Lyman absorption lines in quasar spectra - Evidence for gravitationally-confined gas in dark minihaloes

Details Lyman absorption lines in quasar spectra - Evidence for gravitationally-confined gas in dark minihaloes Lyman absorption lines in quasar spectra - Evidence for gravitationally-confined gas in dark minihaloes

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.218p..25r&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 218, Jan. 1, 1986, p. 25P-30P.

Astronomy and Astrophysics

Astrophysics

259

Astronomical Spectroscopy, Interstellar Gas, Line Spectra, Missing Mass (Astrophysics), Quasars, Absorption Spectra, Gravitational Effects, Lyman Spectra, Photoionization

Scientific paper

Primordial gas photoionized by a UV background can be gravitationally confined, in stable equilibrium, by minihaloes of dark matter with virial velocities ≡30 km s-1, which are an inevitable concomitant of the cold dark matter cosmogony. The calculated properties of these clouds suggest that they could account for the forest of Lyman absorption lines found in the spectra of high-z quasars.

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