Results 61 to 70 of about 8,399 (150)

Centaurus A as a source of extragalactic cosmic rays with arrival energies well beyond the GZK cutoff

, 1996
The ultra--high energy cosmic rays recently detected by several air shower experiments could have an extragalactic origin. In this case, the nearest active galaxy Centaurus A might be the source of the most energetic particles ever detected on Earth.
Aharonian, Armstrong, Berezinsky, Biermann, Bird, Bird, Blandford, Blandford, Burns, Cavallo, Cronin, Greisen, Gustavo E. Romero, Harris, Hayashida, Jacobi, Jorge A. Combi, Junkes, Kinzer, Landau, Luis A. Anchordoqui, Mannheim, Meisenheimer, O'C. Drury, Pacholczyk, Rachen, Santiago E. Perez Bergliaffa, Stanev, von Ballmoos, Völk, Watson, Zatsepin   +31 more
core   +1 more source

Theoretical study of an LAE-CIV absorption pair at z = 5.7

, 2017
We present a theoretical model to predict the properties of an observed $z =$ 5.72 Lyman $\alpha$ emitter galaxy - CIV absorption pair separated by 1384 comoving kpc/h. We use the separation of the pair and an outflow velocity/time travelling argument to
García, L. A., Ryan-Weber, E. V., Tescari, E., Wyithe, J. S. B.   +3 more
core   +1 more source

Irregularity in gamma ray source spectra as a signature of axionlike particles

, 2012
Oscillations from high energy photons into light pseudoscalar particles in an external magnetic field are expected to occur in some extensions of the standard model.
Denis Wouters, G. G. Raffelt, Pierre Brun   +2 more
core   +1 more source

Webb telescope goes into space. [PDF]

Innovation (Camb), 2022
Xin L.
europepmc   +1 more source

The optical depth of the Universe to ultrahigh energy cosmic ray scattering in the magnetized large scale structure

, 2008
This paper provides an analytical description of the transport of ultrahigh energy cosmic rays in an inhomogeneously magnetized intergalactic medium.
D. Ryu, D. S. Gorbunov, E. Waxman, G. T. Birk, G. T. Zatsepin, H.-P. Reuter, J. Abraham, J. P. Vallée, K. Dolag, Kumiko Kotera, Martin Lemoine, S. Bertone, T. M. Heckman, V. S. Berezinskii, Y. Ide   +14 more
core   +2 more sources

Bioinformation and Neutrino Communication. [PDF]

Bioinformation, 2022
Shapshak P.
europepmc   +1 more source

Radio Signatures of HI at High Redshift: Mapping the End of the ``Dark Ages''

, 1999
The emission of 21-cm radiation from a neutral intergalactic medium (IGM) at high redshift is discussed in connection with the thermal and ionization history of the universe.
Avery Meiksin, Couchman H. M. P., Hogan C. J., Kaiser N., Martin J. Rees, Paolo Tozzi, Piero Madau, Scott D., Shaver P. A.   +8 more
core   +1 more source

Neutrino intergalactic communication, metal life, and viruses: Part 1 quo vadis ex machina. [PDF]

Bioinformation, 2021
Shapshak P.
europepmc   +1 more source

Ultrahigh-energy nuclei, photons, and magnetic fields

, 2010
Combined recent data from cosmic-ray detectors and gamma-ray detectors have produced some surprising insights regarding the sources of ultrahigh-energy cosmic rays (UHECRs), magnetic fields inside and outside the Milky Way, and the universal photon ...
Kusenko, Alexander
core   +1 more source

The LOFAR Magnetism Key Science Project

, 2012
Measuring radio waves at low frequencies offers a new window to study cosmic magnetism, and LOFAR is the ideal radio telescope to open this window widely.
Anderson, James, Beck, Rainer, Bell, Michael, Chyzy, Krzysztof, collaboration, the LOFAR, de Bruyn, Ger, Eislöffel, Jochen, Enßlin, Torsten, Fletcher, Andrew, Haverkorn, Marijke, Heald, George, Horneffer, Andreas, Noutsos, Aris, Reich, Wolfgang, Scaife, Anna   +14 more
core