Two methods of measuring the mass of a galaxy

This infographic compares the two methods used to measure the mass of the galaxy ESO 325-G004. The first method used the Very Large Telescope to measure the velocities of stars in ESO 325-G004. The second method used the Hubble Space Telescope to observe an Einstein ring caused by light from a background galaxy being bent and distorted by ESO 325-G004. By comparing these two methods of measuring the strength of the gravity of ESO 325-G004, it was determined that Einstein’s general theory of relativity works on extragalactic scales — something that had not been previously tested.

Mynd/Myndskeið:

ESO, ESA/Hubble, NASA

Um myndina

Auðkenni:eso1819c
Tegund:Uppdráttur
Útgáfudagur:Jún 21, 2018, 20:00 CEST
Tengdar fréttatilkynningar:eso1819
Stærð:6251 x 4429 px

Um fyrirbærið

Tegund:Early Universe : Cosmology
Flokkur:Cosmology
Illustrations

Myndasnið

Stór JPEG
5,8 MB