Photochemical Runaway in Exoplanet Atmospheres: Implications for Biosignatures

Kavli Affiliate: Sara Seager | First 5 Authors: Sukrit Ranjan, Sara Seager, Zhuchang Zhan, Daniel D. B. Koll, William Bains | Summary: About 2.5 billion years ago, microbes learned to harness plentiful Solar energy to reduce CO$_2$ with H$_2$O, extracting energy and producing O$_2$ as waste. O$_2$ production from this metabolic process was so vigorous […]


Continue.. Photochemical Runaway in Exoplanet Atmospheres: Implications for Biosignatures

An Overview of CHIME, the Canadian Hydrogen Intensity Mapping Experiment

Kavli Affiliate: Kiyoshi Masui | First 5 Authors: The CHIME Collaboration, Mandana Amiri, Kevin Bandura, Anja Boskovic, Tianyue Chen | Summary: The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a drift scan radio telescope operating across the 400-800 MHz band. CHIME is located at the Dominion Radio Astrophysical Observatory near Penticton, BC Canada. The instrument […]


Continue.. An Overview of CHIME, the Canadian Hydrogen Intensity Mapping Experiment

An Overview of CHIME, the Canadian Hydrogen Intensity Mapping Experiment

Kavli Affiliate: Kiyoshi Masui | First 5 Authors: The CHIME Collaboration, Mandana Amiri, Kevin Bandura, Anja Boskovic, Tianyue Chen | Summary: The Canadian Hydrogen Intensity Mapping Experiment (CHIME) is a drift scan radio telescope operating across the 400-800 MHz band. CHIME is located at the Dominion Radio Astrophysical Observatory near Penticton, BC Canada. The instrument […]


Continue.. An Overview of CHIME, the Canadian Hydrogen Intensity Mapping Experiment

On the Energy Dependence of Galactic Cosmic Ray Anisotropies in the Very Local Interstellar Medium

Kavli Affiliate: John Richardson | First 5 Authors: Romina Nikoukar, Matthew E. Hill, Lawrence Brown, Stamatios M. Krimigis, Robert B. Decker | Summary: We report on the energy dependence of galactic cosmic rays (GCRs) in the very local interstellar medium (VLISM) as measured by the Low Energy Charged Particle (LECP) instrument on the Voyager 1 […]


Continue.. On the Energy Dependence of Galactic Cosmic Ray Anisotropies in the Very Local Interstellar Medium

On the Energy Dependence of Galactic Cosmic Ray Anisotropies in the Very Local Interstellar Medium

Kavli Affiliate: John Richardson | First 5 Authors: Romina Nikoukar, Matthew E. Hill, Lawrence Brown, Stamatios M. Krimigis, Robert B. Decker | Summary: We report on the energy dependence of galactic cosmic rays (GCRs) in the very local interstellar medium (VLISM) as measured by the Low Energy Charged Particle (LECP) instrument on the Voyager 1 […]


Continue.. On the Energy Dependence of Galactic Cosmic Ray Anisotropies in the Very Local Interstellar Medium

Measurement and simulation of charge diffusion in a small-pixel charge-coupled device

Kavli Affiliate: Marshall W. Bautz | First 5 Authors: Beverly J. LaMarr, Gregory Y. Prigozhin, Eric D. Miller, Carolyn Thayer, Marshall W. Bautz | Summary: Future high-resolution imaging X-ray observatories may require detectors with both fine spatial resolution and high quantum efficiency at relatively high X-ray energies (>5keV). A silicon imaging detector meeting these requirements […]


Continue.. Measurement and simulation of charge diffusion in a small-pixel charge-coupled device

Measurement and simulation of charge diffusion in a small-pixel charge-coupled device

Kavli Affiliate: Gregory Y. Prigozhin | First 5 Authors: Beverly J. LaMarr, Gregory Y. Prigozhin, Eric D. Miller, Carolyn Thayer, Marshall W. Bautz | Summary: Future high-resolution imaging X-ray observatories may require detectors with both fine spatial resolution and high quantum efficiency at relatively high X-ray energies (>5keV). A silicon imaging detector meeting these requirements […]


Continue.. Measurement and simulation of charge diffusion in a small-pixel charge-coupled device

The TESS-Keck Survey. VIII. Confirmation of a Transiting Giant Planet on an Eccentric 261 day Orbit with the Automated Planet Finder Telescope

Kavli Affiliate: George R. Ricker | First 5 Authors: Paul A. Dalba, Stephen R. Kane, Diana Dragomir, Steven Villanueva Jr., Karen A. Collins | Summary: We report the discovery of TOI-2180 b, a 2.8 $M_{rm J}$ giant planet orbiting a slightly evolved G5 host star. This planet transited only once in Cycle 2 of the […]


Continue.. The TESS-Keck Survey. VIII. Confirmation of a Transiting Giant Planet on an Eccentric 261 day Orbit with the Automated Planet Finder Telescope

TESS Giants Transiting Giants II: The hottest Jupiters orbiting evolved stars

Kavli Affiliate: Alan M. Levine | First 5 Authors: Samuel K. Grunblatt, Nicholas Saunders, Meng Sun, Ashley Chontos, Melinda Soares-Furtado | Summary: Giant planets on short-period orbits are predicted to be inflated and eventually engulfed by their host stars. However, the detailed timescales and stages of these processes are not well known. Here we present […]


Continue.. TESS Giants Transiting Giants II: The hottest Jupiters orbiting evolved stars

A pair of Sub-Neptunes transiting the bright K-dwarf TOI-1064 characterised with CHEOPS

Kavli Affiliate: George R. Ricker | First 5 Authors: Thomas G. Wilson, Elisa Goffo, Yann Alibert, Davide Gandolfi, Andrea Bonfanti | Summary: We report the discovery and characterisation of a pair of sub-Neptunes transiting the bright K-dwarf TOI-1064 (TIC 79748331), initially detected in TESS photometry. To characterise the system, we performed and retrieved CHEOPS, TESS, […]


Continue.. A pair of Sub-Neptunes transiting the bright K-dwarf TOI-1064 characterised with CHEOPS