Results 81 to 90 of about 2,413,471 (156)
Mathematics and explanation in astronomy and astrophysics [PDF]
, 2007 The purpose of this paper is to expound and clarify the mathematics and explanations commonly employed in certain notable areas of astronomy and astrophysics.
McCabe, Gordon
core +2 more sources
Space Weather, Volume 23, Issue 2, February 2025.Abstract Solar energetic particles (SEP) can cause severe damage to astronauts and sensitive equipment in space, and can disrupt communications on Earth. A lack of thorough understanding the eruption processes of solar activities and the subsequent acceleration and transport processes of energetic particles makes it difficult for physics‐based models ...
Jesse Torres +3 more
wiley +1 more source
Space Weather, Volume 23, Issue 2, February 2025.Abstract Satellite charging in Earth's magnetospheric plasma and radiation belts frequently causes operational anomalies. A recent study of a frequent Space Wire anomaly on GOES linked it to shallow internal charging by 100–300 keV electrons. Solar wind and magnetospheric conditions during a period spanning solar minimum (2017–2021) are analyzed to ...
J. V. Rodriguez +3 more
wiley +1 more source
Galaxy luminosity function pipeline for cosmology and astrophysics [PDF]
, 2022 Nashwan Sabti +2 more
openalex +1 more source
Fractal dimension analysis for automatic morphological galaxy classification [PDF]
arXiv, 2017 In this report we present experimental results using \emph{Haussdorf-Besicovich} fractal dimension for performing morphological galaxy classification. The fractal dimension is a topological, structural and spatial property that give us information about the space were an object lives.
arxiv
Space Weather, Volume 23, Issue 2, February 2025.Abstract Enhanced radiation in the Earth's atmosphere can pose serious hazards to pilots, aircraft passengers, and commercial space travelers. Recent results have shown, statistically, that there is a strong correlation between dose rates observed by Automated Radiation Measurements for Aerospace Safety (ARMAS) instruments at aviation altitudes (>9 km)
Homayon Aryan +5 more
wiley +1 more source
The Calculations of Gravity Fields and Rotation Curves of Whirlpool Galaxies and Dark Material [PDF]
arXiv, 2009 The gravity fields and rotation curves of whirlpool galaxies with thin disc distribution of material are calculated numerically. It is proved that the gravity field of mass thin disc distribution is greatly different from that of spherically symmetrical distribution.
arxiv
The Evolution of Galaxies and Their Environment [PDF]
The Third Teton Summer School on Astrophysics discussed the formation of galaxies, star formation in galaxies, galaxies and quasars at high red shift, and the intergalactic and intercluster medium and cooling flows.
Hollenbach, David +2 more
core +1 more source
Physical modelling of galaxy clusters and Bayesian inference in astrophysics
arXiv: Cosmology and Nongalactic Astrophysics, 2019 I compare the mass values obtained with data taken from the Arcminute Microkelvin Imager (AMI) radio interferometer system and from the Planck satellite. The former of these uses a Bayesian analysis pipeline that parameterises a cluster in terms of its physical quantities, and models the dark matter \& baryonic components of a cluster using Navarro-
openaire +2 more sources
Meteoritics &Planetary Science, Volume 60, Issue 2, Page 247-272, February 2025.Abstract Calcium‐aluminum‐rich inclusions (CAIs) are the first objects that formed in the solar accretion disk and therefore provide valuable insights into the evolution of the early solar system. A long‐standing question regarding this earliest formative period relates to the storage of CAIs in the 1–4 Myr time period between their formation and later
P. Ghaznavi +3 more
wiley +1 more source