The rotation of a protoplanetary disc (a disc where planets are being formed) has been observed directly for the very first time by mapping the emissions from the dust grains […]
Observatoire de Paris
Posted inExoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release, Stellar Cartography
A New Signal Around HD 206893 B: An Exomoon Candidate Revealed By Ultra-high-precision Astrometry
A study led by a researcher from the Paris Observatory-PSL within the Laboratory for Instrumentation and Research in Astrophysics (LIRA – CNRS / Sorbonne University / Université Paris Cité) reveals […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release, Stellar Cartography
Have We Discovered The Smallest Extra-solar Planet?
Using pulsar timing techniques at the decimeter radio telescope of the Nançay Radio Observatory, an international team comprising researchers from CNRS, Observatoire de Paris, LPC2E in Orléans, the Max Planck […]
Posted inHabitable Zones, Icy Worlds, Mimas, Press Release, Saturn, Water/Hycean Worlds & Oceanography
Mimas Has A Young Ocean Beneath Its Icy Shell
Hidden beneath the heavily cratered surface of Mimas, one of Saturn’s smallest moons, lies a secret: a global ocean of liquid water.
![Absolute carbon abundance (A(C)) as a function of [Fe/H] of all our gaseous absorption systems (filled circles) and of stars in ultra-faint dwarf galaxies (light blue squares), dwarf spheroidal galaxies (blue squares) and the Milky Way (grey/black squares). CEMP-no halo stars are shown as filled black symbols, C-normal halo stars as filled bordered light grey squares and open symbols are CEMP-s/r stars. We distinguish among C-enhanced (red) and C-normal (yellow) very metal-poor absorbers. Orange circles are iron-rich absorbers. Stellar measurements have typical 1σ errors of 0.2 dex. We used the same stellar sample of Fig. 4 (upper left panel). The horizontal line separates the low-C from the high-C band, while the dashed one indicates the value [C/Fe]=+0.7. The orange shaded area identifies the region where chemical abundances could be affected by dust depletion.](https://i0.wp.com/astrobiology.com/wp-content/uploads/2023/05/Astrochemistry.png?resize=1200%2C720&ssl=1)
Posted inAstrochemistry, Astronomy & Telescopes, Imaging & Spectroscopy, Press Release
Astrochemistry: Gas Clouds With The Leftovers Of The First Stars
Using ESO’s Very Large Telescope (VLT), researchers have found for the first time the fingerprints left by the explosion of the first stars in the Universe. They detected three distant […]