protostellar Archives

Column density of the various molecules from the ALMA Band 7 observations (PILS; ∼345 GHz) as a function of those from Band 3 (∼100 GHz). Beam dilution is corrected for the column densities in this figure. Dashed lines present where the values of y-axis are the same as values of x-axis, where they are 10 times higher and 10 times lower than the values of x-axis. -- astro-ph.GA

Astrochemistry, Astrogeology, Biochemistry & Organic Chemistry, Imaging & Spectroscopy, Interstellar, Status Report

A Deep Search For Large Complex Organic Species Toward IRAS16293-2422 B At 3 mm With ALMA

by Keith CowingJanuary 12, 2024January 12, 2024

Complex organic molecules (COMs) have been detected ubiquitously in protostellar systems. However, at shorter wavelengths (~0.8mm) it is more difficult to detect larger molecules than at longer wavelengths (~3mm) because […]

AFGL 2591 integrated intensity R TAdv (K km s−1 ) maps of rotational transition lines spanning a range of energy levels. The upper state energy level is indicated in the top right-hand corner and the beam size in the bottom left-hand corner. The source VLA 3 is noted by a white or black ‘x’. CH3CCH, in the first column, c-C3H2, in the second, H2CO, in the third, have contour levels of 10, 20, 30, and 40 times the noise level of the respective frequency range. CH3OH, in the fourth column, has contour levels of 10, 20, 40, 80, and 120 times the noise level of the respective frequency range. -- astro-ph.SR

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

Parsec Scales Of Carbon Chain And Complex Organic Molecules In AFGL 2591 And IRAS 20126

by Keith CowingAugust 21, 2023August 21, 2023

(Abridged) There is a diverse chemical inventory in protostellar regions leading to the classification of extreme types of systems. Warm carbon chain chemistry sources, for one, are the warm and […]

protostellar

A Deep Search For Large Complex Organic Species Toward IRAS16293-2422 B At 3 mm With ALMA

Parsec Scales Of Carbon Chain And Complex Organic Molecules In AFGL 2591 And IRAS 20126

Tricorder Tech: New Handheld Device Maps Chemical Composition Using Infrared Light

No Statistically Significant Evidence For A Correlation Between Stellar And planetary Composition

Water Planet Recon: How Accurately Can We Measure Earth Ocean’s Deepest Point?

Webb Reveals A Stunning Panorama Of Star Formation

Deep Learning of SHERLOC Raman Spectra For Facilitating Mars Astromaterial Identification