activity
20152025
most citedDirect Frequency Comb Measurement of OD + CO -> DOCO Kinetics

153 citations · 944 across the 25 of their papers we have counts for

collaborators
Showing astro-ph.GAShow all

11 papers · 1 filter

astro-ph.GA2025

The Molecular Inventory of TMC-1 with GOTHAM Observations

Ci Xue, Alex N. Byrne, Larry Morgan +14

Spectral line surveys of the Taurus Molecular Cloud-1 (TMC-1) have led to the detection of more than 100 new molecular species, making it the most prolific source of interstellar m…

astro-ph.GA2025★ 90 cited

Discovery of the 7-ring PAH Cyanocoronene (CHCN) in GOTHAM Observations of TMC-1

Gabi Wenzel, Siyuan Gong, Ci Xue +18

We present the synthesis and laboratory rotational spectroscopy of the 7-ring polycyclic aromatic hydrocarbon (PAH) cyanocoronene (CHCN) using a laser-ablation assist…

astro-ph.GA2025

The Missing Link of Sulfur Chemistry in TMC-1: The Detection of c-C3H2S from the GOTHAM Survey

Anthony J. Remijan, P. Bryan Changala, Ci Xue +13

We present the spectroscopic characterization of cyclopropenethione (c-C3H2S) in the laboratory and detect it in space using the Green Bank Telescope (GBT) Observations of TMC-1: H…

astro-ph.GA2024

Detections of interstellar 2-cyanopyrene and 4-cyanopyrene in TMC-1

Gabi Wenzel, Thomas H. Speak, P. Bryan Changala +19

Polycyclic aromatic hydrocarbons (PAHs) are among the most ubiquitous compounds in the universe, accounting for up to ~25% of all interstellar carbon. Since most unsubstituted PAHs…

astro-ph.GA2024

Discovery of interstellar 1-cyanopyrene: a four-ring polycyclic aromatic hydrocarbon in TMC-1

Gabi Wenzel, Ilsa R. Cooke, P. Bryan Changala +22

Polycyclic aromatic hydrocarbons (PAHs) are expected to be the most abundant class of organic molecules in space. Their interstellar lifecycle is not well understood, and progress…

astro-ph.GA2023★ 29 cited

Detection of Interstellar -1-cyano-1,3-butadiene in GOTHAM Observations of TMC-1

Ilsa R. Cooke, Ci Xue, P. Bryan Changala +12

We report the detection of the lowest energy conformer of -1-cyano-1,3-butadiene (-1-CHCN), a linear isomer of pyridine, using the fourth data reduction of the GOTHAM…

astro-ph.GA2023★ 44 cited

Astronomical Detection of the Interstellar Anion C10H- towards TMC-1 from the GOTHAM Large Program on the GBT

Anthony Remijan, Haley N. Scolati, Andrew M. Burkhardt +13

Using data from the GOTHAM (GBT Observations of TMC-1: Hunting for Aromatic Molecules) survey, we report the first astronomical detection of the C10H- anion. The astronomical obser…

astro-ph.GA2022★ 59 cited

A Search for Heterocycles in GOTHAM Observations of TMC-1

Timothy J. Barnum, Mark A. Siebert, Kin Long Kelvin Lee +9

We have conducted an extensive search for nitrogen-, oxygen- and sulfur-bearing heterocycles toward Taurus Molecular Cloud 1 (TMC-1) using the deep, broadband centimeter-wavelength…

astro-ph.GA2021★ 7 cited

Anomalous intensities in the infrared emission of CH explained by quantum nuclear motion and electric dipole calculations

P. Bryan Changala, David A. Neufeld, Benjamin Godard

The unusual infrared emission patterns of CH, recently detected in the planetary nebula NGC 7027, are examined theoretically with high-accuracy rovibrational wavefunctions and…

astro-ph.GA2021★ 66 cited

Interstellar Detection of 2-Cyanocyclopentadiene, CHCN, a Second Five-Membered Ring Toward TMC-1

Kin Long Kelvin Lee, P. Bryan Changala, Ryan A. Loomis +6

Using radio observations with the Green Bank Telescope, evidence has now been found for a second five-membered ring in the dense cloud Taurus Molecular Cloud-1 (TMC-1). Based on ad…

astro-ph.GA2015★ 99 cited

Discovery of SiCSi in IRC+10216: A missing link between gas and dust carriers of SiC bonds

J. Cernicharo, M. C. McCarthy, C. A. Gottlieb +13

We report the discovery in space of a disilicon species, SiCSi, from observations between 80 and 350 GHz with the IRAM 30m radio telescope. Owing to the close coordination between…