Detection of the Polycyclic Aromatic Hydrocarbon Phenalene (C 13 H 10) in the Very Low Luminosity Object (VeLLO) MC27/L1521F

arXiv:2607.08699 · astro-ph.GA, astro-ph.SR, physics.chem-ph, physics.space-ph · Submitted 2026-07-09 · Read on arXiv

Gabi Wenzel, Thomas H. Speak, Ci Xue, Edwin A. Bergin, Andrew M. Burkhardt, Martin A. Cordiner, Miya Duffy, Zachary T. P. Fried, Andrew Lipnicky, Christopher N. Shingledecker, Reace H. J. Willis, Anthony J. Remijan, Michael C. McCarthy, Brett A. McGuire, Ilsa R. Cooke

astro-ph.GA, astro-ph.SR, physics.chem-ph, physics.space-ph

Submitted: 2026-07-09

Comments: Accepted for publication in The Astrophysical Journal Letters

Code: https://github.com/cixue/gotham-spectral-pipeline

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

Terminology

• Abundance — 27× in this paper · explained in 1 episode
• Core — 13× in this paper · explained in 2 episodes
• Polycyclic aromatic hydrocarbons (PAHs) — 3× in this paper · explained in 2 episodes
• Benchmark — 2× in this paper · explained in 2 episodes
• Cyanopolyyne Peak — 2× in this paper
• Abstraction — 1× in this paper · explained in 1 episode
• Accuracy — 1× in this paper · explained in 1 episode
• Byrd Green Bank Telescope — 1× in this paper
• Calibration — 1× in this paper · explained in 7 episodes
• Density Functional Theory (DFT) — 1× in this paper · explained in 2 episodes
• Using the Markov Chain Monte Carlo — 1× in this paper

Sources

• Aromatic rings in the Central Molecular Zone: Benzonitrile
• Tracing the sulfur depletion in starless and pre-stellar cores
• The impact of hydrogen atom tunneling on aromatic chemistry in TMC-1

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