Cosmic depth problem: In distant quasar pairs the distance in the sky is well measurable, but not their separation along our line of sight. A simulation study now shows that the gas zones brightened by quasar light could significantly better limit this lack of depth distance. However, the process is still only a feasibility test with artificial spectra. Camrose (Canada). Quasars are among the brightest beacons of the cosmos. Their energy comes f…
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Cosmic depth problem: In distant quasar pairs the distance in the sky is well measurable, but not their separation along our line of sight. A simulation study now shows that the gas zones brightened by quasar light could significantly better limit this lack of depth distance. However, the process is still only a feasibility test with artificial spectra. Camrose (Canada). Quasars are among the brightest beacons of the cosmos. Their energy comes f…