High Resolution Mid-Infrared Spectroscopy of Star and Planet Forming Regions with TEXES

Abstract

TEXESisa medium to high resolution mid-infraredspectrograph, used on the NASA IRTF.Wehaveusedittomeasure R≈80,000 spectra of molecular absorption andemission toward several embeddedyoung stars. Here, we concentrate on observationsofC2H2,HCN,SiO,and H2 toward the KL region in Orion,with somediscussion of molecules observed toward NGC7538 IRS1.High spectral, andin some casesspatial, resolution is found to be necessary to detect andtounderstand the observed molecular lines.