The Messenger GRAVITY Science

GRAVITY and the Galactic Centre

Authors
  • GRAVITY Collaboration

Section
GRAVITY Science
Abstract

On a clear night, our home galaxy, the Milky Way, is visible as a starry ribbon across the sky. Its core is located in the constellation of Sagittarius, approximately where the bright glow is interrupted by the darkest dust filaments. There, hidden, lies a massive black hole. To peer through the obscuring clouds and see the stars and gas near the black hole we use GRAVITY. The main GRAVITY results are the detection of gra- vitational redshift, the most precise mass- distance measurement, the test of the equivalence principle, and the detection of orbital motion near the black hole.


Dates
Created: 2019-12-01/2019-12-31
Length
4 pages

Cite this article:

GRAVITY Collaboration; GRAVITY and the Galactic Centre. The Messenger 178 (December 2019): 26–29. https://doi.org/10.18727/0722-6691/5168