Results 31 to 40 of about 45,520 (173)
The Astrophysical Journal, 2023 This study examines the impact of cluster environments on galaxy properties using data from the Hyper Suprime-Cam Subaru Strategic Program and an optically selected CAMIRA cluster sample.
Hung-Yu Jian +15 more
doaj +1 more source
Evidence for the Galactic contribution to the IceCube astrophysical neutrino flux
, 2015 We show that the Galactic latitude distribution of IceCube astrophysical neutrino events with energies above 100~TeV is inconsistent with the isotropic model of the astrophysical neutrino flux.
Neronov, A., Semikoz, D. V.
core +3 more sources
The Stochastic‐Dissipative Störmer Problem‐Trajectories and Radiation Patterns
Annalen der Physik, Volume 537, Issue 12, December 2025.We consider charged particle motion and radiation in a dipole magnetic field, in the presence of friction and of stochastic forces. The numerical solutions of the Langevin equation reveal how these forces modify the complex dynamics of particles, and they offer some new insights into the nonlinear processes relevant to planetary radiation belts ...
Tiberiu Harko, Gabriela Raluca Mocanu
wiley +1 more source
Apart Cen A are UHECR mostly heavy radioactive and galactic nuclei?
, 2012 Earliest AUGER UHECR anisotropy correlated with AGN within a GZK Universe almost fade away. Recent UHECR mass compositions did show a negligible nucleon composition and an UHECR nuclei (light or heavy) signature.
Fargion, Daniele
core +1 more source
A Comparative Study of VTEC Estimates Derived From S/X VLBI and VGOS Observations
Space Weather, Volume 23, Issue 12, December 2025.Abstract The ionosphere, which strongly varies in time and space, is one of the largest error sources for microwave measurements, if not accounted for accurately. Especially for single‐frequency observations, precise ionospheric models are needed to correct for the ionospheric delays. This study explores the utility of Very Long Baseline Interferometry
Arno Rüegg +2 more
wiley +1 more source
HEAD IN THE STARS, FEET ON THE GROUND: Scale and Astronomy Initiatives in Southern Africa
Cultural Anthropology, Volume 40, Issue 4, Page 571-596, November 2025.ABSTRACT This article explores the evolution of radio astronomy in South Africa and Madagascar, focusing on how “scale” functions as both a way of understanding the world and marking differences in existence. In outer space research, the ground is crucial but often overlooked.
HANNA NIEBER, DAVIDE CHINIGÒ
wiley +1 more source
New Observational Recipes for Measuring Dynamical States of Galaxy Clusters
The Astrophysical JournalDuring cluster assembly, a cluster’s virialization process leaves behind signatures that can provide information on its dynamical state. However, no clear consensus yet exists on the best way to achieve this.
Hyowon Kim +6 more
doaj +1 more source
Improved GALEX UV Photometry for 700,000 SDSS Galaxies
The Astrophysical Journal Supplement Series, 2023 The Galaxy Evolution Explorer (GALEX) satellite performed the first and only large-area UV survey, which in tandem with the Sloan Digital Sky Survey (SDSS) has facilitated modeling of the spectral energy distributions of low-redshift galaxies and the ...
Chandler Osborne +4 more
doaj +1 more source
Deep Space Network Radio Science and Ground‐Based Planetary Radar in the Next Decade
Radio Science, Volume 60, Issue 7, July 2025.Abstract The Deep Space Network (DSN) has been a core operational element of NASA's crewed and robotic exploration of the Solar System since the early 1960s. The primary role of the DSN has been to acquire telemetry and navigation data, but over the years, its radiometric and radar capabilities have expanded to form a system for obtaining unique ...
R. S. Park +13 more
wiley +1 more source
Comparing Inside-out and Outside-in Quenching Modes in MaNGA Observation and MaNGIA Simulation
The Astrophysical JournalThis study probes the inside-out and outside-in quenching status of galaxies to understand the internal and external quenching sources responsible and their roles in galaxy evolution.
Hung-Yu Jian +7 more
doaj +1 more source