2-cyanopyrene Archives

Velocity-stacked spectra and matched filter responses of 2- and 4-cyanopyrene. The stacked GOTHAM observations (black) are overlaid with the simulated stacked spectrum of 2- and 4-cyanopyrene (blue and pink, respectively), each consisting of the 150 brightest SNR lines (left panels). Marginalized posterior parameters were used in both simulations, as reported in Supplementary Table A3. The corresponding impulse response for the matched filtering analysis is shown, yielding a significance of 8.0 σ and 12.9 σ for the 2- and 4-cyanopyrene detections, respectively (right panels). The small features in the stacked simulated spectrum (pink) in the bottom left panel result from the densely populated 4-cyanopyrene lines (see Fig. A3) that add up in the stack. -- astro-ph.GA

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Comets and Asteroids, Imaging & Spectroscopy, Meteorites & Asteroids, Status Report

Detections Of Interstellar 2-cyanopyrene And 4-cyanopyrene In TMC-1

by Keith CowingOctober 4, 2024October 8, 2024

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 do not possess permanent […]

2-cyanopyrene

Detections Of Interstellar 2-cyanopyrene And 4-cyanopyrene In TMC-1

RED26 Astrobiology Lectures Are Now Online

The Refractory Fraction Of Phosphorus In Planet-forming Discs

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Comets May Have Transported Water To A Young Planetary System