activity
20242026
collaborators

6 papers

physics.plasm-ph2026

Hybrid Kinetic-MHD Simulations of Drift-Orbit Effects on the Stability and Non-Linear Dynamics of Runaway Electron Beams

Shi-Jie Liu, Hao-Wei Zhang, Hannes Bergstroem +2

During tokamak disruptions, the Ohmic current may be replaced by a non-inductive runaway electron (RE) current, affecting resistive stability. Previous studies suggest that, in the…

astro-ph.HE2026

3D insights into SN 1987A: ALMA observations compared to hydrodynamical explosion simulations

R. Wesson, M. Gabler, M. Lyons +9

We obtain three-dimensional distributions of CO and SiO molecules from high spatial resolution (0.03--0.06") ALMA observations of SN 1987A at two different epochs. The evolution be…

astro-ph.EP2026

Can photoevaporation open gaps in protoplanetary discs?

Michael L. Weber, Barbara Ercolano, Giovanni Picogna

We investigate whether photoevaporation alone can open and sustain gaps in protoplanetary discs by coupling the evolving disc structure with the photoevaporative flow in two dimens…

astro-ph.HE2025

X-ray emission from helium star+black hole binaries as probes of tidally induced spin-up of second-born black holes

Koushik Sen, Aleksandra Olejak, Sambaran Banerjee

Tidally induced spin-up of stripped helium stars in short-period (<\,1\,d) binaries with black holes has been presented as one of the possible mechanisms to reproduce the high-spin…

astro-ph.GA2024

Luminosity distance and extinction by submicrometer-sized grains

Ralf Siebenmorgen, Frank Heymann, Rolf Chini

The distance to the stars is a fundamental parameter, which is determined via two primary methods - parallax and luminosity. While the parallax is a direct trigonometric method, th…

astro-ph.CO2024

Euclid preparation. LII. Forecast impact of super-sample covariance on 3x2pt analysis with Euclid

Euclid Collaboration, D. Sciotti, S. Gouyou Beauchamps +221

Deviations from Gaussianity in the distribution of the fields probed by large-scale structure surveys generate additional terms in the data covariance matrix, increasing the uncert…