Cosmic structure from radiation-blown bubbles

Details Cosmic structure from radiation-blown bubbles Cosmic structure from radiation-blown bubbles

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989natur.338..132h&link_type=abstract

Nature (ISSN 0028-0836), vol. 338, March 9, 1989, p. 132, 133. Research supported by NSF and NASA.

Computer Science

6

Galactic Radiation, Radiation Pressure, Universe, Absorption Spectra, Hubble Constant, Luminosity, Radiation Distribution

Scientific paper

Absorbing material in an expanding universe filled with sources of radiation is subject to an instability driven by radiation pressure. In the optically thick limit, this instability takes the form of rapidly growing cavities or bubbles in the absorbing material. No matter how small they are when they begin, such bubbles grow to approach a limiting size which depends only on the ratio of photon pressure to absorber inertia. For a nonprimordial submillimeter radiation background as strong as that recently detected by the Berkely-Nagoya group, the bubbles grow to a comoving radius of about 20 Mpc, comparable in scale to the voids seen in the large-scale galaxy distribution.

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