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Cosmic Background Explorer (COBE) Satellite Anisotropy Experiment Data Analysis Techniques

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Data Analysis in Astronomy III

Part of the book series: Ettore Majorana International Science Series ((EMISS,volume 40))

Abstract

The COBE Differential Microwave Radiometer (DMR) experiment will measure the anisotropy of the cosmic microwave background radiation (CMBR). The initial phase of data analysis uses a ‘sparse matrix’ algorithm to convert the differential temperature data into sky maps. The sky maps are then fitted to a ‘fast’ multipole expansion in spherical harmonics. Since the CMBR anisotropy is very weak, powerful techniques are used to extract the angular unevenness of the sky from the low signal-to-noise data. Instrument signature and other systematic errors are subtracted by fitting models of these effects. Test results are presented.

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Author information

Authors and Affiliations

  1. STX, Lanham, MD., USA

    S. Torres, R. Hollenhorst, D. Hon, Q. H. Huang & L. Olson

  2. LBL, Berkeley, CA., USA

    J. Aymon & G. Smoot

  3. SAR, Lanham, MD, USA

    C. Backus

  4. NASA-GSFC, Greenbelt, MD., USA

    C. Bennett

  5. JPL, Pasadena, CA, USA

    S. Gulkis, M. Janssen & S. Keihm

  6. UCLA, Los Angeles, CA, USA

    E. Wright

Authors
  1. S. Torres
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  2. J. Aymon
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  3. C. Backus
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  4. C. Bennett
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  5. S. Gulkis
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  6. R. Hollenhorst
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  7. D. Hon
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  8. Q. H. Huang
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  9. M. Janssen
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  10. S. Keihm
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  11. L. Olson
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  12. G. Smoot
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  13. E. Wright
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Editor information

Editors and Affiliations

  1. University of Palermo and Institute of Cosmic Physics and Informatics/CNR, Palermo, Italy

    V. Di Gesù , L. Scarsi  & M. C. Maccarone ,  & 

  2. European Southern Observatory, Garching/Munich, Federal Republic of Germany

    P. Crane

  3. Stanford University, Stanford, California, USA

    J. H. Friedman

  4. University of Rome “La Sapienza”, Rome, Italy

    S. Levialdi

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© 1989 Plenum Press, New York

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Torres, S. et al. (1989). Cosmic Background Explorer (COBE) Satellite Anisotropy Experiment Data Analysis Techniques. In: Di Gesù, V., Scarsi, L., Crane, P., Friedman, J.H., Levialdi, S., Maccarone, M.C. (eds) Data Analysis in Astronomy III. Ettore Majorana International Science Series, vol 40. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-5646-2_32

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  • DOI: https://doi.org/10.1007/978-1-4684-5646-2_32

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4684-5648-6

  • Online ISBN: 978-1-4684-5646-2

  • eBook Packages: Springer Book Archive

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