Gravitational lensing and the Lyman-alpha forest

Details Gravitational lensing and the Lyman-alpha forest Gravitational lensing and the Lyman-alpha forest

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...375..499i&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 375, July 10, 1991, p. 499-502.

Astronomy and Astrophysics

Astrophysics

5

Gravitational Lenses, Lyman Alpha Radiation, Quasars, Astronomical Spectroscopy, Intergalactic Media

Scientific paper

Possible connections between the inhomogeneities responsible for the Lyman-alpha forest in quasar spectra and gravitational lensing effects are investigated. For most models of the Lyman-alpha forest, no significant lensing is expected. For some versions of the CDM model-based minihalo hypothesis, gravitational lensings on scales less than abour 0.1 arcsec would occur with a frequency approaching that with which ordinary galaxies cause arcsecond scale lensing.

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