Precision gravity tests and the Einstein equivalence principle
General Relativity is today the best theory of gravity addressing a wide range of phenomena.
Our understanding of physical laws, from cosmology to local scales, cannot be properly …
Our understanding of physical laws, from cosmology to local scales, cannot be properly …
First Sagittarius A* event horizon telescope results. VI. Testing the black hole metric
Astrophysical black holes are expected to be described by the Kerr metric. This is the only
stationary, vacuum, axisymmetric metric, without electromagnetic charge, that satisfies …
stationary, vacuum, axisymmetric metric, without electromagnetic charge, that satisfies …
First Sagittarius A* Event Horizon Telescope Results. VI: Testing the Black Hole Metric
Event Horizon Telescope Collaboration - arXiv preprint arXiv …, 2023 - arxiv.org
Astrophysical black holes are expected to be described by the Kerr metric. This is the only
stationary, vacuum, axisymmetric metric, without electromagnetic charge, that satisfies …
stationary, vacuum, axisymmetric metric, without electromagnetic charge, that satisfies …
JWST early Universe observations and ΛCDM cosmology
RP Gupta - Monthly Notices of the Royal Astronomical Society, 2023 - academic.oup.com
Deep space observations of the JWST have revealed that the structure and masses of very
early Universe galaxies at high redshifts (), existing at 0.3 Gyr after the Big Bang, may be as …
early Universe galaxies at high redshifts (), existing at 0.3 Gyr after the Big Bang, may be as …
Solar structure and evolution
J Christensen-Dalsgaard - Living Reviews in Solar Physics, 2021 - Springer
The Sun provides a critical benchmark for the general study of stellar structure and
evolution. Also, knowledge about the internal properties of the Sun is important for the …
evolution. Also, knowledge about the internal properties of the Sun is important for the …
Universality of free fall from the orbital motion of a pulsar in a stellar triple system
AM Archibald, NV Gusinskaia, JWT Hessels, AT Deller… - Nature, 2018 - nature.com
Einstein's theory of gravity—the general theory of relativity—is based on the universality of
free fall, which specifies that all objects accelerate identically in an external gravitational …
free fall, which specifies that all objects accelerate identically in an external gravitational …
Running Vacuum in the Universe: Phenomenological Status in Light of the Latest Observations, and Its Impact on the σ8 and H0 Tensions
J Solà Peracaula, A Gómez-Valent, J de Cruz Pérez… - Universe, 2023 - mdpi.com
A substantial body of phenomenological and theoretical work over the last few years
strengthens the possibility that the vacuum energy density (VED) of the universe is …
strengthens the possibility that the vacuum energy density (VED) of the universe is …
First sagittarius A* event horizon telescope results. VI. Testing the black hole metric
V Ramakrishnan, T Savolainen… - Astrophysical Journal …, 2022 - research.aalto.fi
Astrophysical black holes are expected to be described by the Kerr metric. This is the only
stationary, vacuum, axisymmetric metric, without electromagnetic charge, that satisfies …
stationary, vacuum, axisymmetric metric, without electromagnetic charge, that satisfies …
An improved test of the strong equivalence principle with the pulsar in a triple star system
G Voisin, I Cognard, PCC Freire, N Wex… - Astronomy & …, 2020 - aanda.org
Context. The gravitational strong equivalence principle (SEP) is a cornerstone of the general
theory of relativity (GR). Hence, testing the validity of SEP is of great importance when …
theory of relativity (GR). Hence, testing the validity of SEP is of great importance when …
Strong-field gravity tests with the double pulsar
Continued timing observations of the double pulsar PSR J0737–3039A/B, which consists of
two active radio pulsars (A and B) that orbit each other with a period of 2.45 h in a mildly …
two active radio pulsars (A and B) that orbit each other with a period of 2.45 h in a mildly …