Protostellar Interferometric Line Survey Archives

Equilibrium structure of cis and trans HNCHO calculated at the ωB97X-D/cc-pVQZ level of theory. Geometrical parameters (bond lengths in angstroms and angles in degrees) and principal axes of inertia are reported. The figure was generated using the PMIFST software from the PROSPE collection of programs developed by Kisiel (2001). -- astro-ph.GA

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Biosignatures & Paleobiology, Imaging & Spectroscopy, Status Report

Unveiling Gas Phase H2NCO Radical: Laboratory Rotational Spectroscopy and Interstellar Search Toward IRAS 16293-2422

by Keith CowingJune 11, 2024June 11, 2024

Context. The carbamoyl radical (H2NCO) is believed to play a central role in the ice-grain chemistry of crucial interstellar complex organic molecules as formamide and acetamide. Yet, little is known […]

Undetected lines of 3-hydroxypropenal that are predicted above 3σ with the new spectroscopic data and the parameters previously constrained by Coutens et al. (2022) for an excitation temperature Tex = 300 K. The PILS observations are in black. The model in red has been obtained with the best-fit parameters derived by Coutens et al. (2022) for Tex = 300 K, i.e. with a column density N = 1.8 × 1015 cm−2 . For comparison, the model obtained for Tex = 125 K (N = 1.0 × 1015 cm−2 ) is added in magenta. The cyan dotted line represents the 3 rms level per 0.33 km s−1 (1/3 of the line width). -- astro-ph.GA

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Status Report

The Rotation-tunneling Spectrum Of 3-hydroxypropenal And Confirmation Of Its Detection Toward IRAS 16293−2422 B

by Keith CowingMay 3, 2024May 3, 2024

3-Hydroxypropenal (HOCHCHCHO) is the lower energy tautomer of malonaldehyde which displays a complex rotation-tunneling spectrum.

Protostellar Interferometric Line Survey

Unveiling Gas Phase H2NCO Radical: Laboratory Rotational Spectroscopy and Interstellar Search Toward IRAS 16293-2422

The Rotation-tunneling Spectrum Of 3-hydroxypropenal And Confirmation Of Its Detection Toward IRAS 16293−2422 B

Why Europa’s Hidden Ocean May Be More Difficult To Reach Than Scientists Thought

Pinpointing Where Cells First Begin Copying DNA

Experimental Measurements of Benzene Ice Critical Saturation Ratios on Titan Tholins and Impact on the Microphysical Modeling of Titan’s South Polar Benzene Cloud

From Mars to Minas: Research Reclassifies Organisms That Thrive In Highly Saline Environments

Could Alien Signals Be Hiding On A Different Radio Channel?