January 30, 2024

Speaker: Jonathan Fortney (UCSC)

Contact Information: jfortney@ucsc.edu

Title:  New views of planetary and brown dwarf atmospheric physics and chemistry with JWST

Abstract: JWST has enabled high-fidelity infrared spectroscopy for a wide range of transiting planets, directly imaged planets, and brown dwarfs.  In the past year, for transiting planets, observers have detected several molecules for the first time in an exoplanet.  In this talk I will describe observations of several planets from the MANATEE collaboration, which focuses on Jupiter- and Neptune-class planets in a new temperature regime, below 1000 K, where a range of chemical transitions are expected to occur.  These new observations require a range of new modeling efforts, and in my work I seek to make connections between a diverse range of atmospheres.  These impressive observations enable us to break new ground on previously highly uncertain atmospheric process.  These include the physics of mixing in (isolated) brown dwarfs and in (strongly irradiated) transiting planets, as well as the role of the atmosphere/interior connection, far below the visible atmosphere, in helping to dictate visible atmospheric abundances.

Visitor's room: 127

Visit Schedule:

Tuesday (January 30, 2024):

• 9:30 a.m.: Akash Gupta (Peyton 110)

• 10:00 a.m:  Adam Burrows (Peyton 105)

• 10:30 a.m.: Pre-Colloquium Refreshments (Grand Central)

• 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.:  Jo Dunkley (Peyton 127)

• 2:00 p.m.: Ashley Chontos (Peyton 103)

• 2:30 p.m.: Gaspar Bakos (Peyton 133) 

• 3:00 p.m.: Tea Time with Grad Students in Grand Central 

• 3:30 p.m.: Tea Time with Grad Students in Grand Central 

• 4:00 p.m.: Josh Winn (Peyton 125)

• 4:30 p.m.:  Jeremy Goodman (Peyton 129)

• 5:00 p.m.: Yan Liang (Peyton 127)

Wednesday (January 31, 2024):

• 9:30 a.m.: 

• 10:00 a.m:  Rob Tejada (Peyton 006)

• 10:30 a.m.: 

• 11:00 a.m.: Adam Burrows -- group meeting  (Grand Central)

• 11:30 a.m.: Adam Burrows -- group meeting  (Grand Central)

• 12:00 p.m.: Lunch / Wunch

• 12:30 p.m.: Lunch / Wunch

• 2:00 p.m.: 

• 2:30 p.m.: 

• 3:00 p.m.: 

• 3:30 p.m.: 

Dinner Sign-up - add your name here:

Tuesday (30 Jan. 2024)

1. Faculty Host: Adam Burrows

2. Postdoc Host: Akash Gupta

3. Miguel Montalvo

4. Josh Winn

5. Robert Vanderbei

6.  Gaspar Bakos

7.  Rob Tejada

8.  Amir Siraj

9. Speaker 

STUDENTS HAVE PRIORITY.

PLEASE NO MORE THAN 8 PEOPLE (it is more difficult to properly interact with the speaker in larger groups).