Prépublication
· 2026 arXiv
EN
Precise and accurate measurements of host stars are crucial in the search for Earth-like exoplanets, and M-dwarfs are favourable targets in this quest. Low-mass eclipsing binaries offer unique opportunities to empirically determine stellar masses and radii for...
Yasmin T. Davis, Amaury H. M. J. Triaud et al.
#astro-ph.SR
Prépublication
· 2026 arXiv
EN
In the minimal type-I seesaw, one right-handed neutrino (RHN) can decouple from neutrino mass generation. Such a state is usually neglected, yet its feeble couplings make it long-lived, and it can dominate the energy density of the Universe before decaying. We...
Stephen F. King, Rishav Roshan et al.
#hep-ph
Prépublication
· 2026 arXiv
EN
The LZ collaboration has recently reported a single nuclear-recoil event at $E_R=248\pm23_\text{stat}\pm23_\text{sys}$ keV, observed in a 2.84 tonne-year exposure with a local significance of $3.4σ$, pointing towards an inelastic dark matter (DM) interpretatio...
Sujit Kumar Sahoo, Narendra Sahu et al.
#hep-ph
Prépublication
· 2026 arXiv
EN
Artificial warming via engineered aerosols presents a novel pathway to bypass volatile scarcity on modern Mars. Utilizing the Generic Planetary Climate Model, we evaluate the physical feasibility of aerosol-induced terraforming over a full Martian year (669 So...
Tom N. Landefeld, Harald Lesch
#astro-ph.EP
Prépublication
· 2026 arXiv
EN
The LiteBIRD satellite mission aims to measure the tensor-to-scalar ratio $r$ with unprecedented sensitivity through observations of the cosmic microwave background (CMB) $B$-mode polarisation. Robust constraints on $r$ require accurate likelihood modelling ac...
G. Galloni, P. Campeti et al.
#astro-ph.CO
Prépublication
· 2026 arXiv
EN
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
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
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
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
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
Document numérisé par la Bibliothèque nationale de France, publié en 1825. Thème : chimie. Consultable en ligne sur Gallica.
Bibliothèque nationale de France
#Chimie
Document numérisé
· 1825 Gallica (BnF)
FR
Document numérisé par la Bibliothèque nationale de France, publié en 1825. Thème : chimie. Consultable en ligne sur Gallica.
Bibliothèque nationale de France
#Chimie