Special Session SS27 3 April 2018

The Alpha Centauri system as a benchmark for stellar and planetary systems

Aims and scope

The discovery of Proxima b, the temperate terrestrial exoplanet orbiting our nearest neighbour, the star Proxima Cen, has given a renovated impulse to the study of this stellar system and its environment, including the search for new planets and the modelling of the known ones. The aim of this Special Session is to bring together all the knowledge gathered for the system and provide focus to the interdisciplinary research needed to stablish it as a benchmark in astrophysics.

The general topics to be addressed at the session will try to answer the following questions:

  • a. How well do we know the Alpha Cen system? How well can we characterize it with current techniques? (Keywords: Binary and Multiple Star Systems and fundamental parameters, Magnetic activity and pulsations, circumstellar environment)
  • b. What is the history of our closest neighbours? (Keywords: Stellar and planet formation and evolution)
  • c. What do we know about the current planet population in the system? What can we learn in the future with telescopic observations? (Keywords: Proxima b, exoplanets, star-planet interaction, exoplanet atmospheres, bio-signatures and astrobiology, current and future telescopic instrumentation)
  • d. What can we learn with in-situ observations? How do we get there? (Keywords: Exoplanet interiors, surface processes, geological evolution and possible biology, future missions into interstellar space, in-situ instruments and other advance concepts)
  • e. How do we disseminate what we learn about this system? (Keyword: outreach)

Programme
Work in progress

Sub-session 1 (1.5h): How well do we know the Alpha Cen system? How well can we characterize it with current techniques? What is the history of our closest neighbours?

Sub-session 2 (1.5h): What do we know about the current planet population in the system? What can we learn from observations with the next generation of telescopes?

Sub-session 3 (1.5h): What can we learn with in-situ observations? How do we get there? How do we do our research to better reach the public?

Invited speakers
Work in progress

Scientific organisers

  • Pedro J. Amado (Chair; Spain, Europe)
  • Guillem Anglada-Escude (Co-chair; UK, Europe)
  • Ansgar Reiners (Co-chair; Germany, Europe)
  • France Allard (France, Europe)
  • Carlos Allende-Prieto (Spain, Europe)
  • Eric Gaidos (USA, America)
  • Pierre Kervella (France, Europe)
  • Karen Pollard (New Zeland; Oceania)
  • Ignasi Ribas (Spain, Europe)
  • Barbara Rojas-Ayala (Chile, America)
  • Oana Sandu (Germany, Europe)

Contact
Pedro J. Amado (pja @ iaa.csic.es) Guillem Anglada-Escudè (g.anglada @ qmul.ac.uk) Ansgar Reiners (ansgar.reiners @ phys.uni-goettingen.de)

Updated on Fri Nov 10 12:33:58 CET 2017