Pollux is a project of UV spectropolarimeter proposed as a European contribution for the planned NASA-led Habitable Worlds Observatory.
near-infrared spectropolarimeter
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Characterizing Planetary Systems With SPIRou: A Temperate Sub-Neptune Exoplanet Orbiting The Nearby Fully-convective Star GJ 1289 And A Candidate Around GJ 3378
We report the discovery of two new exoplanet systems around fully convective stars, found from the radial-velocity (RV) variations of their host stars measured with the nIR spectropolarimeter CFHT/SPIRou over […]
Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Probing Atmospheric Escape Through Metastable He I Triplet Lines In 15 Exoplanets Observed With SPIRou
For several years, the metastable helium triplet line has been successfully used as a tracer to probe atmospheric escape in transiting exoplanets. This absorption in the near-infrared (1083.3 nm) can […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Characterizing Planetary Systems With SPIRou: M-dwarf Planet-search Survey And The Multiplanet Systems GJ 876 And GJ 1148
SPIRou is a near-infrared spectropolarimeter and a high-precision velocimeter. The SPIRou Legacy Survey collected data from February 2019 to June 2022, half of the time devoted to a blind search […]