Cool Stars 20.5 - virtually cool

March 2-4 2021, virtual meeting

The "Cambridge Workshops of Cool Stars, Stellar Systems and the Sun" are held biennially and have evolved to be the premier conference series for cool star research.

With the ongoing pandemic, the organizers of Cool Stars 21 consider it unlikely we will be able to meet in person in the summer of 2021. This would put a four year gap between our meetings for the first time. Therefore we have decided to hold a virtual conference to keep everyone in our field up to date. But don't worry, we still plan to meet in Toulouse in mid-2022.


The following topics will be covered:

  • The Sun and the Heliosphere
  • Very low mass stars
  • Post main sequence cool stars
  • Young stars
  • Cool Stars on the main sequence
  • Stellar systems, clusters, and associations

Invited speakers

  • Nate Bastian - Liverpool John Moores University
  • Aleida Higginson - Applied Physics Laboratory
  • Justin Kasper - University of Michigan / BWX Technologies
  • Miguel Montargès - LESIA, Observatoire de Paris - PSL (Meudon, France)
  • Eleonora Zari - Max Planck Institute for Astronomy


All scheduling information is nominal.

Daily synchronous sessions via a Zoom webinar. These sessions will be 3 - 4 hours long (with breaks), and will be held from ~17:00 to 20:00/21:00 UTC. The webinars will be recorded, and uploaded to Youtube.

Topical interest rooms

To facilitate collaboration on subjects of common interest we plan to host a number of "topical interest rooms" for about an hour at the end of each day's session. Unlike "Splinter sessions" in traditional Cool Stars conferences, a "topical interest room" does not have a list of speakers or presentations, but just a minimal agenda with maybe 3-5 subtopics to discuss. Anybody is free to share slides and data in a working group format. Possible discussion topics should be broad enough to be of general interest and narrow enough that a science goal could be effectively discussed in no more than one hour. Use the form below to suggest a topic (and volunteer to chair a room with the topic you suggested). Deadline for suggestions: Feb 19 2021.