4 papers
JWST NIRSpec G395H Transmission Spectra of Two Similar Sub-Neptunes in the TOI-125 System
Yiwei Chai, Néstor Espinoza, Chloe Fisher +10
The James Webb Space Telescope (JWST) has enabled the first in-depth characterisations of sub-Neptune atmospheres, revealing a diversity of chemical compositions and cloud properti…
A JWST MIRI MRS View of the Tel Debris Disk and its Brown Dwarf Companion
Yiwei Chai, Christine H. Chen, Kadin Worthen +12
We report JWST MIRI MRS observations of the Pictoris moving group member, Telescopii ( Tel) A and its brown dwarf binary companion, Tel B. Following PSF subtraction,…
MIRI MRS Observations of Beta Pictoris II. The Spectroscopic Case for a Recent Giant Collision
Christine H. Chen, Cicero X. Lu, Kadin Worthen +17
Modeling observations of the archetypal debris disk around Pic, obtained in 2023 January with the MIRI MRS on board JWST, reveals significant differences compared with that obt…
MIRI MRS Observations of Beta Pictoris I. The Inner Dust, the Planet, and the Gas
Kadin Worthen, Christine H. Chen, David R. Law +15
We present JWST MIRI Medium Resolution Spectrograph (MRS) observations of the Pictoris system. We detect an infrared excess from the central unresolved point source from 5 to 7…