scholarly journals Revealing the nonadiabatic nature of dark energy perturbations from galaxy clustering data

2017 ◽  
Vol 96 (8) ◽  
Author(s):  
Hermano Velten ◽  
Raquel Fazolo
2019 ◽  
Vol 100 (2) ◽  
Author(s):  
T. M. C. Abbott ◽  
F. B. Abdalla ◽  
A. Alarcon ◽  
S. Allam ◽  
J. Annis ◽  
...  

2016 ◽  
Vol 94 (6) ◽  
Author(s):  
Y. Park ◽  
E. Krause ◽  
S. Dodelson ◽  
B. Jain ◽  
A. Amara ◽  
...  

2013 ◽  
Vol 88 (6) ◽  
Author(s):  
Elena Giusarma ◽  
Roland de Putter ◽  
Shirley Ho ◽  
Olga Mena

2021 ◽  
Vol 2021 (10) ◽  
pp. 004
Author(s):  
Pedro Carrilho ◽  
Chiara Moretti ◽  
Benjamin Bose ◽  
Katarina Markovič ◽  
Alkistis Pourtsidou

2005 ◽  
Vol 20 (31) ◽  
pp. 2409-2416 ◽  
Author(s):  
JUN-QING XIA ◽  
BO FENG ◽  
XINMIN ZHANG

We consider in this paper a simple oscillating Quintom model of dark energy which has two free parameters and an equation of state oscillating and crossing -1. For low redshifts the equation of state of this model resembles itself similar to the linearly parametrized dark energy, however differs substantially at large redshifts. We fit our model to the observational data separately from the new high redshifts supernova observations from the HST/GOODS program and previous supernova, CMB and galaxy clustering. Our results show that because of the oscillating feature of our model the constraints from observations at large redshifts such as CMB become less stringent.


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