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21 papers · 2 filters
Non-circular rotating beams and CMB experiments
J. V. Arnau, A. M. Aliaga, D. Saez
This paper is concerned with small angular scale experiments for the observation of cosmic microwave background anisotropies. In the absence of beam, the effects of partial coverag…
Physical parameters in the hot spots and jets of Compact Symmetric Objects
Manuel Perucho, Jose Maria Marti
We present a model to determine the physical parameters of jets and hot spots of a sample of CSOs under very basic assumptions like synchrotron emission and minimum energy conditio…
Modeling Quintessential Inflation
K. Dimopoulos, J. W. F. Valle
We develop general criteria to construct unified frameworks for inflation and quintessence which employ a unique scalar field to drive both. By using such a minimal theoretical fra…
Does the plasma composition affect the long term evolution of relativistic jets?
L. Scheck, M. A. Aloy, J. M. Marti +2
We study the influence of the matter content of extragalactic jets on their morphology, dynamics and emission properties. For this purpose we consider jets of extremely different c…
CMB anisotropy: deviations from Gaussianity due to non-linear gravity
A. M. Aliaga, V. Quilis, J. V. Arnau +1
Non-linear evolution of cosmological energy density fluctuations triggers deviations from Gaussianity in the temperature distribution of the cosmic microwave background. A method t…
A new sample of large angular size radio galaxies. II. The optical data
L. Lara, I. Marquez, W. D. Cotton +4
We constructed and presented in the first paper of this series a new sample of 84 large angular size radio galaxies by selecting from the NRAO VLA Sky Survey objects with angular s…