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.

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Rreth fotografisë

Tipi:Punim artistik
Data e Publikimit:Qer 21, 2018, 20:00 CEST
Publikime të ngjashme:eso1819
Përmasat:6251 x 4429 px

Rreth objektit

Tipi:Early Universe : Cosmology

Formate Fotografish

JPEG i madh
5,8 MB
Publikim JPEG
2,7 MB