Results 61 to 70 of about 24,404 (180)

A Broad Set of Solar and Cosmochemical Data Indicates High C-N-O Abundances for the Solar System

The Astrophysical Journal
We examine the role of refractory organics as a major C carrier in the outer protosolar nebula and its implications for the compositions of large Kuiper Belt objects (KBOs) and CI chondrites.
Ngoc Truong, Christopher R. Glein, Jonathan I. Lunine   +2 more
doaj   +1 more source

Self Consistent Modeling of Relativistic Runaway Electron Beams Giving Rise to Terrestrial Gamma‐Rays Flashes

Journal of Geophysical Research: Space Physics, Volume 129, Issue 5, May 2024.
Abstract Terrestrial Gamma Ray Flashes (TGFs) are short bursts of gamma rays occurring during thunderstorms. They are believed to be produced by Relativistic Runaway Electron Avalanches (RREAs). In this paper, we present a new numerical model based on the Particle‐In‐Cell (PIC) method to simulate the interactions between the electromagnetic fields and ...
P. Gourbin, S. Celestin
wiley   +1 more source

An Expanded Set of Los Alamos OPLIB Tables in MESA: Type-1 Rosseland-mean Opacities and Solar Models

The Astrophysical Journal
We present a set of 1194 Type-1 Rosseland-mean opacity tables for four different metallicity mixtures. These new Los Alamos OPLIB atomic radiative opacity tables are an order of magnitude larger in number than any previous opacity table release, and span
Ebraheem Farag, Christopher J. Fontes, F. X. Timmes, Earl P. Bellinger, Joyce A. Guzik, Evan B. Bauer, Suzannah R. Wood, Katie Mussack, Peter Hakel, James Colgan, David P. Kilcrease, Manolo E. Sherrill, Tryston C. Raecke, Morgan T. Chidester   +13 more
doaj   +1 more source

Nuclear astrophysicists at war

Natural Sciences, Volume 4, Issue 1, January 2024.
The Manhattan program not only opened the path to the nuclear age for humans, but also triggered a lot of new questions and research directions in nuclear physics and astrophysics that still inform the ideas in these fields today. Abstract The question of energy production in stars stimulated an entire generation of young physicists in the 1930s who ...
Michael Wiescher, Karlheinz Langanke
wiley   +1 more source

Global Analysis of the post-SNO Solar Neutrino Data for Standard and Non-Standard Oscillation Mechanisms

, 2002
What can we learn from solar neutrino observations? Is there any solution to the solar neutrino anomaly which is favored by the present experimental panorama? After SNO results, is it possible to affirm that neutrinos have mass?
A. Bandyopadhyay, A. de Gouvea, A. Halprin, A. M. Gago, A. M. Gago, A. M. Gago, A. M. Gago, A. M. Gago, A. Piepke, A. R. Junghans, A. Romosan, A. Strumia, B. C. Chauhan, C. Athanassopoulos, C. Athanassopoulos, C. E. Ortiz, C. Giunti, C. S. Lim, C. S. Lim, D. N. Abdurashitov, D. O. Caldwell, E. Kh. Akhmedov, E. Kh. Akhmedov, E. Kh. Akhmedov, E. Roulet, G. Dvali, G. L. Fogli, G. L. Fogli, G. L. Fogli, G. L. Fogli, G. L. Fogli, G. M. Fuller, G. Ranucci, H. Murayama, H. Nunokawa, I. R. Kenyon, J. J. Gomez-Cadenas, J. N. Bahcall, J. N. Bahcall, J. N. Bahcall, J. N. Bahcall, J. N. Bahcall, J. N. Bahcall, J. Pantaleone, J. Pantaleone, J. Pulido, J. Pulido, J. Pulido, J. Schechter, J. Schechter, J. T. Peltoniemi, J. T. Peltoniemi, J. W. F. Valle, K. Lande, L. Wolfenstein, M. Altmann, M. C. Gonzalez-Garcia, M. C. Gonzalez-Garcia, M. C. Gonzalez-Garcia, M. Gasperini, M. Gasperini, M. M. Guzzo, M. M. Guzzo, M. M. Guzzo, M. M. Guzzo, M. M. Guzzo, M. M. Guzzo, M. M. Guzzo, M. M. Guzzo, N. Fornengo, N. Fornengo, N. Okada, O. G. Miranda, O. G. Miranda, O. L. G. Peres, P. C. de Holanda, P. I. Krastev, P. Lipari, Q. R. Ahmad, R. Zukanovich Funchal, S. Bergmann, S. Bergmann, S. Bergmann, S. Degl’Innocenti, S. Nakamura, S. P. Mikheyev, S. P. Mikheyev, S. W. Mansour, V. Barger, V. Barger, V. D. Barger, V. N. Gribov, V. Pleitez, W. Hampel, Y. Fukuda, Y. Fukuda, Y. Fukuda, Y. Fukuda, Z. Maki   +98 more
core   +1 more source

A new three flavor oscillation solution of the solar neutrino deficit in R-parity violating supersymmetry [PDF]

, 2001
We present a solution of the solar neutrino deficit using three flavors of neutrinos within the R-parity non-conserving supersymmetric model. In vacuum, mass and mixing is restricted to the nu(mu)-nu(tau) sector only, which we choose in consistency with ...
Adhikari, Rathin, Raychaudhuri, Amitava, Sil, Arunansu   +2 more
core   +2 more sources

The Solar Neutrino Problem

Abstract “...some say the solar neutrino problem is still with us. Others say there never was a problem. My purpose is to present this ambiguous situation to you in such a way that you can make your own judgement.” (W.A. FOWLER 1977). It is not the aim of the present chapter to add one more suggestion to the long list of attempts for ...
Arak M. Mathai, Hans J. Haubold
openaire   +2 more sources

The solar LMA neutrino oscillation solution in the Zee model

, 2003
We examine the neutrino mass matrix in the version of Zee model where both Higgs doublets couple to the leptons. We show that in this case one can accommodate the large mixing angle (LMA) MSW solution of the solar neutrino problem, while avoiding maximal
Bilenky, Cheng, Fiorini, Frampton, Fukuda, Gonzalez-Garcia, Gonzalez-Garcia, Gonzalez-Garcia, Grimus, Grimus, Groom, Jarlskog, K.R.S. Balaji, Kang, Klapdor-Kleingrothaus, Konetschny, Leveille, Ma, Mituda, Petcov, Sher, Smirnov, Sobel, T. Schwetz, W. Grimus, Wolfenstein, Zee, Zee   +27 more
core   +1 more source

The solar neutrino problem and solar neutrino oscillations in vacuum and in matter

, 2008
The solar neutrino problem is reviewed and the possible vacuum oscillation and MSW solutions of the problem are considered.
openaire   +2 more sources

Effect of Coulomb collisions on time variations of the solar neutrino flux

, 1999
We consider the possibility of time variations of the solar neutrino flux due to the radial motion of the Earth and neutrino interference effects. We calculate the time variations of the detected neutrino flux and the extent to which they are suppressed ...
Bahcall J. N., Bahcall J. N., L. Malyshkin, Mikheev S. P., R. Kulsrud, Stodolsky L.   +5 more
core   +3 more sources