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17 papers · 1 filter
Observing the Big Bounce with Tensor Modes in the Cosmic Microwave Background: Phenomenology and Fundamental LQC Parameters
J. Grain, A. Barrau, T. Cailleteau +1
Cosmological models where the standard big bang is replaced by a bounce have been studied for decades. The situation has, however, dramatically changed in the past years for two re…
Possible detection of phase changes from the non-transiting planet HD 46375b by CoRoT
P. Gaulme, M. Vannier, T. Guillot +19
The present work deals with the detection of phase changes in an exoplanetary system. HD 46375 is a solar analog known to host a non-transiting Saturn-mass exoplanet with a 3.0236…
Mode width fitting with a simple bayesian approach. Application to CoRoT targets HD 181420 and HD 49933
P. Gaulme, T. Appourchaux, P. Boumier
We investigate the asteroseismology of two solar-like targets as observed with the CoRoT satellite, with particular attention paid to the mode fitting. HD 181420 and HD 49933 are t…
HD 46375: seismic and spectropolarimetric analysis of a young Sun hosting a Saturn-like planet
P. Gaulme, S. Deheuvels, W. W. Weiss +13
HD 46375 is known to host a Saturn-like exoplanet orbiting at 0.04 AU from its host star. Stellar light reflected by the planet was tentatively identified in the 34-day CoRoT run a…
The Detection of a Population of Submillimeter-Bright, Strongly-Lensed Galaxies
Mattia Negrello, R. Hopwood, G. De Zotti +86
Gravitational lensing is a powerful astrophysical and cosmological probe and is particularly valuable at submillimeter wavelengths for the study of the statistical and individual p…
A precise asteroseismic age and radius for the evolved Sun-like star KIC 11026764
T. S. Metcalfe, M. J. P. F. G. Monteiro, M. J. Thompson +55
The primary science goal of the Kepler Mission is to provide a census of exoplanets in the solar neighborhood, including the identification and characterization of habitable Earth-…