Tootfinder

What drives the growth of black holes: a decade of progress
D. M. Alexander (CEA-Durham), R. C. Hickox (Dartmouth College), J. Aird (Edinburgh), F. Combes (Obs de Paris), T. Costa (Newcastle), M. Habouzit (Geneva), C. M. Harrison (Newcastle), R. I. Leng (Edinburgh), L. K. Morabito (CEA-Durham), S. L. Uckelman (Durham), P. Vickers (Durham)
https://

What drives the growth of black holes: a decade of progress
The last decade has witnessed significant progress in our understanding of the growth of super-massive black holes (SMBHs). It is now clear that an Active Galactic Nucleus (AGN: the observed manifestation of a growing SMBH) is an "event" within the broader lifecycle of a galaxy, which can significantly influence the shape and evolution of the galaxy itself. Our view of the obscuring medium that affects the observed properties of an AGN has also undergone a revolution, and we now have a more phy…

Detection of positron in-flight annihilation from the Galaxy
J\"urgen Kn\"odlseder, Karim Sabri, Pierre Jean, Peter von Ballmoos, Gerry Skinner, Werner Collmar
https://arxiv.org/abs/2506.17427

Detection of positron in-flight annihilation from the Galaxy
Although the annihilation of positrons towards the Galactic centre was established more than 50 years ago through the detection of a 511 keV gamma-ray line, the origin of the positrons remains unknown. The gamma-ray line should be accompanied by continuum emission from positron in-flight annihilation, which has not until now been detected. We aim to detect positron in-flight annihilation emission as it provides information on the kinetic energy of the positrons that is key in determining the or…

Apple unveils iOS 26, using its new Liquid Glass design language with an updated lockscreen, Camera, Safari, Phone app, Messages, and more (Jay Peters/The Verge)
https://www.theverge.com/news/678305/apple-ios-26-wwdc-2025

Apple announces iOS 26 with Liquid Glass redesign
Apple announced iOS 26, the next major version of its iPhone operating system, at WWDC 2025.

Superstrate structured Sb$_2$S$_3$ thin-film solar cells by magnetron sputtering of Sb and post-sulfurization
Evgeniia Gilshtein, Harshvardhan Maheshkant Gupta, Andrea Maria Pierri Enevoldsen, Cristina Besleaga, Aurelian Catalin Galca, Stela Canulescu
https://arxiv.org/abs/2506.01170

Superstrate structured Sb$_2$S$_3$ thin-film solar cells by magnetron sputtering of Sb and post-sulfurization
We report on the fabrication and optimization of semi-transparent antimony sulfide (Sb$_2$S$_3$) thin-film solar cells in a superstrate configuration, using RF magnetron sputtering of metallic antimony followed by post-deposition sulfurization. The influence of absorber and buffer layer thicknesses on device performance was systematically studied in FTO/CdS/Sb$_2$S$_3$/Spiro-OMeTAD/Au architectures. Optimizing the Sb$_2$S$_3$ absorber thickness to 100 nm yielded a champion device with a power c…

UVIT Study of the Magellanic Clouds (U-SMAC). III. Hierarchical Star Formation in the Small Magellanic Cloud Regulated by Turbulence
Sipra Hota, Richard de Grijs, Annapurni Subramaniam
https://arxiv.org/abs/2506.08951

UVIT Study of the Magellanic Clouds (U-SMAC). III. Hierarchical Star Formation in the Small Magellanic Cloud Regulated by Turbulence
The Small Magellanic Cloud (SMC), a satellite galaxy of the Milky Way, is an irregular dwarf galaxy exhibiting evidence of recent and ongoing star formation. We performed a spatial clustering analysis of far-ultraviolet stars in the SMC younger than 150 Myr using data from the Ultra Violet Imaging Telescope onboard AstroSat. We identified 236 young stellar structures as surface overdensities at different significance levels. The sizes of these structures range from a few parsecs to several hund…