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Observations of Orion Source I Disk and Outflow Interface
Melvyn Wright, Richard Plambeck, Tomoya Hirota +4
We imaged the continuum and molecular line emission from Orion Source I (SrcI) with up to 30 mas (12 AU) resolution at 43, 99, 223, and 340 GHz in an attempt to probe the structure…
The Sub-millimeter Rotational Spectrum of Ethylene Glycol up to 890 GHz and Application to ALMA Band 10 Spectral Line Data of NGC 6334I
Mattia Melosso, Luca Dore, Filippo Tamassia +3
The rotational spectrum of the most stable conformer of ethylene glycol (HO(CH)OH) has been recorded between 360-890 GHz using a frequency-modulation sub-millimeter spectro…
Searches for Interstellar HCCSH and HCCS
Brett A. McGuire, Christopher N. Shingledecker, Eric R. Willis +14
A long standing problem in astrochemistry is the inability of many current models to account for missing sulfur content. Many relatively simple species that may be good candidates…
Interstellar Glycolaldehyde, Methyl Formate, and Acetic Acid I: A Bi-modal Abundance Pattern in Star Forming Regions
Samer J. El-Abd, Crystal L. Brogan, Todd R. Hunter +3
The relative column densities of the structural isomers methyl formate, glycolaldehyde, and acetic acid are derived for a dozen positions towards the massive star-forming regions M…
ALMA Detection of Vibrationally Excited () Acetic Acid toward NGC 6334I
Ci Xue, Anthony J. Remijan, Crystal L. Brogan +3
Vibrationally excited states of detected interstellar molecules have been shown to account for a large portion of unidentified spectral lines in observed interstellar spectra towar…
Sub-arcsecond (sub)millimeter imaging of the massive protocluster G358.93-0.03: Discovery of 14 new methanol maser lines associated with a hot core
C. L. Brogan, T. R. Hunter, A. P. M. Towner +25
We present (sub)millimeter imaging at 0.5'' resolution of the massive star-forming region G358.93-0.03 acquired in multiple epochs at 2 and 3 months following the recent flaring of…
Modeling C-Shock Chemistry in Isolated Molecular Outflows
Andrew M. Burkhardt, Christopher N. Shingledecker, Romane Le Gal +3
Shocks are a crucial probe for understanding the ongoing chemistry within ices on interstellar dust grains where many complex organic molecules (COMs) are believed to be formed. Ho…
Orion Source I's disk is salty
Adam Ginsburg, Brett McGuire, Richard Plambeck +3
We report the detection of NaCl, KCl, and their Cl and K isotopologues toward the disk around Orion SrcI. About 60 transitions of these molecules were identified. Thi…