Results 101 to 110 of about 441,564 (317)

A problem of hypothetical emerging of cosmic background radiation photons on horizon in the standard model of universe [PDF]

Skalsky, V. & Sukenik, M.: Radiation of the cosmic background, Astrophysics and Space Science (ISSN 0004-640X), vol. 187, No 1, pp. 155-158, 01/1992, 2000
The present temperature of cosmic background radiation and the present number density of photons of cosmic background radiation in the observed expansive and isotropic relativistic Universe is in the standard model of universe explained by the assumption of emergence of the photons of cosmic background radiation on the horizon (of the most remote ...
arxiv  

A common origin of all the species of high-energy cosmic rays? [PDF]

, 1999
Cosmic ray nuclei, cosmic ray electrons with energy above a few GeV, and the diffuse gamma-ray background radiation (GBR) above a few MeV, presumed to be extragalactic, could all have their origin or residence in our galaxy and its halo.
Antoniou, Nikos, Dar, Arnon, De Rújula, A.   +2 more
core   +1 more source

Microalgae: A Solution for Food Security and Multiplanetary Farming

Food Frontiers, EarlyView.
ABSTRACT Human civilization is threatened by food insecurity and habitat loss owing to the cumulative effects of anthropogenic and natural factors. Thus, increasing food production while using fewer resources and exploring the potential of interstellar migration is essential.
Xiulan Xie, Jiasui Zhan, Maozhi Ren
wiley   +1 more source

Radiometer system to map the cosmic background radiation [PDF]

Review of Scientific Instruments, 1978
We have developed a 33-GHz airborne radiometer system to map large angular scale variations in the temperature of the 3 K cosmic background radiation. A ferrite circulator switches a room-temperature mixer between two antennas pointing 60° apart in the sky.
Gorenstein, Marc V., Muller, Richard A., Smoot, George F., Tyson, J. Anthony   +3 more
openaire   +5 more sources

Contribution of Unresolved Sources to Diffuse Gamma-Ray Emission from the Galactic Plane

The Astrophysical Journal
The diffuse gamma-ray emission from the Milky Way serves as a crucial probe for understanding the propagation and interactions of cosmic rays within our Galaxy.
Jiayin He, Houdun Zeng, Yi Zhang, Qiang Yuan, Rui Zhang, Jun Li   +5 more
doaj   +1 more source

The Atacama Cosmology Telescope: Systematic Transient Search of 3 Day Maps

The Astrophysical Journal, 2023
We conduct a systematic search for transients in 3 yr of data (2017–2019) from the Atacama Cosmology Telescope (ACT). ACT covers 40% of the sky at three bands spanning from 77–277 GHz. Analysis of 3 day mean-subtracted sky maps, which were match filtered
Yaqiong Li, Emily Biermann, Sigurd Naess, Simone Aiola, Rui An, Nicholas Battaglia, Tanay Bhandarkar, Erminia Calabrese, Steve K. Choi, Kevin T. Crowley, Mark Devlin, Cody J. Duell, Shannon M. Duff, Jo Dunkley, Rolando Dünner, Patricio A. Gallardo, Yilun Guan, Carlos Hervías-Caimapo, Adam D. Hincks, Johannes Hubmayr, Kevin M. Huffenberger, John P. Hughes, Arthur Kosowsky, Thibaut Louis, Maya Mallaby-Kay, Jeff McMahon, Federico Nati, Michael D. Niemack, John Orlowski-Scherer, Lyman Page, Maria Salatino, Cristóbal Sifón, Suzanne T. Staggs, Cristian Vargas, Eve M. Vavagiakis, Yuhan Wang, Edward J. Wollack   +36 more
doaj   +1 more source

Constraining the Emissivity of Ultrahigh Energy Cosmic Rays in the Distant Universe with the Diffuse Gamma-ray Emission

, 2011
Ultra-high cosmic rays (UHECRs) with energies >10^19 eV emitted at cosmological distances will be attenuated by cosmic microwave and infrared background radiation through photohadronic processes.
Cavallo, Coppi, Dermer, Farrar, Farrar, Felix Aharonian, Finke, Guetta, Inoue, Kistler, Langer, Le, Neronov, Ruo-Yu Liu, Ryu, Stanek, Stecker, Wanderman, Wdowczyk, Xiang-Yu Wang, Yüksel   +20 more
core   +1 more source

Traditional Chinese Medicine Properties and Microcalorimetry: BioScience Evaluation

Med Research, EarlyView.
ABSTRACT The properties theory of traditional Chinese medicine (TCM), characterized by cold, hot, warm, and cool four properties, is fundamental to its development, distinguishing it from natural, botanical, and chemical medicines. However, despite its significance, there is no unified theoretical definition, bioscientific characterization, or ...
Qiang Li, Hengrui Liu, Jiayan Jin, Yixin Zhang, Shuyi Li, Lin Wang, Shirong Zhao, Chutse Wu, Zhie Fang, Jide Jin   +9 more
wiley   +1 more source

Search for Linear Polarization of the Cosmic Background Radiation [PDF]

Physical Review Letters, 1979
We present preliminary measurements of the linear polarization of the cosmic microwave background (3 K blackbody) radiation. These ground-based measurements are made at 9-mm wavelength. We find no evidence for linear polarization, and set an upper limit for a polarized component of 0.8 mK with 95% confidence level. This implies that the present rate of
Lubin, P. M., Smoot, G. F.
openaire   +6 more sources

Cosmic Gamma-ray Background Radiation [PDF]

arXiv, 2014
The cosmic gamma-ray background radiation is one of the most fundamental observables in the gamma-ray band. Although the origin of the cosmic gamma-ray background radiation has been a mystery for a long time, the Fermi gamma-ray space telescope has recently measured it at 0.1-820 GeV and revealed that the cosmic GeV gamma-ray background is composed of ...
arxiv