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Astrochemistry: November 2021


An international team of scientists may have solved a key mystery about the origins of the Earth's water, after uncovering persuasive new evidence pointing to an unlikely culprit -- the Sun.

Biologically relevant abiotic extraterrestrial soluble organic matter (SOM) has been widely investigated to study the origin of life and the chemical evolution of protoplanetary disks. Synthesis of biologically relevant organics, in particular, seems to require aqueous environments in the early solar system.

We studied theoretically the cis-trans isomerization reactions of two astrophysically relevant acids, formic acid (HCOOH) and thioformic acid (HC(O)SH), where the latter has recently been discovered in space.

Simple and complex organic molecules (COMs) are observed along different phases of star and planet formation and have been successfully identified in prestellar environments such as dark and translucent clouds.

Chemistry along the star- and planet-formation sequence regulates how prebiotic building blocks -- carriers of the elements CHNOPS -- are incorporated into nascent planetesimals and planets.

Infrared Dark Clouds (IRDCs) are cold, dense regions of the interstellar medium that are likely to represent the initial conditions for massive star and star cluster this is thus important to study the physical and chemical conditions of IRDCs to provide constraints and inputs for theoretical models of these processes.

Using new large area maps of the cold neutral medium (CNM) fraction, fCNM, we investigate the relationship between the CNM, the abundance of polycyclic aromatic hydrocarbons (PAHs), and the anomalous microwave emission (AME).

Scientists studying SPT0311-58 found H20, along with carbon monoxide in the galaxy, which is located nearly 12.88 billion light years from Earth.

The chemical abundances of planet-hosting stars offer a glimpse into the composition of planet-forming environments.