life appearance conditions Call of interest HyperEmblematic project P2IO Expression of interest Stellar and Planetary Formation Keywords Structure and dynamics Radiation Magnetic fields ID: 783133
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Slide1
P4 : Stellar system formation and
life appearance conditions
Call of interestHyper-Emblematic project P2IO
Expression of interest
Slide2Stellar and Planetary Formation
Keywords:
Structure and dynamics, Radiation, Magnetic fields,…From interstellar medium to stellar and planetary formation sites
.
Potential teams involved at P2IO
:
DAp/AIM, IAS, CSNSM, IPNO,…
Explaining the formation of stars and planetary systems is one of the fundamental challenges of modern astrophysics. The processes involved are numerous, coupled and multi-scale.A better description would allow a better understanding of many aspects in modern astrophysics.
AMI P4 - P2IO – 15 nov. 2017
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Key question to be answered:
How do stars form?
Do we understand stellar structure and evolution?
What is the life-cycle of the interstellar medium and stars?
How do planetary systems form and evolve?
What is the diversity of planetary systems across the Galaxy?
Is there any evidence for life on exoplanets?
Slide3Each P2IO team is involved in some of these topics
Following different approaches:Instrumentation, multi-wavelength observations (including granted time in many facilities),
laboratory experiments simulating the micro-physics of astrophysical environments, numerical simulations, modelling, theory, …Being at the state of the art of each topicObjectives of the project:To create an exceptional pole combining all the skills at P2IOAIM, IAS, CSNSM, IPNO, …
To coordinate the different approaches within all the teams
Focus on selected questions
Improve the synergies
Increase the international visibility of P2IO AMI P4 - P2IO – 15 nov. 20173Stellar and Planetary Formation
Slide4AMI P4 - P2IO – 15 nov. 2017
Alma
Artemis/APEXNIKA2/IRAM
XMM
VISIR/VLT
Hayabusa-2
Juice
ELT
Euclid
SPICA
JWST
…
Ariel
Stellar and Planetary Formation
Slide5Numerical simulations
Dynamics of a magnetized material (gas & grains)Role of the radiative transfer from diffuse interstellar medium to stellar and planetary formation sites?
Instabilities, turbulence, transport of angular momentum and magnetic flux Protoplanetary disks: dynamics of charged grains and growth towards planetesimalsObservations Multi wavelength: from X to submillimeter
What observables are needed to trace the physical conditions and evolution of interstellar matter in galaxies?
What steps lead to global formation?
How is the gas dissipated?
How are the grains incorporated in the discs? The formation of the solar system and its evolution is exceptional or general?Laboratory experiments Dominant processes of grain production, growth and fragmentation?
Role of irradiation (by photons or cosmic rays) on grain properties and their coupling to gas? To extract the solar system archives contained in the extra-terrestrial samples collected and analysed What is the chemical composition of the nebula and how are the elements distributed?
AMI P4 - P2IO – 15 nov. 2017
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Complementary approaches inside P2IO
Stellar and Planetary Formation
Slide6AMI P4 - P2IO – 15 nov. 2017
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Website : https://www.ias.u-psud.fr/core2disk/Stellar and Planetary Formation These synergies are not artificial. Teams are complementary
P4 teams are already working together
But
at a small scale
Example of on-going collaborations at P2IO: a 6 weeks international workshop (AIM, IAS & CSNSM)Formation, collapse and fragmentation of dense coresEvolution of protoplanetary discs including:the origin of the angular momentum
transportthe dynamics of gas and dustthe growth from grains to planetesimals
Solar nebulae constituents:
Study grains and meteorites from
a dynamical and chemical perspectives
Slide7AMI P4 - P2IO – 15 nov. 2017
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Stellar and Planetary Formation Hyper-Emblematic project at P2IO on this P4 discipline is:Improve and further develop the synergies between the teamsNecessary to extract the best science at P2IOFocus on given selected objectives
Increase the international visibility
Increase the return of investment
Timely:
Many new facilities being developed or starting operationsState of the art knowledge in each team that provide input or interpretations to the science done in another groupThe key questions that could be treated can impact many other disciplines in modern astrophysics