scholarly journals Interacting dark energy in the early 2020s: A promising solution to the H0 and cosmic shear tensions

2020 ◽  
Vol 30 ◽  
pp. 100666 ◽  
Author(s):  
Eleonora Di Valentino ◽  
Alessandro Melchiorri ◽  
Olga Mena ◽  
Sunny Vagnozzi
Keyword(s):  
Dark Energy ◽  
Interacting Dark Energy ◽  
Promising Solution ◽  
Cosmic Shear

scholarly journals KiDS+VIKING-450 and DES-Y1 combined: Cosmology with cosmic shear

2020 ◽  
Vol 638 ◽  
pp. L1 ◽  
Author(s):  
S. Joudaki ◽  
H. Hildebrandt ◽  
D. Traykova ◽  
N. E. Chisari ◽  
C. Heymans ◽  
...  
Keyword(s):  
Dark Energy ◽  
Cosmic Microwave Background ◽  
Gravitational Lensing ◽  
Error Model ◽  
Calibration Error ◽  
Microwave Background ◽  
Weak Gravitational Lensing ◽  
Dark Energy Survey ◽  
Cosmic Shear ◽  
Energy Survey

We present a combined tomographic weak gravitational lensing analysis of the Kilo Degree Survey (KV450) and the Dark Energy Survey (DES-Y1). We homogenize the analysis of these two public cosmic shear datasets by adopting consistent priors and modeling of nonlinear scales, and determine new redshift distributions for DES-Y1 based on deep public spectroscopic surveys. Adopting these revised redshifts results in a 0.8σ reduction in the DES-inferred value for S​8, which decreases to a 0.5σ reduction when including a systematic redshift calibration error model from mock DES data based on the MICE2 simulation. The combined KV450+DES-Y1 constraint on S8 = 0.762−0.024+0.025 is in tension with the Planck 2018 constraint from the cosmic microwave background at the level of 2.5σ. This result highlights the importance of developing methods to provide accurate redshift calibration for current and future weak-lensing surveys.

scholarly journals New constraints on interacting dark energy from cosmic chronometers

2016 ◽  
Vol 94 (2) ◽  
Author(s):  
Rafael C. Nunes ◽  
Supriya Pan ◽  
Emmanuel N. Saridakis
Keyword(s):  
Dark Energy ◽  
Interacting Dark Energy

scholarly journals Low-ztest for interacting dark energy

2015 ◽  
Vol 92 (12) ◽  
Author(s):  
R. S. Gonçalves ◽  
G. C. Carvalho ◽  
J. S. Alcaniz
Keyword(s):  
Dark Energy ◽  
Interacting Dark Energy

Integrated Sachs-Wolfe effect in interacting dark energy models

2008 ◽  
Vol 77 (10) ◽  
Author(s):  
Germán Olivares ◽  
Fernando Atrio-Barandela ◽  
Diego Pavón
Keyword(s):  
Dark Energy ◽  
Interacting Dark Energy ◽  
Energy Models ◽  
Interacting Dark Energy Models

scholarly journals Inference from the small scales of cosmic shear with current and future Dark Energy Survey data

2016 ◽  
Vol 465 (3) ◽  
pp. 2567-2583 ◽  
Author(s):  
N. MacCrann ◽  
J. Aleksić ◽  
A. Amara ◽  
S. L. Bridle ◽  
C. Bruderer ◽  
...  
Keyword(s):  
Dark Energy ◽  
Survey Data ◽  
Dark Energy Survey ◽  
Small Scales ◽  
Cosmic Shear ◽  
Energy Survey
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