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Prépublication · 2026 arXiv EN

CosmoForge II. An exact treatment of arbitrary linear filters in quadratic maximum-likelihood power spectrum estimation

Ground-based cosmic microwave background (CMB) experiments filter their time-ordered data to remove $1/f$ noise and ground pickup, which removes or mixes the large angular scales where primordial $B$ modes peak. A common remedy is a pseudo-$C_\ell$ estimator w...

Giacomo Galloni #astro-ph.CO

Prépublication · 2026 arXiv EN

Physical characterization of Earth's quasi-satellite 2025 PN7

A hypothetical origin as lunar ejecta for Earth's quasi-satellites (QS) has gained initial support in recent years, but there is scarce photometric and/or spectroscopic data to support the premise due to the rare observational windows to obtain such data for t...

Grigori Fedorets, Zuri Gray et al. #astro-ph.EP

Prépublication · 2026 arXiv EN

Radiation limits on amino acid preservation and chiral measurement at Oxia Planum

Amino acid enantiomeric excess (EE) is a potential biosignature, but its measurement requires sufficient surviving material as well as preserved chirality. We derive a criterion that separates abundance-limited from racemization-limited preservation and apply...

Dimitra Atri #astro-ph.EP

Prépublication · 2026 arXiv EN

A breath of fresh air: Oxygen enhancement from silicate sublimation during early protostellar evolution

Recently, an analog to the t = 0 moment of our Solar System's meteoritic record was identified for the first time around the Class I protostar HOPS-315. Crystalline silicates were found to recondense from SiO gas that cools as it advects upward from a hot ther...

F. J. Ballieux, M. K. McClure et al. #astro-ph.SR

Prépublication · 2026 arXiv EN

Rattling Resonant Chains with Dynamical Tides and Parametric Resonance Passage

Close-in sub-Neptunes are born in mean-motion resonant chains that break apart on a timescale of $\sim$100 Myr. If the chains are first ''rattled'' --- have their free eccentricities excited to a few percent --- then breaking occurs on the required timescale....

Mohammad Farhat, Eugene Chiang #astro-ph.EP

Document numérisé · 1825 Gallica (BnF) FR

Le Cuisinier des cuisiniers, ou l'Art de la cuisine enseigné économiquement d'après les plus grands maîtres... Suivi d'une chimie appliquée à la cuisine, par Accum ; de l'art de soigner les vins, de conserver les substances alimentaires. Par A.-M. Ve…

Document numérisé par la Bibliothèque nationale de France, publié en 1825. Thème : chimie. Consultable en ligne sur Gallica.