Astrophysical: General relativity

  • Publication
    Detection of Gravitational Redshift in Open Cluster Nondegenerate Stars
    A key observational prediction of Einstein's Equivalence Principle is that light undergoes redshift when it escapes from a gravitational field. Although...
  • News
    Einstein’s Principle of Equivalence verified in quasars for the first time
    According to Einstein’s theory of general relativity gravity affects light as well as matter. One consequence of this theory, based on the Principle of...
  • News
    New measurements of the solar spectrum verify Einstein’s theory of General Relativity
    An international team of researchers led by the Instituto de Astrofísica de Canarias (IAC) has measured, with unprecedented accuracy, the gravitational redshift...
  • Publication
    Testing Einsteins Equivalence Principle and Its Cosmological Evolution from Quasar Gravitational Redshifts
    We propose and apply a new test of Einsteins equivalence principle (EEP) based on the gravitational redshift induced by the central supermassive black hole of...