Polycyclic aromatic hydrocarbons (PAHs) are key contributors to interstellar aromatic infrared (IR) bands.
astro-ph.IM
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Rapid Characterization Of Exoplanet Atmospheres With The Exoplanet Transmission Spectroscopy Imager (ETSI)
The Exoplanet Transmission Spectroscopy Imager (ETSI) amalgamates a low resolution slitless prism spectrometer with custom multi-band filters to simultaneously image 15 spectral bandpasses between 430 nm and 975 nm with […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Intelligence & Language, Interstellar, SETI & Technosignatures, Status Report
Multibeam SETI Observations Toward Nearby M Dwarfs With FAST
The search for extraterrestrial intelligence (SETI) targeted searches aim to observe specific areas and objects to find possible technosignatures. Many SETI researches have focused on nearby stars and their planets […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Tunable Kernel-Nulling Interferometry For Direct Exoplanet Detection
Nulling interferometry is a promising technique for direct detection of exoplanets. However, the performance of current devices is limited by different perturbations sources and especially by its sensitivity to any […]
Posted inAstronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Icy Worlds, Status Report, Water/Hycean Worlds & Oceanography
Cross-Model Validation of Coronagraphic Exposure Time Calculators for the Habitable Worlds Observatory: A Report from the Exoplanet Science Yield sub-Working Group
Estimating the exoplanet scientific productivity of the Habitable Worlds Observatory requires estimating science exposure times.
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Icy Worlds, Imaging & Spectroscopy, Status Report
Infrared Spectroscopy of Astrophysical Ice Analogs at Oblique Angles
In astrochemical exploration, infrared (IR) spectroscopy is vital for understanding the composition and structure of ice in various space environments.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Cubesats and smallsats, Exoplanets, -moons, -comets, Status Report
The Pandora SmallSat: A Low-Cost, High Impact Mission to Study Exoplanets and Their Host Stars
The Pandora SmallSat is a NASA flight project aimed at studying the atmospheres of exoplanets — planets orbiting stars outside our Solar System. Pandora will provide the first dataset of […]
![Normalised observed spectrum of the star GJ 880 as black dashed line, and best-fit model (synthetic spectrum predicted by the Payne’s ANN for the parameters given in Table 2) as orange solid line. Grey shaded areas indicate the location of the line mask we used. Derived parameters for this star are Teff: 3649 K, log g: 4.8 dex, and [Fe/H]: 0.25 dex -- astro-ph.SR](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/02/Performance-of-the-Stellar-Abundances.png?resize=1200%2C720&ssl=1)
Posted inExoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report, Stellar Cartography
Performance of the Stellar Abundances and Atmospheric Parameters Pipeline Adapted for M Dwarfs I. Atmospheric Parameters from the Spectroscopic Module
M dwarfs are important targets in the search for Earth-like exoplanets due to their small masses and low luminosities. Several ongoing and upcoming space missions are targeting M dwarfs for […]
Posted inSETI & Technosignatures, Status Report
Earth Detecting Earth: At What Distance could Earth’s Constellation of Technosignatures be Detected with Present-day Technology?
The field of the Search for Extraterrestrial Intelligence (SETI) searches for “technosignatures” that could provide the first detection of life beyond Earth through the technology that an extraterrestrial intelligence (ETI) […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Technical Description and Performance of the Phase II Version of the Keck Planet Imager and Characterizer
The Keck Planet Imager and Characterizer (KPIC) is a series of upgrades for the Keck II Adaptive Optics (AO) system and the NIRSPEC spectrograph to enable diffraction limited, high resolution […]