[astro-ph.GA] Astrochemistry is a well-established multidisciplinary field devoted to study molecules in space. While most astrochemists are oriented to observe molecules in the gas phase and reproduce their abundances by […]
Astronomy & Telescopes
![PANEL (A): Diagram of the net tidal accelerations acting on the planetary surface (caused by the host star’s gravity field). The planet is represented with a top view (i.e., as seen from above). Accelerations are computed in the reference frame of the planetary center. PANEL (B): Representation of the tidal bulge. The planet is represented with a top view. Planetary spinning (black arrow) is counterclockwise, as is the orbital motion around the star (red arrow). -- [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/Simulation.png?resize=1200%2C575&ssl=1)
Posted inExoplanets, -moons, -comets
Simulation Of The Spin Evolution Of Some Selected Exoplanets And Inferences On Ttheir Climate
[astro-ph.EP] In this work, using the simulator VPLanet, we analyze the spin evolution of some selected exoplanets due to the tidal interaction with their host star.
Posted inStellar Cartography
Stellar Cartography: SDSS-V Releases Latest All-sky Spectra Including First Optical Spectra From The Southern Hemisphere
[Carnegie Institution for Science] The Sloan Digital Sky Survey V (SDSS-V) has announced its twentieth public data release (DR20), delivering a dramatic expansion of the Milky Way Mapper (MWM) scientific […]
![The mass-radius-period parameter spaces for short-period exoplanets. In (a), the radii and orbital periods of known planets are shown with systems coloured by the stellar effective temperature. The TASSIE II TOIs are highlighted as points with 3σ error bars for their radii. -- [astro-ph.EP]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/The-TASSIE-Program.png?resize=1200%2C719&ssl=1)
Posted inExoplanets, -moons, -comets
The TASSIE Program. II: Three Close-In Companions Orbiting Sun-Like Stars
[astro-ph.EP] We present three southern transiting giant planet candidates alerted by the Transiting Exoplanet Survey Satellite (TESS) mission and investigated at the University of Tasmania Greenhill Observatory (UTGO).
Posted inAstronomy & Telescopes
Astrochemistry In Action: JWST View Of The Carina Nebula
[ESA] This NASA/ESA/CSA James Webb Space Telescope Picture of the Month takes us to a fantastical realm within our home galaxy, where piercing starlight and billowing winds sculpt dust clouds […]
![Herschel H2 column density map (Sadavoy et al. 2012) of Perseus starless and prestellar cores. Labeled in magenta are the locations and names of the 15 starless and prestellar cores analyzed. The star-forming regions within Perseus are denoted in black.-- [astro-ph.GA]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/08/Inventories.png?resize=1200%2C716&ssl=1)
Posted inAstrochemistry
Inventories of Rich Carbon-Chain Chemistry in Prestellar and Starless Cores in the Perseus Molecular Cloud
[astro-ph.GA] Carbon-chain molecules serve as an important reservoir of reactive organic matter that will eventually be incorporated into protoplanetary disks, planets, and cometary material. Prestellar and starless cores are composed […]
Posted inAstrochemistry
Variations in the 3.3 µm Polycyclic Aromatic Hydrocarbon Feature Across Nearby Galaxies Driven by Metallicity and Radiation Field Spectrum
[astro-ph.GA] We use JWST NIRCam imaging to investigate the 3.3 μm polycyclic aromatic hydrocarbon (PAH) feature in nearby galaxies. NIRCam observations of the 3.3 μm feature are emerging as a […]
Posted inExoplanets, -moons, -comets
Exploration Of Exoplanet Atmospheres With The James Webb Space Telescope
[astro-ph.EP] The James Webb Space Telescope (JWST) is providing transformative characterization capabilities for the study of both transiting and directly imaged extrasolar planets. Observations deep into the infrared in the […]
Posted inExoplanets, -moons, -comets
JWST Transmission Spectroscopy Of TOI-3235 b: Challenges In Constraining Giant Planet Atmospheres Around M Dwarfs Amid Stellar Contamination
[astro-ph.EP] Giant planets orbiting low-mass M dwarfs challenge current planet formation theories, which predict that such planets are unlikely to form. Characterizing their atmospheres can provide key insight into their […]
Posted inExoplanets, -moons, -comets
Searching For Habitable Exoplanets With Relative Astrometry (SHERA). I. The Case For Searching For Planets In Binary Star Systems
[astro-ph.EP] Discovering Earth-like planets orbiting Sun-like stars was identified as a priority science goal of the Astronomy 2020 Decadal Survey.