The TOLIMAN project is engaged with the construction, launch and operation of a low-cost space telescope of unorthodox optical design. Its primary science goal targets an exhaustive search for temperate-orbit […]
Astrometry
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gaia Mission, Imaging & Spectroscopy, Proxima Centauri, Status Report, Stellar Cartography
Astrometric Reconnaissance of Exoplanetary Systems (ARES). I. Methodology Validation With HST Point-source Images Of Proxima Centauri
We present the first results of the Astrometric Reconnaissance of Exoplanetary Systems (ARES) project, aimed at validating and characterizing candidate exoplanets around the nearest systems using multi-epoch Hubble Space Telescope […]
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, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Exomoon Search With VLTI/GRAVITY Around The Substellar Companion HD 206893 B
Direct astrometric detection of exomoons remains unexplored. This study presents the first application of high-precision astrometry to search for exomoons around substellar companions.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gaia Mission, Imaging & Spectroscopy, Press Release, Stellar Cartography
On The Exoplanet Yield Of Gaia Astrometry
We re-examine the expected yield of Gaia astrometric planet detections using updated models for giant-planet occurrence, the local stellar population, and Gaia’s demonstrated astrometric precision.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gaia Mission, Habitable Zones, Imaging & Spectroscopy, Status Report, Stellar Cartography
Very High Precision Astrometry for Exoplanets and Dark Matter with the Habitable Worlds Observatory
Astrometry, one of the oldest branches of astronomy, has been revolutionized by missions like Hipparcos and especially Gaia, which mapped billions of stars with extraordinary precision.
Posted inAlpha Centauri, Astronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gas Giants, Habitable Zones, Imaging & Spectroscopy, Status Report, Stellar Cartography
Seeking The Worlds Of Avatar: Prospects for Detecting Moons Orbiting a Giant Planet in Alpha Centauri A’s Habitable Zone
Nearby giant exoplanets offer an opportunity to search for moons (exomoons) orbiting them. Here, we present a simulation framework for investigating the possibilities of detecting exomoons via their astrometric signal […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Press Release
NASA’s Exoplanet Discovery Exceeds 6,000 Worlds
The official number of exoplanets — planets outside our solar system — tracked by NASA has reached 6,000. Confirmed planets are added to the count on a rolling basis by […]
Posted inAway Teams & Field Reports, Budgets and Policy, Imaging & Spectroscopy, Interstellar, Mapping, Geodesy, Cartography, Bathymetry, Missions & Hardware, Policy, Status Report, Stellar Cartography
Stellar Cartography: A Demonstration Of Interstellar Navigation Using New Horizons
Editor’s note: Those of you in the space community know that NASA Science is facing an immense budget cut. Dozens of missions have been cancelled and many missions that are […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report
A High Stellar Multiplicity Rate Amongst TESS Planet Candidates In The Neptunian Desert Using Gaia DR3 Astrometry
We aim to discover whether the stellar multiplicity rate may provide information on the origin of recently discovered planets in the Neptunian Desert.