Complete, accurate, and precise catalogues of exoplanet host star (EHS) properties are essential to deriving high-quality exoplanet parameters. This paper aims at homogeneously parameterising EHS and their exoplanets, using Gaia […]
Gaia mission
![[TOP] (RGB)-color images of TOI 5389, TOI 5628, CTOI 29106627, and CTOI 333792947 with their white dwarf companions composed of y-, i- and g-band Pan-STARRS images. The image of CTOI 320261550 and its white dwarf companion is made of i-, r-, and g-band images taken in the SkyMapper Southern Sky Survey. [BOTTOM] (RGB)-color images of the binary systems TOI 5233 AB, TOI 5392 AB, TOI 5397 AB, and CTOI 388076422 BA, composed of R-, V-, and B-band images, taken with the CTK-II at the University Observatory Jena. -- astro-ph.SR](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/05/Gaia-Search-For-Stellar-Companions-Of-1.png?resize=1200%2C703&ssl=1)
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Gaia Search For Stellar Companions Of TESS Objects Of Interest V
In this paper we present the latest results of our ongoing multiplicity survey of (Community) TESS Objects of Interest, using astrometry and photometry from the latest data release of the […]
Posted inAstronomy & Telescopes, Habitable Zones, Imaging & Spectroscopy, Space Weather & Heliophysics, Status Report, Stellar Cartography
A Homogeneous Catalog of Oscillating Solar-Type Stars Observed by the Kepler Mission and a New Amplitude Scaling Relation Including Chromospheric Activity
We present a homogeneous catalog of global asteroseismic parameters and derived stellar parameters for 765 Kepler main-sequence and subgiant stars.
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biogeochemical Cycles & Geobiology, Comets and Asteroids, Icy Worlds, Imaging & Spectroscopy, Status Report
Near-infrared Spectroscopic Characterization Of The Pallas Family
The Pallas collisional family of asteroids, named after (2) Pallas, is notable for its high orbital inclination and the distinct blue color of Pallas and a few larger B-type family […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Stellar Cartography
The Case for Edge-On Binaries: An Avenue Toward Comparative Exoplanet Demographics
Most Sun-like and higher-mass stars reside in systems that include one or more gravitationally bound stellar companions. These systems offer an important probe of planet formation in the most common […]
Posted inAstronomy & Telescopes, Imaging & Spectroscopy, Interstellar, Press Release
The Galactic Journey Of Our Solar System
An international research team led by the University of Vienna has discovered that the Solar System traversed the Orion star-forming complex, a component of the Radcliffe Wave galactic structure, approximately […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gaia Mission, Imaging & Spectroscopy, Press Release
High-precision NEID Spectrograph Helps Confirm First Gaia Astrometric Planet Discovery
NEID (rhymes with fluid) is a high-precision radial-velocity spectrograph that is designed to measure the extremely minute wobble of nearby stars using the radial velocity effect. This effect results from […]
Posted inAstronomy & Telescopes, Brown Dwarfs, Exoplanets, -moons, -comets, Gaia Mission, Imaging & Spectroscopy, Press Release, Stellar Cartography
Wobbling Stars Reveal Hidden Companions In Gaia Data
New research, published today, uses data collected by ESA’s Gaia spacecraft to confirm the existence of two mysterious celestial objects. Gaia-4b is a ‘Super-Jupiter’ exoplanet, and Gaia-5b a brown dwarf. […]
Posted inAstrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Gas Giants, Press Release
Not All Hot Jupiters Orbit Solo
Hot Jupiters are giant planets initially known to orbit alone close to their star. During their migration towards their star, these planets were thought to accrete or eject any other […]
Posted inExoplanets, -moons, -comets, Gas Giants, Icy Worlds, Press Release
Discovery of Two Planets Sheds New Light On The Formation Of Planetary Systems
The discovery of two new planets beyond our solar system by a team of astronomers from The University of Warwick and the University of Geneva (UNIGE), is challenging scientific understanding […]