Results 31 to 40 of about 32,240 (255)
Effective Screening due to Minihalos During the Epoch of Reionization [PDF]
, 2002 We show that the gaseous halos of collapsed objects introduce a substantial cumulative opacity to ionizing radiation, even after the smoothly distributed hydrogen in the intergalactic medium has been fully reionized. This opacity causes a delay of around
Abraham Loeb +2 more
core +3 more sources
Ensemble fluctuations of the cosmic ray energy spectrum and the intergalactic magnetic field [PDF]
, 2015 The origin of the most energetic cosmic ray particles is one of the most important open problems in astrophysics. Despite a big experimental effort done in the past years, the sources of these very energetic particles remain unidentified.
Medina-Tanco, G., Supanitsky, A. D.
core +2 more sources
Probing the Intergalactic Medium with Fast Radio Bursts [PDF]
, 2014 The recently discovered fast radio bursts (FRBs), presumably of extra-galactic origin, have the potential to become a powerful probe of the intergalactic medium (IGM). We point out a few such potential applications.
Juric, M. +4 more
core +2 more sources
Galaxies and the intergalactic medium: evolutionary interrelations
Odessa Astronomical Publications, 2017 During their life galaxies exchange in matter and energy with the intergalactic medium (IGM). This complex process is a most important factor in galactic evolution as well in evolution of the IGM.
B. M. Shustov
doaj +1 more source
How do atomic code uncertainties affect abundance measurements in the intracluster medium?
Astronomische Nachrichten, Volume 341, Issue 2, Page 203-209, February 2020., 2020 Abstract Accurate chemical abundance measurements of X‐ray‐emitting atmospheres pervading massive galaxies, galaxy groups, and clusters provide essential information on the star formation and chemical enrichment histories of these large‐scale structures.
François Mernier +8 more
wiley +1 more source
A hot intergalactic medium? [PDF]
Monthly Notices of the Royal Astronomical Society, 1986 On a de nouveau examine l'hypothese d'un milieu intergalactique chaud produisant le fond RX 5-200 keV, en tenant compte des corrections relativistes pour l'emissivite du gaz, la thermodynamique et la diffusion ...
P. W. Guilbert, A. C. Fabian
openaire +1 more source
A 5G Beam Selection Machine Learning Algorithm for Unmanned Aerial Vehicle Applications
Wireless Communications and Mobile Computing, Volume 2020, Issue 1, 2020., 2020 The unmanned aerial vehicles (UAVs) emerged into a promising research trend within the recurrent year where current and future networks are to use enhanced connectivity in these digital immigrations in different fields like medical, communication, and search and rescue operations among others.
Hao Meng +4 more
wiley +1 more source
Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020 The two‐dimensional hydrogen atom in an external magnetic field is considered in the context of phase space. Using the solution of the Schrödinger equation in phase space, the Wigner function related to the Zeeman effect is calculated. For this purpose, the Bohlin mapping is used to transform the Coulomb potential into a harmonic oscillator problem ...
R. A. S. Paiva +5 more
wiley +1 more source
Cosmic neutrino flux and spin flavor oscillations in intergalactic medium
Physics Letters B, 2023 The ultra high energy (UHE) cosmic neutrinos are expected to play a pivotal role in the disquisition of physics beyond the standard model of particle physics as well as serve as an ideal cosmic messengers.
Ashutosh Kumar Alok +2 more
doaj +1 more source
Halo White Dwarfs and the Hot Intergalactic Medium [PDF]
, 1996 We present a schematic model for the formation of baryonic galactic halos and hot gas in the Local Group and the intergalactic medium. We follow the dynamics, chemical evolution, heat flow and gas flows of a hierarchy of scales, including: protogalactic ...
Arnauld M. +13 more
core +3 more sources