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35 papers · 2 filters
EMMA - A New Underground Cosmic-Ray Experiment
T. Enqvist, V. Föhr, J. Joutsenvaara +25
A new type of cosmic-ray experiment is under construction in the Pyhäsalmi mine in the underground laboratory of the University of Oulu, Finland. It aims to study the composition o…
Oxygen abundances in metal-poor subgiants as determined from [O I], O I and OH lines
A. E. García Pérez, M. Asplund, F. Primas +2
The debate on the oxygen abundances of metal-poor stars has its origin in contradictory results obtained using different abundance indicators. To achieve a better understanding of…
Gaps below strange star crusts
Morten Stejner, Jes Madsen
The gap caused by a strong electric field between the quark surface and nuclear crust of a strange star is studied in an improved model including gravity and pressure as well as el…
The nature of turbulence in OMC1 at the star forming scale: observations and simulations
M. Gustafsson, A. Brandenburg, J. L. Lemaire +1
Aim: To study turbulence in the Orion Molecular Cloud (OMC1) by comparing observed and simulated characteristics of the gas motions. Method: Using a dataset of vibrationally excite…
Introduction to neutrino cosmology
Steen Hannestad
I review the basics of neutrino cosmology, from the question of neutrino decoupling and the presence of sterile neutrinos to the effects of neutrinos on the cosmic microwave backgr…
Nucleosynthesis in Neutrino-Driven Supernovae
C. Froehlich, W. R. Hix, G. Martinez-Pinedo +5
Core collapse supernovae are the leading actor in the story of the cosmic origin of the chemical elements. Existing models, which generally assume spherical symmetry and parameteri…