forming discs in binary systems by Zagaria et al. (2022).
• The external photoevaporation of planet-forming discs by Winter & Haworth (2022).
• The SPHERE view of multiple star formation by Gratton et al. (2022).
• Dynamics of young stellar clusters as planet-forming environments by Reiter & Parker (2022).
• First steps of planet formation around very low mass stars and brown dwarfs by Pinilla (2022).

Additional articles of interest (send suggestions):

• The Origin and Evolution of Multiple Star Systems by Offner et al. (2022).
• Kinematic Structures in Planet-Forming Disks by Pinte et al. (2022).
• Optical and Near-infrared View of Planet-forming Disks and Protoplanets by Benisty et al. (2022).
• Demographics of young stars and their protoplanetary disks: lessons learned on disk evolution and its connection to planet formation by Manara et al. (2022).
• Circumbinary Accretion: From Binary Stars to Massive Binary Black Holes, Lai & Muñoz (2022).
• Accretion rates in hierarchical triple systems with discs by Ceppi et al. (2022).
• The role of the drag force in the gravitational stability of dusty planet forming disc – I. Analytical theory, Longarini et al. (2022).

List of participants for the kick-off meeting:

1. Nicolás Cuello (Grenoble)
2. François Ménard (Grenoble)
3. Cathie Clarke (Cambridge)
4. Gaspard Duchêne (Grenoble)
5. Giuseppe Lodato (Milano)
6. Isabelle Joncour (Grenoble)
7. Jean-François Gonzalez (Lyon)
8. Álvaro Ribas (Cambridge)
9. Enrique Macías (Munich)
10. Antoine Alaguero (Grenoble)
11. Simone Ceppi (Milano)
12. Benedetta Veronesi (Lyon)
13. Claudia Toci (Munich)
14. Eleonora Bianchi (Munich)
15. Enrico Ragusa (Lyon)
16. Cristiano Longarini (Milano)
17. Andrew Winter (Nice)
18. Evelyne Alecian (Grenoble)

Drivers, departure times and meeting points:

• François at 13h30 from IPAG: Gaspard, Antoine, Evelyne, Eleonora.
• Giuseppe at 13h30 from IPAG: Simone, Claudia, Cristiano.
• Nicolás at 15h30 from Grenoble bus station: Cathie, Álvaro, Andrew.
• Enrico at 12h from Lyon via airport: Benedetta, Enrique.

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