Tootfinder

Astronomie: Virtuelles Teleskop dank Lasertechnik deutlich leistungsfähiger
Für bessere Aufnahmen kann die Europäische Südsternwarte vier optische Teleskope zusammenschalten. Nun steht dank Lasertechnik ein großer Qualitätssprung an.

The final (8th) #AAS247 presser #Lazuli, described in detail the paper #ArgusArray to the astronomical community: https://carolinastories.unc.edu/developing-the-worlds-largest-sky-survey-telescope/ and https://arstechnica.com/space/2026/01/eric-schmidt-will-massively-invest-in-private-telescopes-including-hubble-replacement/ and https://www.astronomy.com/science/eric-and-wendy-schmidt-to-fund-space-telescope-three-ground-based-observatories/ and https://www.space.com/space-exploration/former-ceo-of-google-spearheads-4-next-gen-telescopes-3-on-earth-and-1-in-space and https://www.scientificamerican.com/article/schmidt-sciences-announces-plan-for-lazuli-a-private-space-telescope/

Event Horizon Telescope Pattern Speeds in the Visibility Domain
Nicholas S. Conroy, Michi Baub\"ock, Vedant Dhruv, Daeyoung Lee, Chi-kwan Chan, Abhishek V. Joshi, Ben Prather, Charles F. Gammie
https://arxiv.org/abs/2510.08848

Event Horizon Telescope Pattern Speeds in the Visibility Domain
The Event Horizon Telescope is preparing to produce time sequences of black hole images, or movies. In anticipation, we developed an autocorrelation technique to measure apparent rotational motion using the image-domain pattern speed $Ω_p$. Here, we extend this technique to the visibility domain and introduce the visibility amplitude pattern speed $Ω_{\mathrm{VA}}$. We show that in the Illinois v3 library of EHT source models, $Ω_{\mathrm{VA}}$ depends on the source inclination, black hole m…

LAP1-B is the First Observed System Consistent with Theoretical Predictions for Population III Stars
#Astrophysics

LAP1-B is the First Observed System Consistent with Theoretical Predictions for Population III Stars
Recently, Nakajima et al. (2025) presented James Webb Space Telescope observations of the $z=6.6$ Population III (Pop III) candidate LAP1-B, which is gravitationally lensed by galaxy cluster MACS J0416. We argue that this is the first object to agree with three key theoretical predictions for Pop III stars: (1) formation in extremely low-metallicity halos with virial temperatures ranging from $T_{\rm vir}\sim 10^3-10^4~{\rm K}$, (2) a top-heavy initial mass function, and (3) formation of low-ma…

AlcheMinT: Fine-grained Temporal Control for Multi-Reference Consistent Video Generation
Sharath Girish, Viacheslav Ivanov, Tsai-Shien Chen, Hao Chen, Aliaksandr Siarohin, Sergey Tulyakov
https://arxiv.org/abs/2512.10943

Vaonis Hyperia: smartes Teleskop für Forschung und Astrofotografie
Das Teleskop Vaonis Hyperia wendet sich allein preislich an Institute wie Sternwarten. Es vereint große Optik mit 17 Linsen und schnellen Antrieb.

A smooth filament origin for distant prolate galaxies seen by JWST and HST: #DarkMatter in ways never before possible.

Identification of Gamma Ray Pulsar Candidates in the \emph{Fermi}-LAT 4FGL-DR4 Unassociated Sources Using Supervised Machine Learning
A. Pathania, K. K. Singh, S. K. Singh, A. Tolamatti, B. B. Singh, K. K. Yadav
https://arxiv.org/abs/2510.08654

Identification of Gamma Ray Pulsar Candidates in the \emph{Fermi}-LAT 4FGL-DR4 Unassociated Sources Using Supervised Machine Learning
The Large Area Telescope (LAT) on board the \emph{Fermi} Gamma-ray Space Telescope has been continuously providing good quality survey data of the entire sky in the high energy range from 30 MeV to 500 GeV and above since August 2008. A succession of gamma-ray source catalogs is published after a comprehensive analysis of the \emph{Fermi}--LAT data. The most recent release of data in the fourth \emph{Fermi}--LAT catalog of gamma-ray sources (4FGL-DR4), based on the first 14 years of obser…

An international group is organizing an observing campaign through the Citizen Science Working Group of the #LUMIO mission: LUMIO is an ESA space mission to observe lunar #impact flashes (LIFs) from space, on the lunar far side (#Geminid meteoroid stream, 13-15 Dec 2025. During the maximum of the stream, the number of visible impact flashes will be higher than during non-shower times, therefore there is a good chance of detecting at least some impact flashes.
Observations can be made using moderately-sized telescopes and a video camera. On the website https://lif.mi.imati.cnr.it/home_page.php there are now a recording of a thorough talk about the project and its slides at https://lif.mi.imati.cnr.it/open_item_page.php?item_idk=LDB-000000001 and slides about the preferred analysis software ALFI at https://lif.mi.imati.cnr.it/open_item_page.php?item_idk=LDB-000000002 -if you want to join in the LGC please sign on by 21 November.

Spatially resolved polarization swings in the supermassive binary black hole candidate OJ 287 with first Event Horizon Telescope observations: #EventHorizonTelescope observations of OJ 287 reveal shock waves interacting with Kelvin-Helmholtz instabilities in the jet, producing polarization rotations in opposite directions.