Features in the spectra of gamma-ray bursts

Krzysztof Z. Stanek, Bohdan Paczyński, Jeremy Goodman

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Gravitational lensing of cosmological gamma-ray bursts by objects in the mass range ∼1017-1020 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.

Original languageEnglish (US)
Pages (from-to)L7-L10
JournalAstrophysical Journal
Issue number1 PART 2
StatePublished - Aug 10 1993

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Dark matter
  • Gamma rays: bursts
  • Gravitational lensing


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