Arcs, light echoes, and supergalaxies

Details Arcs, light echoes, and supergalaxies Arcs, light echoes, and supergalaxies

Aug 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...182l..19k&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 182, no. 1, Aug. 1987, p. L19, L20.

Astronomy and Astrophysics

Astrophysics

12

Astronomical Models, Galactic Clusters, Plasma Jets, Quasars, Astronomical Spectroscopy, Linear Polarization, Polarized Electromagnetic Radiation, Stellar Activity

Scientific paper

The author proposes that recently discovered giant arcs in clusters of
galaxies may be the light echoes of extinct quasars. This model
naturally explains their circular shape and blue color, and makes clear
predictions for their polarization and spectrum.

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