First Sagittarius A* event horizon telescope results. VI. Testing the black hole metric

K Akiyama, A Alberdi, W Alef, JC Algaba… - The Astrophysical …, 2022 - iopscience.iop.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 …

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 …

Mass distribution in the Galactic Center based on interferometric astrometry of multiple stellar orbits

R Abuter, N Aimar, A Amorim, J Ball… - Astronomy & …, 2022 - aanda.org
Stars orbiting the compact radio source Sgr A* in the Galactic Center serve as precision
probes of the gravitational field around the closest massive black hole. In addition to …

Detection of the Schwarzschild precession in the orbit of the star S2 near the Galactic centre massive black hole

R Abuter, A Amorim, M Bauböck, JP Berger… - Astronomy & …, 2020 - aanda.org
The star S2 orbiting the compact radio source Sgr A* is a precision probe of the gravitational
field around the closest massive black hole (candidate). Over the last 2.7 decades we have …

Relativistic redshift of the star S0-2 orbiting the Galactic Center supermassive black hole

T Do, A Hees, A Ghez, GD Martinez, DS Chu, S Jia… - Science, 2019 - science.org
The general theory of relativity predicts that a star passing close to a supermassive black
hole should exhibit a relativistic redshift. In this study, we used observations of the Galactic …

The Galactic Center as a laboratory for theories of gravity and dark matter

M De Laurentis, I De Martino… - Reports on Progress in …, 2023 - iopscience.iop.org
Abstract The Galactic Center (GC) of the Milky Way, thanks to its proximity, allows to perform
astronomical observations that investigate physical phenomena at the edge of astrophysics …

Nobel Lecture: A forty-year journey

R Genzel - Reviews of Modern Physics, 2022 - APS
Nobel Lecture: A forty-year journey* Page 1 Nobel Lecture: A forty-year journey* Reinhard
Genzel Max Planck Institute for Extraterrestrial Physics, 85748 Garching, Germany and …

orvara: An Efficient Code to Fit Orbits Using Radial Velocity, Absolute, and/or Relative Astrometry

TD Brandt, TJ Dupuy, Y Li, GM Brandt… - The Astronomical …, 2021 - iopscience.iop.org
We present an open-source Python package, Orbits from Radial Velocity, Absolute, and/or
Relative Astrometry (orvara), to fit Keplerian orbits to any combination of radial velocity …

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 …

The dark mass signature in the orbit of S2

G Heißel, T Paumard, G Perrin, F Vincent - Astronomy & Astrophysics, 2022 - aanda.org
Context. The Schwarzschild precession of star S2, which orbits the massive black hole at the
centre of the Milky Way, has recently been detected with the result of∼ 12 arcmin per orbit …