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Speaker: Laura Kreidberg (MPIA)
Contact Information:
Title: Copernicus Revisited: is the Earth special?
Abstract: Nearly 500 years ago, Nicolas Copernicus published his disruptive theory that Earth is not the center of the universe. This "Copernican demotion" has held fast over the centuries, as astronomers have learned that there is nothing particularly remarkable about Earth or even the Milky Way. In the last two decades, however, a new test of the Copernican Principle has emerged -- the discovery of an abundance of planets orbiting other stars. These discoveries allow us to put Earth in context and evaluate whether the formation, architecture, and present-day characteristics of our Solar System are in fact typical. Thanks to the newly launched James Webb Space Telescope (JWST), we are finally able to study other Earth-size planets in detail, and in particular search for and characterize their atmospheres. In this talk, I will give a status report on JWST observations of rocky planet. I will cover the latest results for the iconic TRAPPIST-1 system, the study of the surface of the airless planet LHS 3844b, the search for atmospheres on lava worlds, and observations of planets in the radius valley at the boundary of rocky and gaseous worlds. Taken together, these results provide a first picture of the building blocks available for the origin of life on terrestrial planets beyond the Solar System, providing essential context for how special Earth really is.
Visitor's room: 129
Visit Schedule:
Visit Schedule:
Monday
10:00 a.m: Akash Gupta (111A)
10:30 a.m.: Coffee
11:00 a.m.: Josh Winn (125)
11:30 a.m.:
12:00 p.m.: Exoplanet Journal Club (Dome Room) -- Optional
12:30 p.m.: Exoplanet Journal Club (Dome Room) -- Optional
1:00 p.m.: Exoplanet Journal Club Lunch -- Optional
1:30 p.m.: Exoplanet Journal Club Lunch -- Optional
2:00 p.m.: Yubo Su
2:30 p.m.:
3:00 p.m.: Rob Tejada (006)
3:30 p.m.: Amir Siraj
4:00 p.m.: Caleb Lammers
4:30 p.m.: Eritas Yang
5:00 p.m.:
Tuesday
9:30 a.m.: Dongzi Li (Peyton 109)
10:00 a.m:
10:30 a.m.: Coffee
11:00 a.m.: Colloquium
11:30 a.m.: Colloquium
12:00 p.m.: Bahcall lunch
12:30 p.m.: Bahcall lunch
1:00 p.m.: Bahcall lunch
1:30 p.m.: Akash Gupta (111A)
2:00 p.m.:
2:30 p.m.: Ankan Sur (116)
3:00 p.m.: Rob Tejada (006)
3:30 p.m.:
4:00 p.m.:
4:30 p.m.: Tea Time with Grad Students in Grand Central
5:00 p.m.: Tea Time with Grad Students in Grand Central
Dinner Sign-up - add your name here:
Dinner Sign-up - add your name here:
Tuesday (28 Jan. 2024)
Faculty Host: Josh Winn
Postdoc Host: Akash Gupta
Caleb Lammers
Amir Siraj
Rob Tejada
Eritas Yang
Gaspar Bakos
Speaker
STUDENTS HAVE PRIORITY.
PLEASE NO MORE THAN 8 PEOPLE (it is more difficult to properly interact with the speaker in larger groups).
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