6 papers
CORINOS V: Radiative transfer effects in protostellar ice observations
Will E. Thompson, Jennifer B. Bergner, Neal J. Evans +11
Recent observations of protostars with the James Webb Space Telescope have revealed unprecedented chemical complexity from their ice absorption features. However, these spectra are…
A Chemistry-First Centered Icy Chemical Inventory of Protostellar Sources with JWST
Andrew M. Turner, Yao-Lun Yang, Rachel Gross +2
The chemical evolution in star forming regions is driven by the interplay between gas and ice mantles. Identifying the ice compositions at the early stage of star formation thus pr…
CORINOS IV: Quantifying Baseline-Fitting Uncertainties in SO Ice Measurements with JWST/MIRI
Rachel E. Gross, Yao-Lun Yang, L. Ilsedore Cleeves +15
Sulfur dioxide (SO) ice has been tentatively detected in protostellar envelopes, but its reliability as a solid-state sulfur reservoir remains unclear. We present new measureme…
Investigating the Sulfur Mystery in Protoplanetary Disks Through Chemical Modeling
Becky J. Williams, L. Ilsedore Cleeves, Rachel E. Gross +1
Sulfur is a critical element to life on Earth, and with detections of sulfur-bearing molecules in exoplanets and comets, questions arise as to how sulfur is incorporated into plane…
Water Ice in the Edge-On Orion Silhouette Disk 114--426 from JWST NIRCam Images
Nicholas P. Ballering, L. Ilsedore Cleeves, Ryan D. Boyden +3
We examine images of the protoplanetary disk 114--426 with JWST/NIRCam in 12 bands. This large disk is oriented edge-on with a dark midplane flanked by lobes of scattered light. Th…
Modeling the Impact of Moderate External UV Irradiation on Disk Chemistry
Rachel E. Gross, L. Ilsedore Cleeves
The chemistry within a protoplanetary disk is greatly affected by external radiation from the local stellar environment. Previous work has focused on extreme radiation fields, repr…