We use passive gas tracer particles in an Arepo simulation of a dwarf spiral galaxy to relate the Lagrangian evolution of star-forming gas parcels and their H2 molecules to the […]
astronomy
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Tidal Distortions As A Bottleneck On Constraining Exoplanet Compositions
Improvements in the number of confirmed planets and the precision of observations imply a need to better understand subtle effects that may bias interpretations of exoplanet observations.
Posted inAstrochemistry, Astronomy & Telescopes, Imaging & Spectroscopy, Press Release
SwRI-Contributed Study Provides Darkest View Ever Of Interstellar Ices
An international team including Southwest Research Institute, Leiden University and NASA used observations from the James Webb Space Telescope (JWST) to achieve the darkest ever view of a dense interstellar […]
Posted inAstronomy & Telescopes, Beta Pictoris, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Has The Dust Clump In The Debris Disk of Beta Pictoris Moved?
The edge-on debris disk of the nearby young star Beta Pictoris shows an unusual brightness asymmetry in the form of a clump.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Characterization Of A Set Of Small Planets With TESS And CHEOPS And An Analysis Of Photometric Performance
The radius valley carries implications for how the atmospheres of small planets form and evolve, but this feature is only visible with highly-precise characterizations of many small planets.
Posted inAstronomy & Telescopes, SETI & Technosignatures, Societal Issues, Status Report
Inferring The Rate Of Technosignatures From Sixty Years Of Nondetection
For about the last 60 years the search for extraterrestrial intelligence has been monitoring the sky for evidence of remotely detectable technological life beyond Earth, with no positive results to […]
Posted inAstrochemistry, Astronomy & Telescopes, Imaging & Spectroscopy, Press Release
PHANGS-JWST First Results: Variations in PAH Fraction as a Function of ISM Phase and Metallicity
We present maps tracing the fraction of dust in the form of polycyclic aromatic hydrocarbons (PAHs) in IC 5332, NGC 628, NGC 1365, and NGC 7496 from JWST/MIRI observations.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Press Release, TRAPPIST-1
The Search for Habitable, Earth-Sized Planets around SPECULOOS-2
In a new paper, NASA-supported scientists have predicted that there is an Earth-sized planet in the habitable zone of the star SPECULOOS-2.
Posted inAstrochemistry, Astronomy & Telescopes, Press Release
Taurus And Perseus – New Collisional Rates For HCN, HNC, And Their C, N, And H Isotopologues
HCN, HNC, and their isotopologues are ubiquitous molecules that can serve as chemical thermometers and evolutionary tracers to characterize star-forming regions.
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Genomics, Proteomics, Bioinformatics, Imaging & Spectroscopy, Press Release, TRAPPIST-1
GCM Constraints On The Detectability Of The CO2-CH4 Biosignature Pair On TRAPPIST-1e With JWST
Terrestrial exoplanets such as TRAPPIST-1e will be observed in a new capacity with JWST/NIRSpec, which is expected to be able to detect CO2, CH4, and O2 signals, if present, with […]