Tootfinder

JWST NIRISS Transmission Spectroscopy of the Super-Earth GJ 357b, a Favourable Target for Atmospheric Retention
Jake Taylor, Michael Radica, Richard D. Chatterjee, Mark Hammond, Tobias Meier, Suzanne Aigrain, Ryan J. MacDonald, Loic Albert, Bj\"orn Benneke, Louis-Philippe Coulombe, Nicolas B. Cowan, Lisa Dang, Ren\'e Doyon, Laura Flagg, Doug Johnstone, Lisa Kaltenegger, David Lafreni\`ere, Stefan Pelletier, Caroline Piaulet-Ghorayeb, Jason F. Rowe, Pierre-Alexis Roy

JWST NIRISS Transmission Spectroscopy of the Super-Earth GJ 357b, a Favourable Target for Atmospheric Retention
We present a JWST NIRISS/SOSS transmission spectrum of the super-Earth GJ 357 b: the first atmospheric observation of this exoplanet. Despite missing the first $\sim$40 % of the transit due to using an out-of-date ephemeris, we still recover a transmission spectrum that does not display any clear signs of atmospheric features. We perform a search for Gaussian-shaped absorption features within the data but find that this analysis yields comparable fits to the observations as a flat line. We comp…

Continuous helium absorption from the leading and trailing tails of WASP-107b
Vigneshwaran Krishnamurthy, Yann Carteret, Caroline Piaulet-Ghorayeb, Jared Splinter, Dhvani Doshi, Michael Radica, Louis-Philippe Coulombe, Romain Allart, Vincent Bourrier, Nicolas B. Cowan, David Lafreni\`ere, Lo\"ic Albert, Lisa Dang, Ray Jayawardhana, Doug Johnstone, Lisa Kaltenegger, Adam B. Langeveld, Stefan Pelletier, Jason F. Rowe, Pierre-Alexis Roy, Jake Taylor, Jake D. Turner

Continuous helium absorption from the leading and trailing tails of WASP-107b
The detection of helium escaping the atmosphere of exoplanets has revolutionized our understanding of atmospheric escape and exoplanetary evolution. Using high-precision spectroscopic observations from the James Webb Space Telescope (JWST) NIRISS-SOSS mode, we report the detection of significant helium absorption during the pre-transit phase of WASP-107b (17$σ$), as well as in the transit and post-transit phases. This unique continuous helium absorption begins approximately 1.5 hours before th…

This https://arxiv.org/abs/2505.09530 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Einstein, Free Creations, and His Worldly Cloister
This paper examines "Free Creations of the Human Mind: The Worlds of Albert Einstein" by Diana Kormos Buchwald and Michael D. Gordin. The authors seek to dispel the long-standing myths of Einstein as the "lone genius" of Bern and the "stubborn sage" of Princeton, drawing on newly uncovered archival materials to illuminate his intellectual networks and collaborative engagements. By exploring the authors' reasoning, this paper engages with their interpretations, highlighting the strengths of thei…