Archivi tag: stellar activity

Cool Stars, Stellar Systems and the Sun

The “Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun” (also known as “Cool Stars”) has been running for 34 years since the first one was held in Cambridge, Massachusetts, in 1980. Previous Cool Stars venues include Santa Fe, NM; Boulder, CO; Seattle, WA; Tucson, AZ; Athens, GA; Florence, Italy; Tenerife, Spain; Hamburg, Germany; Pasadena, CA; St. Andrews, Scotland; and Barcelona, Spain. Lowell Observatory is proud to add Flagstaff, Arizona to this long list of distinguished cities.  Continua a leggere Cool Stars, Stellar Systems and the Sun

PLATO 2.0 Science Workshop

PLATO 2.0 is an ESA M3 candidate mission in the Cosmic Vision Programme and has been designed and optimized from the outset specifically to detect habitable zone rocky sized planets around bright solar type stars. Not only are these host stars suitable for planetary confirmation and follow-up studies, but they are ideal for asteroseismology studies whose impact has been proven from the CoRoT and Kepler missions. Thus PLATO 2.0 will produce catalogues of accurate parameters of terrestrial planets and planetary systems. It will be the first large-scale survey determining the ages of its detected planetary systems from their host stars. PLATO 2.0 data will be vital to test and develop planetary formation and evolution models and to address planetary science questions via its large numbers of accurate bulk planet parameters in systems of all kinds. As a result of the many hundred thousands of stars observed, PLATO 2.0 has furthermore a large complementary and legacy science program, from stellar to galactic science.

The PLATO 2.0 Science Workshop is open to the interested community. It will be held at ESA-ESTEC, Noordwijk, on 29-31 July, 2013. The workshop shall examine the impact that PLATO will make on all areas of exoplanet, stellar, and legacy science areas. The preliminary program addresses a range of topics, describing the mission and where PLATO 2.0 will make an impact, e.g.:

  • The PLATO 2.0 Mission
  • Exoplanet science in the next decade
  • Asteroseismology across the HR diagram
  • Composition and internal structure of planets
  • Planet formation and evolution
  • Indications for extended atmospheres around small planets
  • Star-planet interaction, stellar activity and planet detection
  • Legacy science

Fifty Years of Seismology of the Sun and Stars

In the last 50 years, helioseismology has made significant contributions to the knowledge of the Sun’s interior physics and has led the way to asteroseismology. We have now reached an era where more sophisticated questions are being asked to understand the subtle properties of the Sun and other stars due to the synoptic and high-resolution observations available from BISON, GONG and space missions such as SOHO, SDO, CoRot and Kepler. On this occasion, a workshop on the theme of “Fifty Years of Seismology of the Sun and Stars” is being organized to discuss the advances, reflect on the progress that has been made, and address new challenges. We plan to bring together helio- and asteroseismologists, theorists and observers in a journey that will take us from the interior of the Sun and its magnetism towards the structure of distant stars and activity cycles.

Topics include:

  • Historical perspective
  • Advances in observational technique
  • Solar structure and dynamics
  • Stellar activity and variability
  • Local helioseismology and helioseismic imaging
  • Numerical simulations of convections and waves
  • Seismology of the solar atmosphere
  • Requirements for future instrumentation
  • Prospects for future missions