Self-accelerating universe in scalar-tensor theories after GW170817
نویسندگان
چکیده
منابع مشابه
Accelerating Universe and Scalar-Tensor Theories
Observational probes of dark energy converge on the fact that its equation of state w is close to −1. Some of these probes (for example the Gold SnIa sample) mildly support the possibility that w is time dependent and crosses the phantom divide line w = −1. Such a crossing is inconsistent with dark energy in the form of a single minimally coupled scalar field for any form of the field Lagrangia...
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The LIGO and VIRGO Collaborations have recently announced the detection of gravitational waves from a neutron star-neutron star merger (GW170817) and the simultaneous measurement of an optical counterpart (the γ-ray burst GRB 170817A). The close arrival time of the gravitational and electromagnetic waves limits the difference in speed of photons and gravitons to be less than about 1 part in 10^...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2018
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.97.084004