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16 papers · 2 filters
Supernova Neutrino Opacity from Nucleon-Nucleon Bremsstrahlung and Related Processes
Steen Hannestad, Georg Raffelt
Elastic scattering on nucleons, νN -> N ν, is the dominant supernova (SN) opacity source for μand τneutrinos. The dominant energy- and number-changing processes were thought to be…
The art of fitting p-mode spectra: Part II. Leakage and noise covariance matrices
T. Appourchaux, M. C. Rabello-Soares, L. Gizon
In Part I we have developed a theory for fitting p-mode Fourier spectra assuming that these spectra have a multi-normal distribution. We showed, using Monte-Carlo simulations, how…
The art of fitting p-mode spectra: Part I. Maximum Likelihood Estimation
T. Appourchaux, L. Gizon, M. C. Rabello-Soares
In this article we present our state of the art of fitting helioseismic p-mode spectra. We give a step by step recipe for fitting the spectra: statistics of the spectra both for sp…
Opacity effects on the solar interior. I. Solar structure
S. C. Tripathy, J. Christensen-Dalsgaard
Despite recent major advances, the opacity remains a source of substantial uncertainty in the calculation of solar models, and hence of solar oscillation frequencies. Hence it is o…
The phase function for stellar acoustic oscillations - IV. Solar-like stars
F. Perez Hernandez, J. Christensen-Dalsgaard
In recent years there has been some progress towards detecting solar-like oscillations in stars. The goal of this challenging project is to analyse frequency spectra similar to tha…
Finite size effects and the mixed quark-hadron phase in neutron stars
Michael B. Christiansen, Norman K. Glendenning
We demonstrate that the form and location (not the size or spacing) of the energetically preferred geometrical structure of the crystalline quark-hadron mixed phase in a neutron st…