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- Centre National de la Recherche ScientifiqueFR640 papers
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8 papers · 2 filters
Current constraints on early and stressed dark energy models and future 21 cm perspectives
Maria Archidiacono, Laura Lopez-Honorez, Olga Mena
Despite the great progress of current cosmological measurements, the nature of the dominant component of the universe, coined dark energy, is still an open question. Early Dark Ene…
On the local variation of the Hubble constant
Io Odderskov, Steen Hannestad, Troels Haugbølle
We have carefully studied how local measurements of the Hubble constant, , can be influenced by a variety of different parameters related to survey geometry, depth, and size,…
The Carnegie Supernova Project: Intrinsic Colors of Type Ia Supernovae
Christopher R. Burns, Maximilian Stritzinger, M. M. Phillips +12
We present an updated analysis of the intrinsic colors of SNe Ia using the latest data release of the Carnegie Supernova Project. We introduce a new light-curve parameter very simi…
Cosmology with self-interacting sterile neutrinos and dark matter - A pseudoscalar model
Maria Archidiacono, Steen Hannestad, Rasmus Sloth Hansen +1
Short baseline neutrino oscillation experiments have shown hints of the existence of additional sterile neutrinos in the eV mass range. Such sterile neutrinos are incompatible with…
Light sterile neutrinos after BICEP-2
Maria Archidiacono, Nicolao Fornengo, Stefano Gariazzo +3
The recent discovery of B-modes in the polarization pattern of the Cosmic Microwave Background by the BICEP2 experiment has important implications for neutrino physics. We revisit…
Near-infrared K corrections of Type Ia Supernovae and their errors
Luis Boldt, Maximilian Stritzinger, Chris Burns +5
In this paper we use near-infrared (NIR) spectral observations of Type Ia supernovae (SNe Ia) to study the uncertainties inherent to NIR K corrections. To do so, 75 previously publ…