Search
Now showing items 21-30 of 87
Testing foundations of modern cosmology with SKA all-sky surveys
(Proceedings of Science, 2014)
Continuum and HI surveys with the Square Kilometre Array (SKA) will allow us to probe some of
the most fundamental assumptions of modern cosmology, including the Cosmological Principle.
SKA all-sky surveys will map an ...
Probing the imprint of interacting dark energy on very large scales
(American Physical Society, 2015)
The observed galaxy power spectrum acquires relativistic corrections from light-cone effects, and these corrections grow on very large scales. Future galaxy surveys in optical, infrared and radio bands will probe increasingly ...
The effect of weak lensing on distance estimates from supernovae
(American Astronomical Society, 2013)
Using a sample of 608 Type Ia supernovae from the SDSS-II and BOSS surveys, combined with a sample of
foreground galaxies from SDSS-II, we estimate the weak lensing convergence for each supernova line of sight.
We find ...
SN Ia host galaxy properties from Sloan Digital Sky Survey-II spectroscopy
(Oxford University Press, 2013)
We study the stellar populations of Type Ia supernova (SN Ia) host galaxies using Sloan
Digital Sky Survey (SDSS)-II spectroscopy. The main focus is on the relationships of SN Ia
properties with stellar velocity dispersion ...
Physical properties of spectroscopically confirmed galaxies at Z ≥ 6. I. Basic characteristics of the rest-frame UV continuum and lyman-alpha emission
(American Astronomical Society, 2013)
We present deep HST near-IR and Spitzer mid-IR observations of a large sample of spectroscopically-
confirmed galaxies at z ≥ 6. The sample consists of 51 Ly-alpha emitters (LAEs) at z ≃ 5.7, 6.5, and 7.0,
and 16 Lyman-break ...
Cosmology on the largest scales with the SKA
(Proceedings of Science, 2014)
The study of the Universe on ultra-large scales is one of the major science cases for the Square
Kilometre Array (SKA). The SKA will be able to probe a vast volume of the cosmos, thus representing
a unique instrument, ...
Nonlinear modulation of the HI power spectrum on ultra-large scales. I
(IOP Science, 2015)
Intensity mapping of the neutral hydrogen brightness temperature promises to provide a three-dimensional view of the universe on very large scales. Nonlinear effects are typically thought to alter only the small-scale ...
Hunting down horizon-scale effects with multi-wavelength surveys
(American Astronomical Society, 2015)
Next-generation cosmological surveys will probe ever larger volumes of the universe, including the largest scales, near and beyond the horizon. On these scales, the galaxy power spectrum carries signatures of local primordial ...
HerMES: The contribution to the cosmic infrared background from galaxies selected by mass and redshift
(American Astronomical Society, 2013)
The cosmic infrared background (CIB), discovered in Far
Infrared Absolute Spectrophotometer (FIRAS) data from the
Cosmic Background Explorer (COBE; Puget et al. 1996;
Fixsen et al. 1998), originates from thermal ...
Overview of Cosmology with the SKA
(Proceedings of Science, 2014)
The new frontier of cosmology will be led by three-dimensional surveys of the large-scale structure of the Universe. Based on its all-sky surveys and redshift depth, the SKA is destined to revolutionize cosmology, in ...