Giant planets and brown dwarfs play a crucial role in star and planet formation, as they are situated at the boundary between planets and stars with uncertain formation mechanisms.
Stellar Cartography
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release, Stellar Cartography
Stellar Cartography: Rubin Observatory Launches Real-time Monitoring Of The Sky With Thousands Of Alerts
On Feb. 24, astronomers’ computers around the world lit up with a deluge of cosmic notifications — 800,000 alerts about new asteroids in our solar system, exploding stars across the […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
TEPCat: The Transiting Extrasolar Planet Catalogue
Transiting extrasolar planets are extraordinarily valuable for understanding the characteristics and formation of planets, because they are the only exoplanets whose physical and orbital properties can be measured to high […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Stellar Cartography
Efficient Reduction Of Stellar Contamination And Noise In Planetary Transmission Spectra Using Neural Networks
Context: JWST has enabled transmission spectroscopy at unprecedented precision, but stellar heterogeneities (spots and faculae) remain a dominant contamination source that can bias atmospheric retrievals if uncorrected.
Posted inExoplanets, -moons, -comets, Status Report, Stellar Cartography
The Orbital Eccentricity–Radius Distribution for Warm, Single Planets in TESS
We characterize the radius-dependent eccentricity distribution of 347 warm (P = 8-200 days) systems with only one transiting planetary candidate identified during Sectors 1-69 of the TESS mission.
Posted inExoplanets, -moons, -comets, Gas Giants, Press Release, Stellar Cartography
Study Reveals A Planetary System With An Unexpected Rocky Planet In Its Outer Region
An international scientific team, led by the University of Warwick and involving the Canary Islands Institute of Astrophysics, has used the European Space Agency’s Cheops satellite to discover that the […]
Posted inExoplanets, -moons, -comets, Gas Giants, Habitable Zones, Ice Giant, Icy Worlds, Status Report, Stellar Cartography
TESS Planets In Known Radial Velocity Cold Jupiter Systems: Hot Super Earth Occurrence Is Enhanced By Cold Jupiters
The correlation between inner super-Earths (SEs) and outer cold Jupiters (CJs) provides an important constraint on the formation and dynamical evolution of planetary systems. Previous studies have suggested a positive […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gas Giants, Ice Giant, Press Release, Stellar Cartography
Cheops Discovers Late Bloomer Planet From Another Era
Many Vile Earthlings Munch Jam Sandwiches Under Newspapers and My Very Educated Mother Just Served Us Nachos. What sounds like gibberish half-sentences are memory aids taught to children to help […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Stellar Cartography
Cold And Eccentric: A High-spectral Resolution View Of 51 Eri b With VLT/HiRISE
Discovered almost 10 years ago, the giant planet 51 Eridani b is one of the least separated (0.2 arcsec) and faintest (J = 19.74 mag) directly imaged exoplanets known to […]
Posted inAlpha Centauri, Astronomy & Telescopes, Status Report, Stellar Cartography
A Mapping Method Of Age Estimation For Binary Stars: Application To The Alpha Centauri System A And B
Given the wealth of data provided by Gaia and the upcoming PLATO mission, it is essential to improve stellar models to obtain accurate stellar ages. Our objective is to apply […]