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Molecular Distributions and Abundances in the Binary-Shaped Outflow of V Hya
Mark A. Siebert, Raghvendra Sahai, Samantha Scibelli +1
Binaries are known to play a key role in the mass loss and dynamical environments of evolved stars. Stellar and sub-stellar companion interactions produce complex wind morphologies…
Clues to PPN Chemical Evolution: The Unique Molecular Environment of V510 Pup
Mark A. Siebert, Anthony J. Remijan
V510 Pup (IRAS 08005-2356) is a binary post-AGB system with a fast molecular outflow that has been noted for its puzzling mixture of carbon- and oxygen-rich features in the optical…
Investigating Anomalous Photochemistry in the Inner Wind of IRC+10216 Through Interferometric Observations of HCN
Mark A. Siebert, Marie Van de Sande, Thomas J. Millar +1
In recent years, many questions have arisen regarding the chemistry of photochemical products in the carbon-rich winds of evolved stars. To address them, it is imperative to constr…
The family of amide molecules toward NGC 6334I
Niels F. W. Ligterink, Samer J. El-Abd, Crystal L. Brogan +4
Amide molecules produced in space could play a key role in the formation of biomolecules on a young planetary object. However, the formation and chemical network of amide molecules…
A Search for Light Hydrides in the Envelopes of Evolved Stars
Mark A. Siebert, Ignacio Simon, Christopher N. Shingledecker +7
We report a search for the diatomic hydrides SiH, PH, and FeH along the line of sight toward the chemically rich circumstellar envelopes of IRC+10216 and VY Canis Majoris. These mo…
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…