[astro-ph.EP] We present mass constraints of two short-period, terrestrial-sized planets transiting K2-223, based on high-precision radial velocity measurements from HARPS-N and ESPRESSO, as well as a tentative indication of an […]
ESPRESSO
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy
A Decade Of Monitoring The HIP 41378’s Planetary System
Multi-planetary systems provide key constraints on planet formation and evolution, as their architecture encodes the dynamical history of planets formed within a common protoplanetary disk.
Posted inAstrogeology, Astronomy & Telescopes, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
Revisiting The Exo-Mercury Candidate GJ 367 b With ESPRESSO And A Self-Consistent Tidal Distortion Model
We report revised mass and radius measurements for GJ 367 b, an ultra-short-period (7.7 hr) sub-Earth in a multi-planet system orbiting a nearby (~9 pc) M dwarf host. Previous mass […]
Posted inExoplanets, -moons, -comets, Gas Giants, Habitable Zones, Magnetic Fields, Electromagnetism, bioelectricity,, Press Release
Strange Winds Reveal Strongest Hints Yet Of Magnetic Activity In Exoplanets
By measuring the strength of the invisible magnetic fields of seven ultra-hot Jupiters, astronomers have taken a major step toward understanding planets beyond our Solar System. A new study published […]
Posted inAstrochemistry, Astronomy & Telescopes, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
The Atmosphere Of The Warm Neptune GJ 436 b Probed With ESPRESSO
Aims. We aim to identify the presence of atomic and molecular species in the upper atmosphere of the warm Neptune-sized transiting planet GJ 436 b, which has a radiative equilibrium […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
The RoPES Project With HARPS and HARPS-N III. Two Candidate Planets Orbiting The G-type Star HD 161098
Context. The development of refined instruments and techniques for a detailed analysis of the radial velocities (RVs) of stars other than the Sun allows the presence of planetary signals of […]
Posted inExoplanets, -moons, -comets, Ice Giant, Status Report, Stellar Cartography
Origin And Characterization Of Super-Earths And Sub-Neptunes
Super-Earths and sub-Neptunes represent the most common class of exoplanets discovered to date in our galaxy, yet they have no direct analogues in the Solar System. Since 2014, researchers within […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
Recent Development In High-precision High-fidelity Spectrographs For Exoplanet Research And Characterization
High-precision high-fidelity spectrographs are the most powerful instruments for exoplanets detection and characterization. The sub-m/s radial-velocity precision, required to detect Earth-mass exoplanets, necessitates tackling all the sources of instrumental and […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
First Light For PoET: Shining (sun)Light On Exoplanet Research
The Paranal solar ESPRESSO Telescope (PoET), installed at the European Southern Observatory’s (ESO’s) Paranal site in Chile, has made its first observations. The telescope will work with ESO’s ESPRESSO instrument […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Icy Worlds, Status Report
Weighing The Mass Of LHS 3844 b
Context: LHS 3844 b (TOI-136 b) is a ultra short-period, Earth-size exoplanet detected by TESS. It is one of the most favourable object for atmospheric characterisation and the study of […]