Quasar Pairs: A Redshift Puzzle?

Abstract

A pair of German astronomers has proposed that quasars are not, as commonly thought, extremely distant galactic nuclei but are in fact ejected from relatively nearby active galaxies. Their assertion challenges the conventional understanding of redshift, the cosmological ruler which is astronomers' number one tool.

Interplay of nonrelativistic and relativistic effects in neutrino oscillations

“…For the above considered energies and for a source-detector distance of a few tens (or greater) of meters the detected |ν ℓ ′ has no overlap with |ν 3 at the registered event at t I , and similarly the detected |ν ℓ ′ has no overlap with {|ν 1 , |ν 2 } at the registered event at t II . With these observations at hand one can easily evaluate the modification to the neutrino oscillation probability (7). The modified expression reads:…”

“…However, very recent astronomical observations [5][6][7] raise potentially serious questions on the validity of the standard cosmological model. First [5,6], the UC Berkeley's Extreme Ultraviolet Explorer satellite's observations of the Coma cluster of galaxies indicates that this cluster of galaxies may contain a submegakelvin cloud of ∼ 10 13 M ⊙ of baryonic gas.…”

“…First [5,6], the UC Berkeley's Extreme Ultraviolet Explorer satellite's observations of the Coma cluster of galaxies indicates that this cluster of galaxies may contain a submegakelvin cloud of ∼ 10 13 M ⊙ of baryonic gas. Second [7], the discovery by the German X-ray satellite Rosat in which a sample of 24 Seyfert galaxies contained 12 that were accompanied by a pairs of X-ray sources, almost certain to be high red shift quasars, aligned on either side of the galaxy. These observations and the associated interpretations, if correct, may place severe questions to cosmological models that depend on the ratio of photon to baryonic density in the universe and its size.…”

“…Second [7], the discovery by the German X-ray satellite Rosat in which a sample of 24 Seyfert galaxies contained 12 that were accompanied by a pairs of X-ray sources, almost certain to be high red shift quasars, aligned on either side of the galaxy. These observations and the associated interpretations, if correct, may place severe questions to cosmological models that depend on the ratio of photon to baryonic density in the universe and its size.…”

Notes on the Kinematic Structure of the Three-Flavor Neutrino Oscillation Framework

“…where ∆m 2 = {∆m 2 2 1 , ∆m 2 3 2 } and ǫ(L) is the energy-integrated average efficiency at L inside the detector, and the definition of E ′ (L, ∆m 2 ), the event density function, is obvious from Eq. (27). In actual experimental situations, such as LSND's NOE and KARMEN, the gain in event rate with decreasing L is inevitably shadowed by a increased background [17].…”