Results 21 to 30 of about 662 (183)

The growth of structure in the intergalactic medium [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
A {\it stochastic adhesion} model is introduced, with the purpose of describing the formation and evolution of mildly nonlinear structures, such as sheets and filaments, in the intergalactic medium (IGM), after hydrogen reionization. The model is based on replacing the overall force acting on the baryon fluid -- as it results from the composition of ...
MATARRESE, SABINO, MOHAYAEE R.
openaire   +4 more sources

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, Neetu Raj Singh Chundawat, Arindam Mandal   +2 more
doaj   +1 more source

Modeling and Optimization of Infrared-Convection Drying Parameters and Slice Thickness of Onion Slices: Effects on Drying Kinetics and Physicochemical Quality. [PDF]

Food Sci Nutr
This assessment focused on drying time, color, shrinkage, water activity, and rehydration ratio. Onion slices were dried using infrared powers 1500, 3500, and 5500 W/m2, airflow rates 0.3, 0.7, and 1.0 m/s, and thicknesses 4, 6, and 8 mm. Midilli and Kucuk most effectively improved the drying process of onion slices in a thin layer.
El-Mesery HS, ElMesiry AH, Hu Z, Zhang X, Quaye EK.   +4 more
europepmc   +2 more sources

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, Norbert Werner, Kiran Lakhchaura, Jelle de Plaa, Liyi Gu, Jelle S. Kaastra, Junjie Mao, Aurora Simionescu, Igone Urdampilleta   +8 more
wiley   +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, Wasswa Shafik, S. Mojtaba Matinkhah, Zubair Ahmad, Thomas Lagkas   +4 more
wiley   +1 more source

Zeeman Effect in Phase Space

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, R. G. G. Amorim, S. C. Ulhoa, A. E. Santana, F. C. Khanna, Smarajit Triambak   +5 more
wiley   +1 more source

Baryons in the Warm‐Hot Intergalactic Medium [PDF]

The Astrophysical Journal, 2001
This is the pre-published version harvested from ArXiv. The published version is located at http://iopscience.iop.org/0004-637X/552/2/473/
Dave, R, Cen, R, Ostriker, JP, Bryan, GL, Hernquist, L, Katz, N, Weinberg, DH, Norman, ML, O'Shea, B   +8 more
openaire   +4 more sources

The Intergalactic Medium [PDF]

Highlights of Astronomy, 1980
Observations of Lyman-α absorption show that any gas present in the space between clusters of galaxies must be hot, and x-ray observations indicate that there may be present gas whose temperature at low redshifts is 4 × 108 K and whose density is about half the critical value for cosmology.
openaire   +1 more source

Galactic Winds in the Intergalactic Medium

The Astrophysical Journal, 2002
We have performed hydrodynamical simulations to investigate the effects of galactic winds on the high-redshift (z=3) universe. Strong winds suppress the formation of low-mass galaxies significantly, and the metals carried by them produce C IV absorption lines with properties in reasonable agreement with observations. The winds have little effect on the
THEUNS T, Viel, Matteo, KAY S, SCHAYE J, CARSWELL B, TZANAVARIS P.   +5 more
openaire   +3 more sources

PECULIARITIES OF MIXING METALS IN INTERGALACTIC AND INTERSTELLAR MEDIA

Odessa Astronomical Publications, 2008
We review the current status of the problem of metal mixing in the intergalactic and interstellar media. We give simple arguments for inefficiency of mixing metals because of a saturation of hydrodynamic (Rayleigh-Taylor and Kelvin-Helmholz ...
S. Yu. Dedikov, Yu. A. Shchekinov, E. O. Vasiliev   +2 more
doaj   +1 more source