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11 papers · 2 filters
A tale of two GRB-SNe at a common redshift of z = 0.54
Z. Cano, D. Bersier, C. Guidorzi +71
We present ground-based and HST optical observations of the optical transients (OTs) of long-duration Gamma Ray Bursts (GRBs) 060729 and 090618, both at a redshift of z = 0.54. For…
Explosive phenomena in modified gravity
E. V. Arbuzova, A. D. Dolgov
Observational manifestations of some models of modified gravity, which have been suggested to explain the accelerated cosmological expansion, are analyzed for gravitating systems w…
Large Scale Traces of Solar System Cold Dust on CMB Anisotropies
M. Maris, C. Burigana, A. Gruppuso +2
We explore the microwave anisotropies at large angular scales produced by the emission from cold and large dust grains, expected to exist in the outer parts of the Solar System, us…
Condensation of charged bosons in plasma physics and cosmology
A. D. Dolgov
The screening of impurities in plasma with Bose-Einstein condensate of electrically charged bosons is considered. It is shown that the screened potential is drastically different f…
Measuring our peculiar velocity on the CMB with high-multipole off-diagonal correlations
Luca Amendola, Riccardo Catena, Isabella Masina +3
Our peculiar velocity with respect to the CMB rest frame is known to induce a large dipole in the CMB. However, the motion of an observer has also the effect of distorting the anis…
General treatment of isocurvature perturbations and non-Gaussianities
David Langlois, Angela Lepidi
We present a general formalism that provides a systematic computation of the linear and non-linear perturbations for an arbitrary number of cosmological fluids in the early Univers…