We report the detection of a gas-giant planet in orbit around both stars of an eclipsing binary star system that also contains the smaller, inner transiting planet TOI-1338b.
Spectroscopy
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
The CARMENES Search For Exoplanets Around M Dwarfs. Guaranteed Time Observations Data Release 1 (2016-2020)
The CARMENES instrument was conceived to deliver high-accuracy radial velocity (RV) measurements with long-term stability to search for temperate rocky planets around a sample of nearby cool stars.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Status Report
AOTF Based Spectro-Polarimeter For Observing Earth As An Exoplanet
Earth is the only known habitable planet and it serves as a testbed to benchmark the observations of temperate and more Earth-like exoplanets.
Posted inAstrochemistry, Astrogeology, Imaging & Spectroscopy, Interstellar, Status Report
Carbonaceous Dust Grains Within Galaxies Seen In The First Billion Years Of Cosmic Time
Interstellar dust captures a significant fraction of elements heavier than helium in the solid state and is an indispensable component both in theory and observations of galaxy evolution.
Posted inBiochemistry & Organic Chemistry, Biophysics, Origin & Evolution of Life, Status Report
Stability of DL-Glyceraldehyde under Simulated Hydrothermal Conditions: Synthesis of Sugar-like Compounds in an Iron(III)-Oxide-Hydroxide-Rich Environment under Acidic Conditions
Researchers have suggested that the condensation of low-molecular-weight aldehydes under basic conditions (e.g., pH > 11) is the prebiotic reaction responsible for the abiotic formation of carbohydrates.
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
Hubble WFC3 Spectroscopy of the Terrestrial Planets L~98-59~c \& d: No Evidence for a Clear Hydrogen Dominated Primary Atmosphere
The nearby bright M-dwarf star L~98-59 has three terrestrial-sized planets. One challenge remaining in characterizing atmospheres around such planets is that it is not known a priori whether they possess […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
On The Application of Bayesian Leave-One-Out Cross-Validation to Exoplanet Atmospheric Analysis
Over the last decade, exoplanetary transmission spectra have yielded an unprecedented understanding about the physical and chemical nature of planets outside our solar system. Physical and chemical knowledge is mainly […]
Posted inBiosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Press Release
Ultimate Limits Of Exoplanet Spectroscopy: A Quantum Approach
A multimode waveguide can be used as HermiteGaussian mode sorter. Light entering the device can be described as a combination of Hermite-Gaussian modes, each input mode is demultiplexed and sent […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
Broadband Vortex Fiber Nulling: High-dispersion Exoplanet Science At The Diffraction Limit
As the number of confirmed exoplanets continues to grow, there is an increased push to spectrally characterize them to determine their atmospheric composition, formation paths, rotation rates, and habitability.
Posted inBiogeochemical Cycles & Geobiology, Habitable Zones, Imaging & Spectroscopy, Press Release, Venus
Phosphine In The Venusian Atmosphere: A Strict Upper Limit From SOFIA GREAT Observations
The presence of phosphine (PH3) in the atmosphere of Venus was reported by Greaves et al. (2021a), based on observations of the J=1-0 transition at 267 GHz using ground-based, millimeter-wave […]