Features in the spectra of gamma-ray bursts

Details Features in the spectra of gamma-ray bursts Features in the spectra of gamma-ray bursts

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...413l...7s&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 413, no. 1, p. L7-L10.

Physics

Optics

27

Dark Matter, Gamma Ray Bursts, Gamma Ray Spectra, Gravitational Lenses, Spectrum Analysis, Cosmology, Geometrical Optics, Space-Time Functions, Wave Diffraction, Wave Interaction

Scientific paper

Gravitational lensing of cosmological gamma-ray bursts by objects in the mass range about 10 exp 17 to 10 exp 20 g (femtolensing) may introduce complicated interference patterns that might be interpreted as absorption or emission lines in the bursts' spectra. This phenomenon, if detected, may be used as a unique probe of dark matter in the universe. The BATSE spectral data should allow one to detect such spectral features or to put significant upper limits on the cosmic density of a dark matter component that may be in the femtolensing range. Software to generate theoretical spectra has been developed, and it is accessible over the computer network with anonymous ftp.

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