Tootfinder

Inside the Vera C. Rubin Observatory, whose 3.2-gigapixel camera will produce 60PB of space image data over 10 years, to be analyzed using ML and deep learning (New York Times)
https://www.nytimes.com/2025/06/20/science…

How Vera Rubin Telescope Scientists Will Deal With 60 Million Billion Bytes of Imagery
The Vera C. Rubin Observatory will make the study of stars and galaxies more like the big data-sorting exercises of contemporary genetics and particle physics.

Hybrid concept of detection for a wide-field gamma-ray observatory using Cherenkov telescopes
Alena Bakalov\'a, Ruben Concei\c{c}\~ao, Lucio Gibilisco, Mario Pimenta, Bernardo Tom\'e, Patrik \v{C}echvala, Vladim\'ir Novotn\'y, Jakub V\'icha, Jakub Jury\v{s}ek
https://arxiv.org/abs/2507.16719

Hybrid concept of detection for a wide-field gamma-ray observatory using Cherenkov telescopes
The hybrid detection approach in astroparticle physics has been successfully employed in cosmic-ray experiments and is currently being explored by gamma-ray observatories like LHAASO. We present a study on the hybrid detection concept for the future Southern Wide-field Gamma-ray Observatory (SWGO), integrating multiple Cherenkov telescopes represented in the analysis by Single-Mirror Small-Size imaging atmospheric Cherenkov Telescopes (SST-1M) located next to the surface array of water Cherenko…

Impact of Low-Earth Orbit Satellites on the China Space Station Telescope Observations
Huai-Jin Tang, Xiao-Lei Meng, Hu Zhan, Xian-Min Meng, You-Hua Xu
https://arxiv.org/abs/2507.14994

Impact of Low-Earth Orbit Satellites on the China Space Station Telescope Observations
It is projected that more than 100,000 communication satellites will be deployed in Low-Earth Orbit (LEO) over the next decade. These LEO satellites (LEOsats) will be captured frequently by the survey camera onboard the China Space Station Telescope (CSST), contaminating sources in the images. As such, it is necessary to assess the impact of LEOsats on CSST survey observations. We use the images taken by the Hubble Space Telescope (HST) in its F814W band to simulate $i$-band images for the CSST…

Challan: Solar Full-disk Imaging-Spectroscopic Telescope using the Drift-Scanning Technique
Heesu Yang, Maria S. Madjarska, Donguk Song, Hannah Kwak, Sung-Hong Park, Eun-Kyung Lim, Sujin Kim, Su-Chan Bong, Yeon-Han Kim, Seonghwan Choi
https://arxiv.org/abs/2507.16294

Challan: Solar Full-disk Imaging-Spectroscopic Telescope using the Drift-Scanning Technique
The Challan instrument is a solar full-disk imaging spectroscopic telescope planned to be installed at three sites with a 120-degree longitudinal difference, enabling continuous 24-hour observations of the Sun. It will take data every 2.5 min with a spatial resolution of $2-3^{\prime\prime}$ and a spectral resolving power (R) of >43,000 in H$α$ and Ca II 854.2 nm bands simultaneously. Challan is composed of two modules, each dedicated to a specific waveband. This modular design is beneficial i…

I will speak at Cloud Native Days Austria
topic: The archetypes of the attackers
A fun, interactive lecture on modern cyber threats, blending real-world cases with the speaker’s IT and acting experience to reveal attacker motives, tactics, and how we can defend against them.
https://talkweb.eu/openweb/4484/

Neutrino Telescope Event Classification on Quantum Computers
Pablo Rodriguez-Grasa, Pavel Zhelnin, Carlos A. Arg\"uelles, Mikel Sanz
https://arxiv.org/abs/2506.16530

Neutrino Telescope Event Classification on Quantum Computers
Quantum computers represent a new computational paradigm with steadily improving hardware capabilities. In this article, we present the first study exploring how current quantum computers can be used to classify different neutrino event types observed in neutrino telescopes. We investigate two quantum machine learning approaches, Neural Projected Quantum Kernels (NPQKs) and Quantum Convolutional Neural Networks (QCNNs), and find that both achieve classification performance comparable to classic…

Multi-scale optimal control for Einstein Telescope active seismic isolation
Pooya Saffarieh, Nathan A. Holland, Michele Valentini, Jesse van Dongen, Alexandra Mitchell, Sander Sijtsma, Armin Numic, Wouter Hakvoort, Conor Mow-Lowry
https://arxiv.org/abs/2507.15398

Multi-scale optimal control for Einstein Telescope active seismic isolation
We present a multi-scale optimal control framework for active seismic isolation in the Einstein Telescope, a third-generation gravitational-wave observatory. Our approach jointly optimizes feedback and blending filters in a cross-coupled opto-mechanical system using a unified cost function based on the "acausal optimum," which quantifies sensor signal-to-noise ratios across frequencies. This method enables efficient re-optimization under varying sensor configurations and environmental condition…

A previously unknown regular satellite of #Uranus has been detected in a series of images obtained by the Near-Infrared Camera (NIRCam) onboard the James Webb Space Telescope on 2025 Feb. 2: http://www.cbat.eps.harvard.edu/iau/cbet/005500/CBET005593.txt -> https://science.nasa.gov/blogs/webb/2025/08/19/new-moon-discovered-orbiting-uranus-using-nasas-webb-telescope/ - the object is located at a projected radial distance of 56250 /- 250 km from Uranus' center in the planet's equatorial plane, initial astrometry is consistent with the moon orbiting on a nearly circular orbit with an orbital period 0.402 days, and the observed IR flux from the object indicates a radius of 4 - 5 km, placing it well below the detection threshold of earlier images from Voyager and the Hubble Space Telescope.

Observation of VER J2019 368 with the SST-1M stereoscopic system
Jakub Jury\v{s}ek (for the SST-1M Collaboration), Thomas Tavernier (for the SST-1M Collaboration), Ana Laura M\"uller (for the SST-1M Collaboration)
https://arxiv.org/abs/2507.16408

Observation of VER J2019+368 with the SST-1M stereoscopic system
The Single-Mirror Small Size Telescope (SST-1M) is a small Cherenkov telescope designed to detect gamma rays with energies more than about 1 TeV. The optical design of the SST-1M follows the Davies-Cotton concept to ensure good off-axis performance. In 2022, two SST-1M telescope prototypes were installed in Ondrejov, Czech Republic, and stereoscopic observations of astrophysical gamma-ray sources have been performed since then. VER J2019+368 is an unidentified very-high-energy (VHE) gamma-ray s…

ANTIHEROES-PRODIGE: Quantifying the connection from envelope to disk with the IRAM 30m telescope and NOEMA I. Attack of the streamers: L1448N's fight for order in the chaos
C. Gieser, P. Caselli, D. M. Segura-Cox, J. E. Pineda, L. A. Busch, M. T. Valdivia-Mena, M. J. Maureira, Y. Lin, T. H. Hsieh, Y. R. Chou, L. Bouscasse, P. C. Cort\'es, N. Cunningham, A. Dutrey, A. Fuente, Th. Henning, A. Lopez-Sepulcre, J. Miranzo-Pastor, R. Neri, D. Semenov, M. Tafalla, S. E. van Terwisga

ANTIHEROES-PRODIGE: Quantifying the connection from envelope to disk with the IRAM 30m telescope and NOEMA I. Attack of the streamers: L1448N's fight for order in the chaos
Star formation is a hierarchical process ranging from molecular clouds down to individual protostars. In particular how infalling asymmetric structures, called streamers, delivering new material onto protostellar systems, are connected to the surrounding envelope is not understood. We investigate the connection between the cloud material at 10000 au scales down to 300 au scales towards L1448N in the Perseus star-forming region hosting three young Class 0/I protostellar systems. Sensitive molecu…