Exploring the Limits of Spectral Line Stacking in Spectral Line Data and Application Toward the Detection of Bulk 13 C Enrichment of Aromatics in TMC-1

arXiv:2607.27382 · astro-ph.GA · Submitted 2026-07-29 · Read on arXiv

Miya Duffy, Ryan A. Loomis, Martin S. Holdren, Andrew Lipnicky, D. Archie Stewart, Gabi Wenzel, Ci Xue, Annapoorani Hariharan, Ilsa R. Cooke, Anthony J. Remijan, Michael C. McCarthy, Brett A. McGuire

astro-ph.GA

Submitted: 2026-07-29

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Abundance — 16× in this paper · explained in 1 episode
• Polycyclic aromatic hydrocarbons (PAHs) — 3× in this paper · explained in 2 episodes
• Accuracy — 2× in this paper · explained in 1 episode
• Green Bank Telescope — 2× in this paper
• Abstraction — 1× in this paper · explained in 1 episode
• Distribution Shift — 1× in this paper · explained in 5 episodes
• Frequency Dependence — 1× in this paper · explained in 2 episodes
• Provenance — 1× in this paper · explained in 4 episodes

Sources

• Low D/H ratio for benzonitrile in TMC-1: Implication for the origin of polycyclic aromatic hydrocarbons in cold dark clouds
• The Molecular Inventory of TMC-1 with GOTHAM Observations

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