Editor’s note: many of the tools that are used in astronomy to conduct analyses of chemistry in space – astrochemistry – utilize technology that has had long-standing applications in a […]
Interstellar
Posted inSETI & Technosignatures
Narrowband Radio Technosignature Search Toward 3I/ATLAS with FAST
[astro-ph.IM] 3I/ATLAS is the third confirmed interstellar object passing through the Solar System.
Posted inComets and Asteroids
The Dust Mineralogy of Interstellar Comet 3I/ATLAS from JWST/MIRI Observations
[astro-ph.EP] We present the first spectroscopic mineralogical analysis of the dust coma of an interstellar object (ISO) from JWST mid-infrared spectroscopy of 3I/ATLAS (3I).
Posted inAstrochemistry
Charge Transfer From Ammonia Neutralizes Propylene Oxide Cations: Implications For The Astrochemistry Of Chiral Molecules
[astro-ph.GA] To date only one chiral species, propylene oxide, has been observed in the interstellar medium but little is known about the chemistry that leads to a detectable abundance of […]
Posted inExoplanets, -moons, -comets
Free Floating Exoplanets or Merely Detached?
[Astrophysical Journal] Microlensing surveys suggest the presence of a surprisingly large population of free-floating planets, with a rate of about two Neptunes per star.
Posted inInterstellar
New Horizons Extends Key Observations Of Interstellar Material Slowing The Solar Wind
[SwRI] A new Southwest Research Institute (SwRI) study based on data from NASA’s New Horizons spacecraft has uncovered fascinating insights into why the solar wind gradually slows as it moves […]
Posted inAstrochemistry
Theoretical and Experimental IR Spectra of Astronomical PAHs and PANHs in the 2000–1650 cm–1 Range (∼5–6 μm)
[ACS Earth and Space Chemistry] Recent James Webb Space Telescope observations reveal unprecedented details in the 2000–1650 cm–1 (∼5–6 μm) region, including the well-known 5.25 and 5.75 μm bands.
Posted inAstrochemistry
Theoretical Determination Of The Binding Energies Of Methanol And Related Species Onto Amorphous Solid Water Ice
[astro-ph.GA] The formation and survival of complex organic molecules (COMs) in cold interstellar environments depends on their interactions with icy dust grain surfaces.
Posted inAstrochemistry
Probing Outflow Physics Through CH3CN And CH3OH Chemistry
[astro-ph.GA] Chemical correlations between molecules provide powerful diagnostics to probe the physical conditions of protostellar outflows. In particular, the relationship between methanol (CH3OH) and methyl cyanide (CH3CN) offers a promising […]
Posted inAstrochemistry
The Line Emission Terahertz Observatory (LETO): Exploring The Lifecycle Of The ISM And The Origins Of Water
[astro-ph.IM] The Interstellar Medium (ISM) is the reservoir of baryonic matter from which stars and planetary systems are formed. It is also the repository of the material that is expelled […]