J
Jeremy Sakstein
Researcher at University of Pennsylvania
Publications - 89
Citations - 5697
Jeremy Sakstein is an academic researcher from University of Pennsylvania. The author has contributed to research in topics: Dark energy & General relativity. The author has an hindex of 32, co-authored 77 publications receiving 4435 citations. Previous affiliations of Jeremy Sakstein include Institute of Cosmology and Gravitation, University of Portsmouth & University of Portsmouth.
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Astrophysical Tests of Modified Gravity: Constraints from Distance Indicators in the Nearby Universe
TL;DR: In this paper, the authors used distance measurements in the nearby universe to carry out new tests of gravity, surpassing other astrophysical tests by over two orders of magnitude for chameleon theories.
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Early Dark Energy from Massive Neutrinos as a Natural Resolution of the Hubble Tension.
Jeremy Sakstein,Mark Trodden +1 more
TL;DR: In this article, the early dark energy scalar couples to neutrinos and receives a large injection of energy around the time that neutrino become nonrelativistic, which, coincidentally, occurs when their temperature is of order of their mass.
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Astrophysical Probes of the Vainshtein Mechanism: Stars and Galaxies
Kazuya Koyama,Jeremy Sakstein +1 more
TL;DR: In this paper, the rotation curves and lensing potential of Milky Way-like galaxies are calculated and the new equation of hydrostatic equilibrium is derived and solved to predict the modified behavior of stars.
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Stability of scalarized black hole solutions in scalar-Gauss-Bonnet gravity
Hector O. Silva,Caio F. B. Macedo,Thomas P. Sotiriou,Leonardo Gualtieri,Jeremy Sakstein,Emanuele Berti +5 more
TL;DR: In this paper, a radial stability investigation revealed that all scalarized black hole solutions are unstable when the coupling between the scalar field and the Gauss-Bonnet invariant is quadratic in the scalars, whereas stable solutions exist for exponential couplings.
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Hydrogen Burning in Low Mass Stars Constrains Scalar-Tensor Theories of Gravity.
TL;DR: The observation of several low mass red dwarf stars therefore rules out a large class of scalar-tensor gravity theories and places strong constraints on the cosmological parameters appearing in the effective field theory of dark energy.