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.

Припис:

ESO, ESA/Hubble, NASA

Про зображення

ID:eso1819c
Тип:Художнє
Дата релізу [date]:21 червня 2018 р. 20:00
Пов'язані релізи:eso1819
Розмір:6251 x 4429 px

Про об’єкт

Тип:Early Universe : Cosmology
Категорія:Cosmology
Illustrations

Формати зображень