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Image of ESO 325-G004

Image of ESO 325-G004

Date: 21 June 2018
Satellite: Hubble Space Telescope
Depicts: ESO 325-G004
Copyright: ESO, ESA/Hubble, NASA

An image of the nearby galaxy ESO 325-G004, created using data collected by the NASA/ESA Hubble Space Telescope and the MUSE instrument on the ESO's Very Large Telescope. MUSE measured the velocity of stars in ESO 325-G004 to produce the velocity dispersion map that is overlaid on top of the Hubble Space Telescope image. Knowledge of the velocities of the stars allowed the astronomers to infer the mass of ESO 325-G004. The inset shows the Einstein ring resulting from the distortion of light from a more distant source by intervening lens ESO 325-004, which becomes visible after subtraction of the foreground lens light.

Last Update: 1 September 2019
21-Jun-2024 13:12 UT

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