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Survey of Ices toward Massive Young Stellar Objects: I. OCS, CO, OCN, and CHOH
A. C. A. Boogert, K. Brewer, A. Brittain +1
An important tracer of the origin and evolution of cometary ices is the comparison with ices found in dense clouds and towards Young Stellar Objects (YSOs). We present a survey of…
The kinematics and excitation of infrared water vapor emission from planet-forming disks: results from spectrally-resolved surveys and guidelines for JWST spectra
Andrea Banzatti, Klaus M. Pontoppidan, José Pérez Chávez +19
This work presents ground-based spectrally-resolved water emission at R = 30000-100000 over infrared wavelengths covered by JWST (2.9-12.8 m). Two new surveys with iSHELL and VI…
Ice Age : Chemo-dynamical modeling of Cha-MMS1 to predict new solid-phase species for detection with JWST
Mihwa Jin, Ka Ho Lam, Melissa K. McClure +6
Chemical models and experiments indicate that interstellar dust grains and their ice mantles play an important role in the production of complex organic molecules (COMs). To date,…
High-Resolution M-band Spectroscopy of CO towards the Massive Young Stellar Binary W3 IRS5
Jialu Li, Adwin Boogert, Andrew G. Barr +1
We present in this paper the results of high spectral resolution (=88,100) spectroscopy at 4.7 m with iSHELL/IRTF of hot molecular gas close to the massive binary protostar W…
Ammonia, carbon dioxide and the non-detection of the 2152 cm CO band
Jiao He, Giulia Perotti, Shahnewaz M. Emtiaz +4
CO is one of the most abundant ice components on interstellar dust grains. When it is mixed with amorphous solid water (ASW) or located on its surface, an absorption band of CO at…
Scanning disk rings and winds in CO at 0.01-10 au: a high-resolution -band spectroscopy survey with IRTF-iSHELL
Andrea Banzatti, Kirsten M. Abernathy, Sean Brittain +11
We present an overview and first results from a -band spectroscopic survey of planet-forming disks performed with iSHELL on IRTF, using two slits that provide resolving power R…