We present a major update to the open-source atmospheric modeling package PICASO, designed for simulating the thermal structure and spectra of hydrogen-rich atmospheres of brown dwarfs and exoplanets.
brown dwarf
Posted inAtmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Brown Dwarfs, Exoplanets, -moons, -comets, Gas Giants, Habitable Zones, Imaging & Spectroscopy, Press Release
Tempawral: A Time-Resolved Retrieval Framework for Variable Brown Dwarfs and Exoplanets
Brown dwarfs and exoplanets are thought to host complex atmospheric phenomena such as clouds, storms, and chemical heterogeneity, akin to weather patterns on Earth. These features can produce pronounced spectral […]
![[LEFT:] A Rare Brown Dwarf: HIP 71618 B [RIGHT:] A New Giant Planet: HIP 54515 b -- W. M. Keck Observatory and the Subaru Telescope.](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/12/Discoveries-From-Maunakea-Reveal-1.png?resize=1200%2C720&ssl=1)
Posted inAstronomy & Telescopes, Brown Dwarfs, Exoplanets, -moons, -comets, Gas Giants, Press Release, Stellar Cartography
Discoveries From Maunakea Reveal Hidden Worlds Around Accelerating Stars
Astronomers using W. M. Keck Observatory and the Subaru Telescope on Maunakea, Hawaiʻi Island have discovered a massive planet and a brown dwarf orbiting distant stars—two rare companions that deepen […]
Posted inAI - Data - Apps - Cybernetics, Astronomy & Telescopes, Brown Dwarfs, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Press Release
First Results From The Subaru Telescope’s OASIS Survey: Direct Imaging Of New Worlds Around Unexplored Stars
The discovery of two remarkable substellar companions orbiting distant stars has been announced by an international team of astronomers using the Subaru Telescope’s sharp adaptive-optics imaging together with precision stellar […]
Posted inAstronomy & Telescopes, Brown Dwarfs, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Status Report
Sensitivity to Sub-Io-sized Exosatellite Transits In The MIRI LRS Lightcurve Of The Nearest Substellar Worlds
JWST’s unprecedented sensitivity enables precise spectrophotometric monitoring of substellar worlds, revealing atmospheric variability driven by mechanisms operating across different pressure levels.
Posted inAstrochemistry, Atmospheres, Climate, Weather, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Brown Dwarfs, Imaging & Spectroscopy, Press Release, Venus
Detection of Phosphine In A Brown Dwarf Atmosphere Raises More Questions
Phosphorus is one of six key elements necessary for life on Earth. When combined with hydrogen, phosphorus forms the molecule phosphine (PH3), an explosive, highly toxic gas. Found in the […]
Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Brown Dwarfs, Gas Giants, Imaging & Spectroscopy, Status Report
MINDS. Cha Ha 1, A Brown Dwarf With A hydrocarbon-rich Disk
Context. Recent JWST observations have shown that brown dwarfs (BD) are chemically rich, offering valuable insights into giant planet formation.
Posted inAstrogeology, Atmospheres, Climate, Weather, Brown Dwarfs, Exoplanets, -moons, -comets, Gas Giants, Ice Giant, Nomenclature, Systematics, Natural History, Status Report
(Re)-Defining Planets — the Fundamental Plane of Planets
6000+ exoplanets are now detected using various techniques, with estimates of billions of planets existing in our Galaxy alone.
Posted inAstronomy & Telescopes, Brown Dwarfs, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Interstellar, Status Report
Multiplicity Of Young Isolated Planetary Mass Objects In Taurus And Upper Scorpius
Free-floating planetary mass objects-worlds that roam interstellar space untethered to a parent star-challenge conventional notions of planetary formation and migration, but also of star and brown dwarf formation.
Posted inAstronomy & Telescopes, Brown Dwarfs, Exoplanets, -moons, -comets, Gas Giants, Icy Worlds, Press Release
Frigid Exoplanet 14 Herculis c Is In A Strange Orbit
A planetary system described as abnormal, chaotic, and strange by researchers has come into clearer view with NASA’s James Webb Space Telescope. Using Webb’s NIRCam (Near-Infrared Camera), researchers have successfully […]