[IAC] The Instituto de Astrofísica de Canarias (IAC) is taking part in an international study, published in the journal “Science”, which provides the first conclusive evidence of a planet’s influence […]
CARMENES
Posted inAstrochemistry, Astronomy & Telescopes, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Two Fabry-Perots and Two Calibration Units for CARMENES
The wavelength calibration and nightly drift measurements for CARMENES (Calar Alto high-Resolution search for M dwarfs with Exoearths with Near-infrared and optical Echelle Spectrographs) are provided by a combination of […]
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Spinning Out Of Focus: The Challenge Of Rotational Line Broadening In Exoplanet Reflection Spectroscopy
Detecting light reflected off the dayside of an exoplanet in high-resolution spectroscopic data has proved to be a notoriously difficult endeavour. Despite several attempts, the faint signal has yet to […]
Posted inAstronomy & Telescopes, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
A Revised Mass and Period for the Habitable Zone super-Earth GJ 3378b: A Planet Straddling the Cosmic Shoreline
The nearby (d=7.7 pc) M4V star GJ~3378 is a target of our radial velocity (RV) exoplanet survey of fully convective stars in the Solar neighborhood with the near-infrared spectrograph HPF […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Space Weather & Heliophysics, Status Report, Stellar Cartography
Detection and Characterization of the Temperate Super-Earth Ross 318 b
Ross 318 is an M3.5V red dwarf exhibiting significant magnetic activity and a stellar rotation period of ∼ 51.5 d.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
The CARMENES Search For Exoplanets Around M Dwarfs. A Homogeneous Catalogue Of Projected Rotational Velocities Accounting For Limb-darkening
Stellar rotation is closely linked to both age and magnetic activity. Through gyrochronology, it provides a means to estimate stellar ages and trace the evolution of planetary systems, and it […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Characterization Of Two New Transiting Sub-Neptunes And A Terrestrial Planet Around M-dwarf Hosts
We report the confirmation of three transiting exoplanets orbiting TOI-1243 (LSPM~J0902+7138), TOI-4529 (G~2–21), and TOI-5388 (Wolf~346) that were initially detected by TESS through ground-based photometry and radial velocity follow-up measurements […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Interstellar, Status Report
Searching For Exoplanets Born Outside The Milky Way: VOYAGERS Survey Design
Observations over the past few decades have found that planets are common around nearby stars in our Galaxy, but little is known about planets that formed outside the Milky Way.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report, Water/Hycean Worlds & Oceanography
The CARMENES Search For Exoplanets Around M dwarfs: Understanding The Wavelength Dependence Of Radial Velocity Measurements
Context. Current exoplanet surveys are focused on detecting small exoplanets orbiting in the liquid-water habitable zones of their host stars. Despite the recent significant advancements in instrumental developments, the current […]
Posted inExoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
Discovery Of A Nearby Habitable Zone Super-Earth Candidate Amenable To Direct Imaging
We present the discovery of GJ 251 c, a candidate super-Earth orbiting in the Habitable Zone (HZ) of its M dwarf host star.