Tootfinder

🇺🇦 #NowPlaying on KEXP's #SeekAndDestroy
Lifeless Dark:
🎵 Radiation Sickness
#LifelessDark
https://blackviolencepresents.bandcamp.com/track/lifeless-dark-radiation-sickness
https://open.spotify.com/track/53uFev1pM5sy0romhL86pE

Thermal one-loop self-energy correction for hydrogen-like systems: relativistic approach
M. Reiter, D. Solovyev, A. Bobylev, D. Glazov, T. Zalialiutdinov
https://arxiv.org/abs/2512.06828 https://arxiv.org/pdf/2512.06828 https://arxiv.org/html/2512.06828
arXiv:2512.06828v1 Announce Type: new
Abstract: Within a fully relativistic framework, the one-loop self-energy correction for a bound electron is derived and extended to incorporate the effects of external thermal radiation. In a series of previous works, it was shown that in quantum electrodynamics at finite temperature (QED), the description of effects caused by blackbody radiation can be reduced to using the thermal part of the photon propagator. As a consequence of the non-relativistic approximation in the calculation of the thermal one-loop self-energy correction, well-known quantum-mechanical (QM) phenomena emerge at successive orders: the Stark effect arises at leading order in $\alpha Z$, the Zeeman effect appears in the next-to-leading non-relativistic correction, accompanied by diamagnetic contributions and their relativistic refinements, among other perturbative corrections. The fully relativistic approach used in this work for calculating the SE contribution allows for accurate calculations of the thermal shift of atomic levels, in which all these effects are automatically taken into account. The hydrogen atom serves as the basis for testing a fully relativistic approach to such calculations. Additionally, an analysis is presented of the behavior of the thermal shift caused by the thermal one-loop correction to the self-energy of a bound electron for hydrogen-like ions with an arbitrary nuclear charge $Z$. The significance of these calculations lies in their relevance to contemporary high-precision experiments, where thermal radiation constitutes one of the major contributions to the overall uncertainty budget.
toXiv_bot_toot

Solving the Mystery of the Electron Radiation Belt at #Uranus - Leveraging Knowledge of Earth's Radiation Belts in a Re-Examination of Voyager 2 Observations: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL119311 -> SwRI may have solved a mystery surrounding Uranus’ radiation belts: https://www.swri.org/newsroom/press-releases/swri-may-have-solved-mystery-surrounding-uranus-radiation-belts

Bombed Chornobyl shelter no longer blocks radiation and needs major repair – IAEA | Ukraine | The Guardian
https://www.theguardian.com/world/2025/dec/06/chornobyl-disaster-shelter-no-longer-blocks-radiation-and-needs-major-repair-iaea?

Series A, Episode 07 - Mission To Destiny
KENDALL: My experiments show that radiation from our sun was deficient in certain specific wavelengths. The neutrotope will provide the necessary frequencies to kill the fungus.
BLAKE: And you'll mount this on a satellite to be activated by your sun?
https://blake.torpidity.net/m/1…

BOFH excuse #303:
fractal radiation jamming the backbone

The fifth #AAS press conference https://www.youtube.com/watch?v=0dHXMm3pbWU about Asteroids, Low-Mass Stars, and a Mystery from History covered the papers Lightcurves, Rotation Periods, and Colors for Vera C. Rubin Observatory’s First Asteroid Discoveries (https://iopscience.iop.org/article/10.3847/2041-8213/ae2a30 with https://rubinobservatory.org/news/rubin-record-breaking-asteroid-pre-survey and https://noirlab.edu/public/news/noirlab2601/ and https://www6.slac.stanford.edu/news/2026-01-07-nsf-doe-vera-c-rubin-observatory-spots-record-breaking-asteroid-pre-survey), Dearth of Photosynthetically Active Radiation Suggests No Complex Life on Late M-Star Exoplanets (https://arxiv.org/abs/2601.02548 with https://drive.google.com/drive/folders/1LlyzaK1wTk0hnqNGRCEMNe8BZEaMMFde), A Plasma Torus around a Young Low-mass Star (https://iopscience.iop.org/article/10.3847/2041-8213/ade39a with https://carnegiescience.edu/naturally-occurring-space-weather-station-elucidates-new-way-study-habitability-planets-orbiting-m) and Barnard's mysterious star near Venus - a strange interloper noted during a satellite search (https://scicomm.xyz/@cosmos4u/115849624944298844).

@… wanted to make sure you saw this.
https://mastodon.social/@GeekAndDad/115606048944508598

Très dangereux le Dr Khadir, et encore une fois la complexité du sujet par un simple article dans le journal enlève beaucoup de nuances.
Y'a pas une seule maladie dans le monde qui demande un traitement de ces mêmes antibiotiques sur plusieurs mois ou années. Ca va contre tous les principes de médecine. C'est d'un ridicule absolu que ça soit encore débattu, c'est extrèmement dangereux (pas juste un "problème gastrique")

UV-irradiated outflows from low-mass #protostars in Ophiuchus with JWST/MIRI: https://www.aanda.org/articles/aa/abs/2025/11/aa54977-25/aa54977-25.html -> On the trail of ultraviolet radiation in Ophiuchus / Puzzling ultraviolet radiation in the birthplaces of stars: https://portal.umk.pl/en/article/on-the-trail-of-ultraviolet-radiation-in-ophiuchus / https://www.mpifr-bonn.mpg.de/pressreleases/2025/7