Dissecting clouds and atmospheres of the coldest substellar worlds with JWST

Cool Stars 23 splinter session


Project maintained by emrickman

Program

The splinter session will take place on Thursday, June 18th, from 14:00 to 17:30.

Each contributed talk will be 12 min + 3 min for questions, and each poster pop will be a 2 min talk.

Contributed Talks

14:00
Linking Variability and Atmospheric Structure in the Benchmark Brown Dwarf Binary WISE 1049AB
Natalia Oliveros Gomez, Johns Hopkins University

14:15
Interpreting the Coldest Atmospheres: Insights from Sonora Flame Skimmer and H2O/NH3 Cloud Modeling
James Mang, University of Texas at Austin

14:30
To the End of the IMF: JWST/NIRSpec Observations of Free-Floating Jupiter Mass Objects in NGC 2024
Matthew De Furio, University of Texas at Austin

14:45
Solar System Scale super-Jupiters are Metal Rich
William Balmer, Johns Hopkins University

15:00
The Atmospheric, Disk, and Accretion Properties of 6 ““Sextuplet”” Brown Dwarfs in Chamaeleon
Kate Follette, Amherst College

15:15 POSTER POPS (2min each)

A JWST MIRI spectrum of “the Accident” in our Galactic Halo
Sherelyn Alejandro Merchan, CUNY Graduate Center & AMNH

A Systematic Luminosity Error and Needed Changes to Evolutionary Models: The Local Substellar Mass Function with JWST
Samuel Beiler, Trinity College Dublin

Understanding Brown Dwarf Spectral Observations with Microphysical Cloud Modeling using CARMApy
Wolf Cukier, UChicago

A Volume-limited Sample of Companions to Accelerating Stars from Hipparcos and Gaia
Mark Giovinazzi, Amherst College

Direct imaging search of young jovian exoplanets with JWST NIRCam
Julien Girard, STScI

JWST/NIRCam and VLT/SPHERE Orbital Characterization of a Sub-stellar Companion
Rohan Kane, STScI

Measuring and Modeling the Circumplanetary Dust Disk around the Planetary-Mass Companion SR 12 c
Nat Kerman, UMass Amherst

Panchromatic JWST Spectrophotometry of benchmark brown dwarf GJ 758 B
Alex Madurowicz, STScI

15:30 BREAK

Contributed Talks

16:00
The Dyn-Atmo Survey: Substellar Anchors for Evolutionary Models
Emily Rickman, ESA/STScI

16:15
The Polar Expedition: Extracting Time-series Spectra of Vortex-Dominated Polar Regions in Planetary-mass Objects and Brown Dwarfs
Nguyen Fuda, University of Arizona

16:30
Clouds, chemistry, and thermal structure in Y dwarfs using retrievals of G395H spectra
Ben Burningham, University of Hertfordshire

16:45
JWST/NIRISS Observations of an Auroral Brown Dwarf
Eleanor Pike, University of Sheffield

17:00
Silicate Clouds as Drivers of Spectral Diversity in Ultracool Atmospheres
Genaro Suarez, American Museum of Natural History

17:15 POSTER POPS (2min each)

Clouds and Magnetic Spots Drive Variability in Early L dwarfs
Cian O’Toole, Trinity College Dublin

Unexpected debris disks: Detection of circumstellar dust with deep JWST direct imaging observations
Isabel Rebollido, Centro de Astrobiología (CAB-CSIC)

petrafit: Rapid Silicate Cloud Identification in Substellar and Exoplanet Atmospheres
Melanie Rowland, American Museum of Natural History

Probing the Atmospheres of Low Metallicity L type Brown Dwarfs in Euclid DR1
Nafise Sedighi, Instituto de Astrofísica de Canarias

On the magnetodynamics of zonal band formation in substellar atmospheres
Craig Stark, University of Glasgow

Constraining the multiplicity of the coldest brown dwarfs between 0.5 and 1000 au with JWST
Thomas Vandal, Université de Montréal

Weather Report of Variable Brown Dwarf from Time Resolved Retrievals on JWST Time Series Spectroscopy
Fei Wang, University of Hertfordshire

STARSPOP: Uncovering Brown Dwarf Formation Pathways by Understanding the Uncertain
Catalina Zamora, University of Massachusetts Amherst

Can Auroral Heating Power Brown Dwarf Thermal Inversions?
Anna Zuckerman, University of Colorado, Boulder

17:30 End of session