Core2disk III

25 sept. 2023, 09:00 → 20 oct. 2023, 17:00 Europe/Paris

Institut Pascal

The role of magnetic fields in disk formation, evolution, and planet formation

Note to the participants: don't forget to join our Slack group for updated information and exchange with the participants (see email sent on Sept 20 by our programme manager Francesca Sconfienza)

 

With the launch of JWST, supplemented by ground-based observatories (ALMA, VLT, the future ELT), the field of disk and planet formation is expanding. These new observational progress, as well as the development of comprehensive models and numerical simulations including more and more physical ingredients, open an avenue to meaningful combination of results from the different communities. The Core2disk-III workshop aims at transcending the historical divisions between communities, linking together observers, theoreticians, and experimentalists, and covering all evolutionary stages from disk formation to disk dispersal.

Unlike typical conferences, the daily schedule of Core2disk is composed of informal talks in the morning, and collaborative work or discussions in the rest of the day, with dedicated offices, small meeting rooms, and open lounge spaces. The objective will be to foster in-depth discussions on current issues and to define future lines of work. In particular, four general themes will be discussed:

 

Week 1: Disk formation and early evolution: the role of magnetic fields, dust, and chemistry.

   Monday: Magnetic fields, non-ideal MHD, collapse models 

   Tuesday: Observations of disks and B fields

   Wednesday: Dynamics: infall, streamers, outflows, fragmentation

   Thursday: Gas ionization, chemistry

   Friday: Dust evolution, polarization

 

Week 2:  Constraints on magnetic winds vs turbulent disk evolution from population surveys, from Class 0 to Class II.

   Monday: Disk surveys in the continuum: Which evolution from Class 0 to Class II?

   Tuesday: Estimates of gas masses, sizes, and accretion rates

   Wednesday: Disk population synthesis models: achievements

   Thursday: Photoevaporation models: current status and open issues

   Friday: Open issues: Magnetic flux diffusion and environmental effects

 

Week 3:  Disk winds and dead zone location: theories confront observations.

   Monday: Physics of MHD disk winds and dead-zone location

   Tuesday: Observational evidence of disk winds and their properties

   Wednesday: Wind origin: synthetic observations of MHD and photoevaporative winds versus observations

   Thursday: Alternative scenarios

   Friday: Open issues (joint discussion)

 

Week 4:  Planet formation and migration in magnetised disks (including rings, gaps, and transition disks)

   Monday: Observations of PPD structures

   Tuesday: Dust growth, streaming instability, planetesimal formation

   Wednesday: Models of planet formation

   Thursday: Detailed studies of planet migration

   Friday: Solar System constraints, open questions, and future prospects

Scientific Organizing Committee:

G. Lesur
K. Dullemond
S. Cabrit
R. Nelson
P. Hennebelle
A. Maury
L. Testi
F. Bacciotti
E. Habart
B. Tabone

LOC:

B. Tabone
S. Cabrit
P. Hennebelle
U. Lebreuilly
N. Anez
 

Acknowledgments: Core2disk-III is supported by the LABEX P2IO, the PCMI, PNPS, and PNP programs, and the OSU Paris-Saclay.

attendance_core2disk_20sept.pdf

lundi 25 septembre

09:00 → 12:45 Magnetic fields : non-ideal MHD collapse models

09:15 Registration (access badge and lunch tickets distribution)

09:30 Welcome Introduction by Institut Pascal Director

09:45 Magnetized models (review)

Orateur: Kengo Tomida (Tohoku University)

10:25 Models with ionization from protostellar CR, stellar feedback (review)

Orateur: Stella Offner (University of Texas at Austin)

11:05 Discussion in amphitheater / coffee

11:45 Gonzalez (multiplicity in models vs obs)

12:00 Mauxion (non-ideal disk formation+evolution with Idefix)

Orateur: Jonah Mauxion (CNRS/IPAG)

12:15 Commercon (disks in massive star formation)

Orateur: Benoit COMMERCON (CRAL)

mardi 26 septembre

09:30 → 12:40 Observations of disks and magnetic fields

09:30 e-disk (review) - Ohashi

10:10 Girart (observations of magnetic fields)

Orateur: Josep Miquel GIRART MEDINA (Institut de Ciencies de l'Espai / Instiute of Space Sciences)

10:50 Discussion in amphitheater / coffee

11:50 Sturm (disk + dust properties from JWST data)

Orateur: Ardjan Sturm;Sturm (Leiden Observatory)

12:05 Lebreuilly (synthetic populations of protoplanetary disks)

12:20 Tung N.D. (measuring Class0 disk sizes from synthetic observations)

Orateur: Duy Tung Ngo

mercredi 27 septembre

09:30 → 12:40 Dynamics: infall, streamers, outflows, fragmentation

09:30 Pineda (streamers in protostellar envelopes)

10:10 CF Lee (ALMA obs of disks and outflows)

10:50 Discussion in amphitheater / coffee

11:50 Nacho Anez-Lopez (how to measure magnetic braking)

Orateur: Nacho Anez Lopez (AIM/CEA Saclay)

12:05 Maureira (obs of IRAS16293, dynamics and dust properties)

Orateur: Maria Jose Maureira (MPE)

jeudi 28 septembre

09:30 → 12:30 Gas ionization, chemistry

09:30 Redaelli (how to measure ionization from observations of cores)

10:10 Le Gal (chemistry & ionisation in disks, MAPS etc)

Orateur: Romane LE GAL (IRAP)

10:50 Discussion in amphitheater / coffee

11:50 Pineda (ionization in NGC1333)

12:05 Girart (obs ionization B335)

vendredi 29 septembre

09:30 → 13:05 Dust evolution, polarization

09:30 Kataoka (scattering, dust properties in disks)

Orateur: Akimasa Kataoka (National Astronomical Observatory of Japan)

10:10 Maury (polar and dust evolution in protostars)

Orateur: Anaëlle Maury (CEA/DAp/AIM)

10:50 Discussion in amphitheater / coffee

11:50 Marchand (effect of grain size on coupling)

Orateur: Pierre Marchand (IRAP, Toulouse)

12:05 Cacciapuoti (dust properties in L1527)

Orateur: Luca Cacciapuoti (European Southern Observatory)

12:20 Lombart (models of dust evolution)

Orateur: Dr Maxime Lombart (National Taiwan Normal University)

lundi 2 octobre

09:10 → 12:45 Disk surveys in the continuum: which evolution from Class 0 to Class II?

Morning
9.20-9.35 am: introduction and summary of week 1 by Sylvie Cabrit
9.35-10.10 am: review talk by Jonathan Williams ; Disk surveys in the (sub-)mm
Contributed talks:
- 10.10-10.30 am: Lukasz Tychoniec ; Class 0/I disk surveys in the (sub-)mm
Coffee break/discussions: 10.30-11.00 am
- 11.00-11.15 am: Akimasa Kataoka ; dust growth/properties (summary of week 1)
- 11.15-11.35 am: Andrew Sellek ; evolution of dust continuum with radial drift and growth for viscous disks
- 11.35-11.50 am: Francesco Zagaria ; evolution of dust continuum with radial drift and growth for MHD driven evolution
11.50-12.45: discussions
12.45 pm: buffet at the Institut Pascal
Afternoon
- 2.00-4.30 pm: collaboration and discussions in small groups - 4.30 pm: joint discussion in the amphitheater (TBD)

09:10 Registration (access badge and lunch tickets distribution)

09:30 introduction and summary of week 1 by Sylvie Cabrit

09:45 review talk by Jonathan Williams ; Disk surveys in the (sub-)mm

Orateur: Jonathan Williams (University of Hawaii)

10:20 Lukasz Tychoniec ; Class 0/I disk surveys in the (sub-)mm

Orateur: Lukasz Tychoniec (European Southern Observatory)

10:40 Coffee break/discussions: 10.30-11.00 am

11:00 Akimasa Kataoka ; dust growth/properties (summary of week 1)

Orateur: Akimasa Kataoka (National Astronomical Observatory of Japan)

11:15 Andrew Sellek ; evolution of dust continuum with radial drift and growth for viscous disks

Orateur: Andrew Sellek (University of Leiden)

11:30 Francesco Zagaria ; evolution of dust continuum with radial drift and growth for MHD driven evolution

Orateur: Francesco Zagaria (Institute of Astronomy, University of Cambridge)

11:45 discussions

mardi 3 octobre

09:30 → 12:45 Observational constraints on gas masses, radii, and accretion rates

09:30 review talk by Justyn Campbell-White ; Accretion rates in Class IIs results form recent surveys

Orateur: Justyn Campbell-White (European Southern Observatory)

10:00 contributed talk by Eleonora Fiorellino ; Accretion rates in Class I protostars

Orateur: Eleonora Fiorellino (INAF - Osservatorio Astronomico Capodimonte)

10:20 Coffee break/discussions: 10.20-10.50 am

10:50 review talk by Ted Bergin ; Disk gas mass estimates from molecular lines

Orateur: Edwin Bergin (University of Michigan)

11:25 Dana Anderson ; benchmark of thermochemical models to infer gas masses

11:40 Aashish Gupta ; Late infall and its potential effect on Class II disks

Orateur: Aashish Gupta (European Southern Observatory (ESO))

mercredi 4 octobre

09:30 → 12:45 Disk population synthesis models: achievements and next steps

Morning
9.30-10.05 am review by Richard Alexander ; disk population synthesis approach: framework, method, and results
3 Contributed talks:
- 10.05- 10.25 am: Alice Somigliana ; MHD-driven versus viscous evolution
Coffee break: 10.25-11.00 am
- 11.00- 11.20 am: Jesse Weder ; consistent models with PEW and MHD disk winds
- 11.20- 11.40 am: Claudia Toci ; models of gas and disk radii evolution vs observations
11.40-12.45: discussions
Afternoon
- collaboration and discussions in small groups
- 4.30 pm: joint discussion in the amphitheater (TBD)

09:30 review by Richard Alexander ; disk population synthesis approach: framework, method, and results

Orateur: Richard Alexander (University of Leicester)

10:05 Alice Somigliana ; MHD-driven versus viscous evolution

Orateur: Alice Somigliana (ESO)

10:25 Coffee break: 10.25-11.00 am

11:00 Jesse Weder ; consistent models with PEW and MHD disk winds

Orateur: Jesse Weder (University of Bern)

11:20 Claudia Toci ; models of gas and disk radii evolution vs observations

Orateur: Claudia Toci (INAF)

11:40 11.40-12.45: discussions

jeudi 5 octobre

09:30 → 12:45 Disk photoevaporation models: current status and open issues

9.30-10.05 am: review by Uma Gorti ; Photoevaporative winds from turbulent disks: results and open issues
3 Contributed talks:
• 10.05-10.25 am: Andrew Sellek ; the role of the X-ray spectrum in the mass-loos rates
Coffee break: 10.25-11.00 am
• 11.00-11.20 am: Ryohei Nakatani ; Are photoevaporative winds molecular ?
• 11.20-11.40 am: Giovanni Picogna: Stellar mass dependency 11.40-12.45: discussions
Afternoon
- 2.00-4.30 pm: collaboration and discussions in small groups - 4.30 pm: joint discussion in the amphitheater (TBD)
Conference dinner at Le Gramophone
Evening

09:30 review by Uma Gorti ; Photoevaporative winds from turbulent disks: results and open issues

Orateur: Uma Gorti (SETI Institute)

10:05 Andrew Sellek ; the role of the X-ray spectrum in the mass-loos rates

Orateur: Andrew Sellek (University of Leiden)

10:25 Coffee break: 10.25-11.00 am

11:00 Ryohei Nakatani ; Are photoevaporative winds molecular ?

Orateur: Riouhei Nakatani (JPL/Caltech)

11:20 Giovanni Picogna: Stellar mass dependency

Orateur: Giovanni Picogna (USM - LMU Munich)

11:40 11.40-12.45: discussions

vendredi 6 octobre

09:30 → 12:50 Open issues: Magnetic flux diffusion and Environmental effects

Morning
9.30-9.45 am: summary of the Ringberg meeting by Geoffroy Lesur ; B-flux evolution and disk surface density profile
9.45-10.15 am: discussion
Coffee break: 10.15-10.45 am
10.45-11.20: review talk by Andrew Winter ; On the relevance and effects of external FUV on disk evolution
3 Contributed talks:
- 11.20-11.40 am: Rossella Anania ; Disk population synthesis for AGE-PRO with external FUV - 11.40-12.00 am Dominika Itrich : Accretion and winds in irradiated regions seen by MUSE
- 12.00-12.10 am Emilie Habart ; JWST observations of irradiated disks in the Orion Bar
12.10-12.45: discussions

09:30 summary of the Ringberg meeting by Geoffroy Lesur ; B-flux evolution and disk surface density profile

Orateur: Geoffroy LESUR (CNRS/IPAG)

09:45 9.45-10.15 am: discussion

10:15 Coffee break: 10.15-10.45 am

10:45 review talk by Andrew Winter ; On the relevance and effects of external FUV on disk evolution

Orateur: Andrew Winter (Observatoire de la Côte d'Azur)

11:20 Rossella Anania ; Disk population synthesis for AGE-PRO with external FUV

Orateur: Rossella ANANIA (Università degli Studi di Milano)

11:40 Dominika Itrich : Accretion and winds in irradiated regions seen by MUSE

Orateur: Dominika Itrich (ESO)

12:00 Emilie Habart ; JWST observations of irradiated disks in the Orion Bar

Orateur: Emilie Habart (Institut d'Astrophysique Spatial)

12:20 discussions

lundi 9 octobre

09:00 → 13:00 Physics of MHD Disk winds and Dead Zone location (chair: Lesur)

09:00 registration of new comers (distribution of access badges and lunch tickets)

09:30 Bai (basics of non-ideal MHD disk wnds and the dead-zone)

10:05 Zhu (basics of ideal-MHD winds in MRI-active turbulent discs)

10:40 coffee

11:00 Flock (Dead zone location and dynamics: new results)

11:20 Zhi-Yun Li (Gas and Dust Structuring in Magnetized Wind-Launching Disks)

11:40 Martel (MHD models of transition disks)

12:00 open discussion + poster presentations (if any)

mardi 10 octobre

09:30 → 14:35 Observational evidence for disks winds and their properties (chair: Bacciotti)

09:30 Dougados : Spatially resolved evidence of disk winds

10:05 Nisini (JWST observations of the HH46-47 system)

10:25 Whelan (spectro-astrometry of jets and winds)

10:45 Coffee

11:15 Flores (optical spectroimaging of the atomic component)

11:35 Lopez-Velazquez (multiple shells in the HH30 molecular outflow with ALMA)

11:55 Bacciotti (the layered HL Tau outflow seen with ALMA)

12:15 open discussion

14:00 Banzatti (spectral signatures of low-velocity disk winds)

mercredi 11 octobre

09:30 → 13:00 Synthetic predictions for MHD and PE winds vs observations (chair: Cabrit)

09:30 J. Goodmann (thermo-chemistry and radiative transfer in PE and MHD disk winds)

10:05 Gressel (heating and ionization in irradiated MHD disk winds)

10:25 Coffee break

11:00 Rab: synthetic predictions of line profiles for PE winds

11:20 Tabone: signatures of MHD disk winds vs observations

11:40 summary on PE wind benchmarks from week 2

12:00 Discussion: how to discriminate between MHD and PE disk winds ?

jeudi 12 octobre

09:30 → 12:30 Alternative interpretations (chair: Hennebelle)

09:30 Shang: magnetized bubbles as integrated and unified outflows

10:05 Cabrit (Models of outflow entrainment in young stars)

10:40 Coffee break

11:10 Podio (infall streamers in class 1 and class 2 wind sources)

11:30 Lesur (effect of planet gaps on MHD DW sub-structure)

11:50 Discussion: how to discriminate between disk winds and entrainment ? (1h)

vendredi 13 octobre

09:30 → 14:50 Summary and Future Perspectives (chair: Tabone)

09:30 Pinte (constraints on DW origin from disk kinematics)

09:50 Harrison (constraints on disk B-field from Zeeman measurements)

10:10 Coffee

10:40 Summary of progress made, major unsolved questions, and future paths (models, joint proposals, ELT opportunities...)

14:30 Fendt (dynamo-driven disk winds)

lundi 16 octobre

09:30 → 12:30 Observations of PPD structures (Chair: Sylvie Cabrit)

09:30 Myriam Benisty - Observational studies of disk structures

10:15 Jaehan Bae - Theoretical studies of disk structures

11:00 Coffee and discussion in the amphitheatre

11:45 Christophe Pinte - ALMA observations of planet-induced kinematic kinks in PPDs

12:00 Stefano Facchini - Novel observations of disk kinematics and chemistry promoting planet formation

12:15 Alexandros Ziampras - Radiation-hydrodynamic simulations of planet-induced gaps

mardi 17 octobre

09:30 → 12:45 Dust growth and planetesimal formation (Chair: Farzana Meru)

09:30 Anders Johansen (Remote talk) - The streaming instability

10:15 Akimasa Kataoka - Recap from week 1 on observations of dust in discs

10:30 Francois Menard - Observations of dust properties in protoplanetary disks

10:45 Coffee and discussion in the amphitheatre

11:30 Francesco Lovascio - The polydisperse streaming instability

11:45 Nathan Magnan - Vortex-induced planet formation

12:00 Ziyan Xu - MRI turbulent trapping rings as efficient sites for planetesimal formation

12:15 Fabiola Antonietta Gerosa - New insights on planetesimal formation in turbulent disks

12:30 Katsushi Kondo - Snowline evolution in PPDs

mercredi 18 octobre

09:30 → 12:30 Models of planet formation (Chair: Richard Nelson)

09:30 Alessandro Morbidelli - Pebble accretion

10:15 Bertram Bitsch (Remote talk) - Giant planet formation

11:00 Coffee and discussions in the amphitheatre

11:45 Farzana Meru - Sandwiched planet formation:restricting the mass of the middle planet

12:00 Zhaohuan Zhu - Magnetospheric accretion and young planets

12:15 Yuri Fujii - Formation of satellites

jeudi 19 octobre

09:30 → 12:30 Detailed studies of planet migration (Chair: Zhaohuan Zhu)

09:30 Clement Baruteau - Overview of planet migration theory

10:15 Elena Lega - Migration and accretion by giant planets in discs with laminar accretion flows

10:30 Xuening Bai - Gap formation and migration by giant planets in discs with magnetised winds

10:45 Gaylor Wafflard-Fernandez - Planet-disk-wind interactions in protoplanetary disks: massive planets in magnetized disks

11:00 Coffee and discussions in the amphitheatre

12:00 Philippine Griveaud - Migration of giant planets in low-viscosity discs.

12:15 Carolin Kimmig - Can magnetic disk winds induce planetary migration?

vendredi 20 octobre

09:30 → 12:30 Planet formation in magnetised discs: Solar System constraints, open questions and future prospects (Chair: Kees Dullemond)

09:30 Clara Maurel - Paleomagnetism and parent bodies in the Solar System

10:15 Xuening Bai - Comparing non-ideal MHD disk simulations and paleomagnetic measurements

11:00 Coffee and discussions in the amphitheatre