Workshop in Saclay, France. 18-21 november 2014

SPI 2014


Registration  closed Program Venue & accommodation Organisers Participants




Second announcement

With the discovery of more than 2000 exo-planetary systems, the diversity of known star(s)-planet(s) systems and their configurations is wider and wider. The selection as Cosmic Vision M3 mission of the Plato satellite encourages the scientific community to organize itself to make the most useful use of the upcoming data, with the Corot and Kepler satellites having laid the basis of such an effort. In order to understand the multiplicity of observed configurations, we need to develop state-of-the-art theoretical and numerical models, which take into account simultaneously magnetic, tides and radiation interactions between the host star(s) and their surrounding planet(s) as well as their internal and structural evolution.
Interactions between the star-planet system and its interstellar environment at various phases of star evolution will also be discussed. Likewise defining with more accuracy what could be considered as the habitable zones of stars of various spectral type and the possibility to even have super-habitable worlds is timely.
This is the main goal of the Star-Planet Interactions and the Habitable Zone Workshop.
The workshop will focus on the latest developments obtained with high performance numerical simulations and on the modelling of the underlying physical processes to improve our knowledge and understanding of star-planet systems as well as their direct comparison with ground-based and space-born observations. The workshop will gather known experts from all over the world in a format favouring exchange and cross-fertilization by giving ample of time to discussion. The workshop will be organized 
following 4 sessions, one devoted to Tidal effects, one on MHD interactions, one on the evolution of stars and planets (atmosphere, rotation, structure) and the fourth one on the first attempts to couple these processes together. All sessions will discuss the impacts of these various effects/physical processes on habitability and on the condition of the emergence of life.
4 key-notes lecturers have agreed to open a session each day:
Day 1 on Tides and Habitability: Prof. Jacques Laskar
Day 2 on Magnetic Interaction and Habitability: Dr. Aline Vidotto
Day 3 on Evolution and Habitability: Prof. Gordon Ogilvie
Day 4 on Coupling all effects and Habitaiblity: Prof Nuccio Lanza

Important dates

Deadline for travel support: 1st of October
Deadline for abstract submission for 30 mn talk: 15th of October
Announcement of final scientific program: 22nd of October
Deadline for registration: 5th of November
Meeting  starts on the 18th of November (starting at 9am) and ends on the 21st of November 5pm


Program  SPI_PRG_FINAL.pdf 

Day 1 - Tidal effects and Habitability                                 

9h15 – 10h05 J. Laskar  - Key note lecture  JLaskar_Saclay2014B.pdf

10h05 – 10h40 E. Bolmont: Dynamics of exoplanetary systems, links to their habitability  Bolmont_Paris_1811.pdf

10h40 – 11h15 A. Correia: Tidal evolution of close-in exoplanets using a Maxwell viscoelastic rheology  Saclay2014-Correira.pdf

Coffee break

11h45- 12h20 V. Lainey : Observational constraints on the tidal k2/Q in the solar system  Lainey-IRFU-2014.pdf

12h20- 12h55 C. Damiani: The role of tidal dissipation on the evolution of planetary systems  Damiani_Saclay.pdf


14h25 – 15h00 S. Mathis : Tidal dissipation in stars and fluid planetary layers and their impact on the evolution of star-planet systems  Mathisetal-SPI.pdf

15h00 - 15h35  G. Tobie : The tidal response of super-Earths and large icy worlds  Tobie_Super_Earths_Star-Planet_IRFU.pdf

15h35 – 16h10 F. Remus : Role of internal structure on the tidal dissipation of giant planets

Coffee break

16h40 – 17h15 D. Cebron : Tidally driven flows and magnetic fields due to the elliptical instability  Cebron_SPI2014.pdf

17h15-17h50  R. Dvorak : Tides of encountering planetesimals  Dvorak_paris14-fin.pdf

17h50-19h00 Discussion


Day 2 - Magnetic interactions and Habitability 

9h00 - 9h50 A. Vidotto - Key note lecture  vidotto-saclay.pdf

9h50 – 10h25 P. Zarka : Radio diagnostic of star-planet plasma interactions  SPIH-PZ.pdf

10h25 – 11h00  A. Strugarek : On the diversity of magnetic star-planet interactions  Strug_SPI.pdf

Coffee break

11h30- 12h05 F. Leblanc : Mars-solar wind interaction : coupling between hybrid, ionospheric, thermospheric and exospheric models  SPI_Meeting_LeblancF_2014.pdf

12h05 – 12h40 J. Varela : The effect of the interplanetary magnetic field orientation in the Hermean magnetosphere structure  Saclay_2014-Varela.pdf


14h10-14h45 D. Nandy : Long-term Activity Evolution of the Sun-as-a-Star

14h45 – 15h20 S. Brun : Stellar magnetism and its impact on habitability  SPI2014_ASB.pdf

15h20 – 15h55  B. Fichtinger : Stellar winds of young solar-like stars and their mass loss  Fichtinger_SPI_Workshop_Saclay_19112014.pdf

Coffee break

16h30- 17h05 C. Johnstone : Influence of stellar wind on planet’s atmosphere  SaclayTalkJonstone.pptx

17h05-17h50 Discussion

17h50- 19h30 Ice Breaker cocktail


Day 3 – Evolution and Habitability                 

9h00 - 9h50 G. Ogilvie - Key note lecture  saclay 2014-GO.pdf

9h50 – 10h25 A. Palacios : How do stellar evolution and parameters influence the habitable zone ?  SPI2014_Palacios.pdf

10h25 – 11h00 F. Forget : Modelling exoplanetary climates and habitability  forget_saclay_2014.pdf

Coffee break

11h30- 12h05 E. Meheut : Large scale vortices: the planets birthplace?  Meheut.pdf

12h05 – 12h40 V. Minier : Initial conditions for habitability : the triggered star formation phase  SPI2014-minier.pdf


14h10-14h45 P.O. Lagage : JWST/Miri and the exo-planets program  POLagage_MIRI-Exoplanets-Saclay-2014.pdf

14h45 – 15h20 E. Chassefiere : Initial conditions and early evolution of terrestrial planets  StarPlanetChassefiere.pdf

15h20 – 15h55 H. Massol : Thermal evolution of an early magma ocean in interaction with the atmosphere on terrestrial planets

Coffee break

16h30-17h05 F. Selsis : Impact of tidal heating on exo-planet atmosphere dynamics and chemistry  SPI_Selsis.pdf

17h05 – 17h40  D. Bancelin : Water delivery into circumprimary habitable zone and impact probabilities in the early phases of planetary systems in binary star systems  Water_transport.pdf

17h40-18h30 Discussion

Day 4 - Coupling all effects and habitability

9h00 - 9h50 N. Lanza - Key note lecture - Some tidal and magnetic effects and their impact on evolution and habitability of planetary systems   Lanza_Saclay2014_keynote_talk.pdf

9h50 – 10h25  K. Penev : POET : a secular evolution model of star-planet system  SPI-Penev.pdf

10h25 – 11h00 N. Prantzos : On the Galactic Habitable Zone, the Drake equation and the Fermi Paradox  Prantzos_GHZ_DrakeFermi.pdf

Coffee break

11h30- 12h05 S. Vauclair : Influence of the accretion of planetary matter on the stellar chemical composition, and hydrodynamical consequences  saclay-2014-SV.pdf

12h05 – 12h40 J. Schneider : Extension of the habitability zones  JSchneider_Habitability-Saclay.pdf


14h10-14h45 X. Abrevaya : The Exo-UV project : habitable stars and the characterization og UV radiation environment of extrasolar planets  Abrevaya-summarized-talk-Saclay.pdf

14h45 – 15h20 N. Georgakarakos : Habitable zones in stellar binairies  Georgokaros-saclay2.pdf

15h20 - 15h55 P. Tremblin : Modeling UV photo-chemistry and clouds in the atmosphere of exoplanets  2014_Tremblin_irfu.pdf

15h55 -17h00 – Discussion/Conclusion


Program in pdf format:  SPI_PRG_FINAL.pdf





4-day workshop on the third week of November 2014 (18th to 21st) in Saclay, near Paris, France.

Acces: Bat 713- Salle Galilée in CEA-Saclay - Orme des Merisiers by RER B line (south bound to Saint Rémy les Chevreuses)  by stopping at  station “Le Guichet” and then taking a Bus up and stop at the bus stop: Orme des Merisiers - St Aubin (near synchotron Soleil). Then walk through the entrance with red brick walls and go in the direction of Building 713 (near 709 and 703) one of the first building on your left as you walk. In the evening, take the CEA shuttle from l'Ormes des merisiers (Building 703) to the le Guichet station to take RER B to Paris.

For those colleagues coming from outside the Paris area and from abroad we
have secured some funding to cover part of your expences. Deadline for requesting
a support is 1st of October.

No registrations fees and free lunches and coffee breaks will be provided.



To help you in your search we have an agreement for a discount CEA rate with some Hotels by using codename 

“CEA” or “SPI Workshop” or “Conference in Astrophysics”.

2 hotels in downtown Paris, near Place Denfert-Rochereau, and an easy access to RER B line:

Hotel du Midi :

Hotel du Lion :

2 hotels near CEA-Saclay - Orme des Merisiers

Hotel Le Village, Gif-sur-Yvette :

or Hotel Chevalier des Balances in St-Aubin :


Organisers of the SPI & Habitable Zone workshop

A.S. Brun, C. Leponcin-Lafitte, S. Mathis, V. Minier







maj : 20-01-2015 (3455)

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