Tootfinder

Zum Behufe meiner Belustigung suche ich gelegentlich nach Listen mit alten, nicht mehr gebräuchlichen Wörtern. Jedoch betrübt es mich kolossal, in den Aufzählungen allenthalben Vokabeln wie "Juniortüte", "abkupfern" oder "blümerant" zu finden. Wie hanebüchen.

Cosmological constraints and standard sirens forecasts for non-dynamical dark energy in Horndeski gravity
Marcello Miranda, Ruchika, Ivan De Martino, Daniele Vernieri, Salvatore Capozziello
https://arxiv.org/abs/2608.04079 https://arxiv.org/pdf/2608.04079 https://arxiv.org/html/2608.04079
arXiv:2608.04079v1 Announce Type: new
Abstract: We investigate an analytically tractable sector of the Extended Cuscuton model, a non-dynamical dark-energy realization within the framework of viable Horndeski gravity. We focus on four benchmark submodels and constrain them with current background probes, namely cosmic chronometers, Type-Ia supernovae, and BAO, while imposing theoretical viability, Lunar Laser Ranging, and Big Bang Nucleosynthesis bounds. We then forecast third-generation bright-standard-siren constraints with Einstein Telescope and Cosmic Explorer networks, considering prompt-emission, afterglow, and kilonova counterparts. Current data already restrict the viable parameter space to small departures from $\Lambda$CDM and do not remove the calibration-driven offset between the CC SN and CC BAO determinations of $H_0$. In principle, future bright sirens substantially sharpen the constraints, especially for kilonova catalogues and extended detector networks. Across the forecast configurations, the relative uncertainty on $H_0$ remains below $13.18\%$ and can reach $0.21\%$ in the most constraining cases, while $\Omega_\Lambda$ is recovered at the percent level in the best cases. These results show that third-generation standard sirens can provide a precise complementary test of non-dynamical dark energy beyond $\Lambda$CDM.
toXiv_bot_toot

Beachmonster :-), Poel bei Wismar 2018
Was Kinder am Strand so alles machen!
#meermittwoch

Attosecond shaping of high-current pulsed electron beams in a home-built 37-keV beamline
Yuichi Tachibana, Marie Ouill\'e, Takuya Hosobata, Takashi Isoshima, Yoshiyuki Takizawa, Yutaka Yamagata, Yuya Morimoto
https://arxiv.org/abs/2605.23253

4 jours, juste 4 jours de marche, déconnecté dans les Alpes. Je lis les actus qui comptent et... meh. Non seulement ça ne s'arrête jamais, mais ça accélère. Mélange d'incompréhension, de colère, de lassitude. Envie de retourner avec les marmottes et les chamois tant qu'ils sont encore lŠ.