![]() ![]() ![]() "Pulsars are excellent natural clocks," David Champion, a scientist at the Max Planck Institute for Radio Astronomy and EPTA, said in the statement. When some of them point toward Earth, they appear as highly regular radio pulses. The beams can sweep across space several hundred times per second. Pulsars are remnants of supernova explosions: dying stars that collapse into highly magnetized and rapidly spinning neutron stars that continuously emit beams of electromagnetic radiation. (Image credit: NRAO) A galactic-scale gravitational wave detectorĪstronomers measure how the distance between Earth and pulsars in the Milky Way changes because of gravitational waves that travel through our galaxy. Soc.The Very Large Array in New Mexico was one of several radio telescope facilities that carried out the 15-year gravitational wave search. Wharton, Fundamental physics with Galactic center pulsars, Bull. Wharton, Galactic center pulsars with the ngVLA, ASP Conf. Kramer, A quantitative test of the No-hair theorem with Sgr A* using stars, pulsars, and the Event Horizon Telescope, Astrophys. (LIGO Scientific, VIRGO, KAGRA), Tests of general relativity with GWTC-3, arXiv: 2112.06861 (2021)ĭ. (LIGO Scientific, VIRGO, KAGRA), GWTC-3: Compact binary coalescences observed by LIGO and Virgo during the second part of the third observing run, arXiv: 2111.03606 (2021) Rezzolla, Using space-VLBI to probe gravity around Sgr A*, Astron. (Event Horizon Telescope), First M87 Event Horizon Telescope results (VIII): Magnetic field structure near the Event Horizon, Astrophys. Ho, Coevolution (Or not) of supermassive black holes and host galaxies, Ann. (Event Horizon Telescope), Constraints on black-hole charges with the 2017 EHT observations of M87*, Phys. (Event Horizon Telescope), First Sagittarius A* Event Horizon Telescope results (VI): Testing the black hole metric, Astrophys. (GRAVITY), Detection of the Schwarzschild precession in the orbit of the star S2 near the Galactic centre massive black hole, Astron. Do, et al., Relativistic redshift of the star S0-2 orbiting the Galactic center supermassive black hole, Science 365, 664 (2019), arXiv: 1907.10731 (Event Horizon Telescope), First Sagittarius A* Event Horizon Telescope results (IV): variability, morphology, and black hole mass, Astrophys. (Event Horizon Telescope), First Sagittarius A* Event Horizon Telescope results (III): Imaging of the Galactic center supermassive black hole, Astrophys. (Event Horizon Telescope), First M87 Event Horizon Telescope results (VI): The shadow and mass of the central black hole, Astrophys. Ziurys, Imaging an event horizon: Submm-VLBI of a super massive black hole, in: Astro2010: The Astronomy and Astrophysics Decadal Survey, Vol. (Event Horizon Telescope), First Sagittarius A* Event Horizon Telescope results (I): The shadow of the supermassive black hole in the center of the Milky Way, Astrophys. (Event Horizon Telescope), First M87 Event Horizon Telescope results (I): The shadow of the supermassive black hole, Astrophys. Agol, Viewing the shadow of the black hole at the Galactic center, Astrophys. Luminet, Image of a spherical black hole with thin accretion disk, Astron. Chandrasekhar, The Mathematical Theory of Black Holes, Oxford University Press, 1983 Kerr, Gravitational field of a spinning mass as an example of algebraically special metrics, Phys. Schwarzschild, On the gravitational field of a mass point according to Einstein’s theory, Sitzungsber. Einstein, The Field Equations of Gravitation, Sitzungsber. ![]()
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