Prépublication
· 2026 arXiv
EN
Eclipsing binaries consisting of a solar-type primary and an M dwarf secondary are key laboratories to study objects at the bottom of the main sequence. Fundamental parameters of such stars have a direct impact upon exoplanetary studies, as searches for temper...
Adam T. Stevenson, Yasmin T. Davis et al.
#astro-ph.SR
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
Prépublication
· 2026 arXiv
EN
Language models increasingly support or automate information retrieval from document collections too large to index. This task is difficult when it requires specialist linguistic or scientific knowledge. We used the Wikipedia Game to test language models on an...
Alexander Hickey, Joanna Knight et al.
#cs.AI