The Star-Planet Connection - Virtual Workshop

25-28 October 2021

The workshop will be held online.


The detection and characterization of extrasolar planets is a field that has undergone rapid advancements in the past decades. As we push towards the detection of lower-mass planets around Sun-like stars via both direct and indirect techniques our understanding of the host star becomes increasingly important.

Radial velocity and transit surveys are only now achieving the sensitivity necessary to detect low mass planets, and the signals are at a level comparable to or smaller than signals induced by magnetic activity on the stellar surface. Once a planet is detected, precise and accurate stellar parameters are needed in order to infer planetary masses and radii, which in turn yield bulk densities and compositions. At a population level, measurements of host star metallicity and abundances can be used to link stellar composition to the frequency, distribution and properties of planetary systems. Additionally, the presence of a stellar companion can be used to test theories of planet formation in dynamically active environments.

In this workshop we will cover the following topics:

• Fundamental stellar parameters that affect exoplanet detection/interpretation
• Stellar abundances and their effect on exoplanet formation
• Impact of stellar multiplicity on exoplanets
• Stellar activity effects on detecting exoplanets

We aim to identify what aspects of our understanding of stellar properties are limiting our ability to measure and characterize extrasolar planets, to present new ideas on how to overcome them, and to develop new collaborations between researchers studying extrasolar planets and those studying the properties of the stars they orbit.

ESO Code of Conduct:

We aim to host a friendly and productive meeting which is welcoming for everyone. As such, we ask all participants to adhere to the ESO Conference Code of Conduct.  In summary:

  1. Behave professionally. Harassment and sexist, racist, or exclusionary comments or jokes are not appropriate. Harassment includes sustained disruption of talks or other events, inappropriate physical contact, sexual attention or innuendo, deliberate intimidation, stalking, and photography or recording of an individual without consent. It also includes offensive comments related to individual characteristics, for example: age, gender, sexual orientation, disability, physical appearance, race, nationality or religion.
  2. All communication should be appropriate for a professional audience including people of many different backgrounds. Sexual or sexist language and imagery is not appropriate.
  3. Be respectful and do not insult or put down other attendees or facilitators of the event. Critique ideas not people.
  4. Should a participant witness events of bullying, harassment or aggression, we recommend that they approach the affected person to show support and check how they are. The witness may also wish to suggest that the person report the inappropriate behaviour. However, it is up to the affected person alone whether or not they wish to report it.
  5. If participants wish to share photos of a speaker on social media, we strongly recommend that they first get the speaker’s permission. Participants may also share the contents of talks/slides via social media unless speakers have asked that specific details/slides not be shared.


Keywords: Exoplanet characterization | exoplanet detection | exoplanet dynamical evolution and stability | precise stellar parameters | stellar abundances | binary stars and multiple systems | stellar magnetic activity

Workshop email: