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主題: Quasars with a Double-Image Gravitational Lens SDSS J1206+4332 作者: peter 於 2019-01-26 16:07:46 SDSS J1206+4332
https://www.universetoday.com/141335/quasars-with-a-double-image-gravitational-lens-could-help-finally-figure-out-how-fast-the-universe-is-expanding/ (https://www.universetoday.com/wp-content/uploads/2019/01/TommasoTreu2018image_mid.jpg) (https://www.universetoday.com/wp-content/uploads/2019/01/Capture.jpg) An image from the paper. The lensing galaxy is G0 in the center of the image. A and B is the double quasar SDSS J1206+4332. G2 is a triplet galaxy, and G3 and G4 are other nearby galaxies. Image Credit: Hubble Space Telescope, Treu et. al. 2019. |