Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Starkman, G. D"'
Autor:
Parimbelli, G., Anselmi, S., Viel, M., Carbone, C., Villaescusa-Navarro, F., Corasaniti, P. S., Rasera, Y., Sheth, R., Starkman, G. D., Zehavi, I.
Publikováno v:
JCAP01(2021)009
The linear point (LP), defined as the mid-point between the dip and the peak of the two-point clustering correlation function (TPCF), has been shown to be an excellent standard ruler for cosmology. In fact, it is nearly redshift-independent, being we
Externí odkaz:
http://arxiv.org/abs/2007.10345
The absence of large-angle correlations in the map of cosmic microwave background temperature fluctuations is among the well-established anomalies identified in full-sky and cut-sky maps over the past three decades. Suppressed large-angle correlation
Externí odkaz:
http://arxiv.org/abs/1812.03946
A lack of correlations in the microwave background temperature between sky directions separated by angles larger than 60 degrees has recently been confirmed by data from the Planck satellite. This feature arises as a random occurrence within the stan
Externí odkaz:
http://arxiv.org/abs/1310.7603
The anomalous lack of large angle temperature correlations has been a surprising feature of the cosmic microwave background (CMB) since first observed by COBE-DMR and subsequently confirmed and strengthened by the Wilkinson Microwave Anisotropy Probe
Externí odkaz:
http://arxiv.org/abs/1303.4786
In this work we investigate the effect on weak-lensing shear and convergence measurements due to distortions from the Lorentz boost induced by our Galaxy's motion. While no ellipticity is induced in an image from the Lorentz boost to first order in b
Externí odkaz:
http://arxiv.org/abs/1210.6049
Publikováno v:
MNRAS, 418, 4, 2308-2329 (2011)
We present a new method based on a Bayesian hierarchical model to extract constraints on cosmological parameters from SNIa data obtained with the SALT-II lightcurve fitter. We demonstrate with simulated data sets that our method delivers tighter stat
Externí odkaz:
http://arxiv.org/abs/1102.3237
Publikováno v:
Mon. Not. R. Astron. Soc., 410, 4, 2488-2496 (2011)
While Bayesian model selection is a useful tool to discriminate between competing cosmological models, it only gives a relative rather than an absolute measure of how good a model is. Bayesian doubt introduces an unknown benchmark model against which
Externí odkaz:
http://arxiv.org/abs/1005.3655
Publikováno v:
Phys.Rev.D81:104015,2010
We present a comprehensive investigation of cosmological constraints on the class of vector field formulations of modified gravity called Generalized Einstein-Aether models. Using linear perturbation theory we generate cosmic microwave background and
Externí odkaz:
http://arxiv.org/abs/1002.0849
Publikováno v:
Phys.Rev.D77:084010,2008
We study the cosmological stability of a class of theories with a dynamical preferred frame. For a range of actions, we find cosmological solutions which are compatible with observations of the recent history of the Universe: a matter dominated era f
Externí odkaz:
http://arxiv.org/abs/0711.0520
Publikováno v:
Phys.Rev.D75:044017,2007
There is evidence that Newton and Einstein's theories of gravity cannot explain the dynamics of a universe made up solely of baryons and radiation. To be able to understand the properties of galaxies, clusters of galaxies and the universe on the whol
Externí odkaz:
http://arxiv.org/abs/astro-ph/0607411