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A detection of bright features in the microwave background

  • M. S. Kowitt
  • , E. S. Cheng
  • , D. A. Cottingham
  • , D. J. Fixsen
  • , C. A. Inman
  • , S. S. Meyer
  • , L. A. Page
  • , J. L. Puchalla
  • , J. E. Ruhl
  • , R. F. Silverberg

Research output: Contribution to journalArticlepeer-review

Abstract

We report the characterization of bright, compact features in the cosmic microwave background radiation (CMBR) detected during the 1992 June and 1994 June balloon flights of the Medium-Scale Anisotropy Measurement. Spectral flux density is determined at 5.7, 9.3, and 16.5 cm-1. No viable counterparts are found in source catalogs at 5 GHz or at 100 μm. The measured spectrum is consistent with a temperature fluctuation in the CMBR. The existence of such features is consistent with adiabatic fluctuation models of anisotropy in the CMBR.

Original languageEnglish (US)
Pages (from-to)17-21
Number of pages5
JournalAstrophysical Journal
Volume482
Issue number1 PART I
DOIs
StatePublished - 1997

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Cosmic microwave background
  • Cosmology: observations

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