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. […]
Gaia Mission
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gaia Mission, Imaging & Spectroscopy, Status Report
Planetary Edge Trends (PET). I. The Inner Edge-Stellar Mass Correlation
The position of the innermost planet (i.e., the inner edge) in a planetary system provides important information about the relationship of the entire system to its host star properties, offering […]
Posted inAstrochemistry, Astronomy & Telescopes, Biosignatures & Paleobiology, Brown Dwarfs, Exoplanets, -moons, -comets, Gaia Mission, Icy Worlds, Interstellar, Status Report, Water/Hycean Worlds & Oceanography
Water-Bearing Objects in the Core of the Rho Ophiuchi Cloud Complex
We present a study of very low-mass stars and brown dwarfs in the rich star-forming core of the Rho Ophiuchi cloud complex. The selection of the sample relies on detecting […]
Posted inAstronomy & Telescopes, Beta Pictoris, Exoplanets, -moons, -comets, Gaia Mission, Imaging & Spectroscopy, Status Report, Stellar Cartography
Detection And Characterisation Of Giant Planets With Gaia Astrometry
Astrometric observations with Gaia are expected to play a valuable role in future exoplanet surveys. With current data from Gaia’s third data release (DR3), we are sensitive to periods from […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gaia Mission, Gas Giants, Imaging & Spectroscopy, Interstellar, Status Report, Stellar Cartography
A Candidate High-Velocity Exoplanet System In The Galactic Bulge
We present an analysis of adaptive optics (AO) images from the Keck-I telescope of the microlensing event MOA-2011-BLG-262. The original discovery paper by Bennett et al. 2014 reports two distinct […]
Posted inAI - Data - Apps - Cybernetics, Apps - Games, Astronomy & Telescopes, Exoplanets, -moons, -comets, Gaia Mission, Press Release
Gen TSO: A General JWST Simulator for Exoplanet Times-series Observations
Gen TSO is a noise calculator specifically tailored to simulate James Webb Space Telescope (JWST) time-series observations of exoplanets. Gen TSO enables the estimation of signal-to-noise ratios (S/N) for transit […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gaia Mission, Imaging & Spectroscopy, Missions & Hardware, Status Report, Stellar Cartography
Searching For Substellar Companion Candidates With Gaia. I. Introducing The GaiaPMEX Tool
The Gaia mission is expected to yield the detection of several thousands of exoplanets, perhaps at least doubling the number of known exoplanets. Although the harvest is expected to occur […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gaia Mission, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography
Characterisation of TOI-406 as Showcase of the THIRSTEE program: A 2-Planet System Straddling the M-dwarf Density Gap
The exoplanet sub-Neptune population currently poses a conundrum. Are small-size planets volatile-rich cores without atmosphere, or are they rocky cores surrounded by H-He envelope? To test the different hypotheses from […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gaia Mission, Imaging & Spectroscopy, Status Report
TESS Hunt for Young and Maturing Exoplanets (THYME) X: a two-planet system in the 210 Myr MELANGE-5 Association
Young (<500 Myr) planets are critical to studying how planets form and evolve. Among these young planetary systems, multi-planet configurations are particularly useful as they provide a means to control […]
Posted inAstrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Gaia Mission, Space Weather & Heliophysics, Status Report, Stellar Cartography
The Sun Remains Relatively Refractory Depleted: Elemental Abundances for 17,412 Gaia RVS Solar Analogs and 50 Planet Hosts
The elemental abundances of stars, particularly the refractory elements (e.g., Fe, Si, Mg), play an important role in connecting stars to their planets.