Tootfinder

DMs und Sprachnachrichten in Tiktok
Konkurrenz für WhatsApp: Tiktok ermöglicht nun auch das Versenden von privaten Nachrichten und sogar Sprachnachrichten.
https://www.heise.de/news/DMs-und-Sprachna…

A New High-latitude H I Cloud Complex Entrained in the Northern Fermi Bubble: #FermiBubbles, revealing the Milky Way’s most extreme outflows are younger and more complex than ever imagined.

The IACOB project XV. Updated calibrations of fundamental parameters of Galactic O-type stars
G. Holgado, S. Sim\'on-D\'iaz, A. Herrero
https://arxiv.org/abs/2508.05233 …

The IACOB project XV. Updated calibrations of fundamental parameters of Galactic O-type stars
Modern spectroscopic surveys combined with Gaia distances are enabling reliable estimates of fundamental parameters for hundreds of Galactic O-type stars and the full range of spectral types and luminosity classes. Here we provide updated, statistically robust empirical calibrations of the fundamental parameters of Galactic O-type stars, as well as of their absolute visual magnitudes (Mv) and bolometric corrections (BC), based on high-quality observational data. We perform a homogeneous analysi…

Quantitative Morphology of Galactic Cirrus in Deep Optical Imaging
Qing Liu, Peter Martin, Roberto Abraham, Pieter van Dokkum, Henk Hoekstra, Juan Mir\'o-Carretero, William Bowman, Steven Janssens, Seery Chen, Deborah Lokhorst, Imad Pasha, Zili Shen
https://arxiv.org/abs/2507.05217

Quantitative Morphology of Galactic Cirrus in Deep Optical Imaging
Imaging of optical Galactic cirrus, the spatially resolved form of diffuse Galactic light, provides important insights into the properties of the diffuse interstellar medium (ISM) in the Milky Way. While previous investigations have focused mainly on the intensity characteristics of optical cirrus, their morphological properties remain largely unexplored. In this study, we employ several complementary statistical approaches -- local intensity statistics, angular power spectrum / $Δ$-variance a…

Digitaler Behördenfunk: Neue Schwachstellen bei Tetra – Verschlüsselung versagt
Eine Forschergruppe hat mehr Sicherheitslücken beim Tetra-Funkstandard ausgemacht. Selbst eine Ende-zu-Ende-Verschlüsselungslösung ermöglicht Lauschangriffe.

🇺🇦 #NowPlaying on KEXP's #VarietyMix
TV on the Radio:
🎵 DLZ
#TVontheRadio
https://galacticharmony8.bandcamp.com/track/tv-on-the-radio-dlz-dj-achim-feuervogel-edit
https://open.spotify.com/track/6La3P2zp9KaW1d35hwm0Xh

Gaussian Process Modeling Coronal X-ray Variability of Active Galactic Nuclei
Haiyun Zhang, Dahai Yan, Li Zhang, Niansheng Tang
https://arxiv.org/abs/2507.04715

Gaussian Process Modeling Coronal X-ray Variability of Active Galactic Nuclei
The corona is an integral component of active galactic nuclei (AGNs) which can produce the X-ray emission. However, many of its physical properties and the mechanisms powering this emission remain a mystery. In this work, we study the coronal X-ray variabilities of 13 AGNs by Gaussian Process. 2-10 keV light curves of 13 AGNs can be successfully described by the damped-random walk (DRW) model. The extracted coronal X-ray timescales range from 3 to 50 days. In the plot of variability timescale v…

Fornuftig om formuesskatt.
https://www.dn.no/innlegg/jus/skatt/formuesskatt/adelen-til-giljotinen/2-1-1860660
Vil du gi din stemme til politikere som så tydelig er påvirket av lobbyister?
Egentlig er det et paradox, men jeg tror mang…

A hybrid active galactic nucleus feedback model with spinning black holes, winds and jets
Filip Hu\v{s}ko, Cedric G. Lacey, Joop Schaye, Matthieu Schaller, Evgenii Chaikin, Sylvia Ploeckinger, Alejandro Ben\'itez Llambay, Alexander J. Richings, James W. Trayford
https://arxiv.org/abs/2509.05179…

A hybrid active galactic nucleus feedback model with spinning black holes, winds and jets
We present a hybrid active galactic nucleus (AGN) feedback model that features three accretion disc states (the thick, thin, and slim discs at low, moderate, and super-Eddington accretion rates, respectively), and two feedback modes: thermal isotropic and kinetic jets. The model includes black hole (BH) spin evolution due to gas accretion, BH mergers, jet spindown, and Lense-Thirring torques. The BH spin determines the jet directions and affects the feedback efficiencies. The model is implement…

Interband Lag Variability in Active Galactic Nuclei across ZTF Data from Multiple Years
Zhen-Bo Su, Zhen-Yi Cai, Hengxiao Guo, Mouyuan Sun, Jun-Xian Wang
https://arxiv.org/abs/2507.04359

Interband Lag Variability in Active Galactic Nuclei across ZTF Data from Multiple Years
Interband lags in the optical continua of active galactic nuclei (AGN) have been observed over years of monitoring, yet their physical origins remain unclear. While variable interband lags have been found in a few individual AGN potentially, the temporal behavior of interband lags of an AGN sample has not been explored systematically. Here, we analyze the interband lags of 94 bright AGN at $z<0.8$, using both seasonal one-year and full six-year $gri$-band light curves from Zwicky Transient Faci…