An estimate of the COBE quadrupole

Details An estimate of the COBE quadrupole An estimate of the COBE quadrupole

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...403l..51g&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 403, no. 2, p. L51-L54.

Astronomy and Astrophysics

Astronomy

19

Cosmic Background Explorer Satellite, Quadrupoles, Radio Astronomy, Relic Radiation, Background Radiation, Root-Mean-Square Errors

Scientific paper

The COBE quadrupole results are summarized, and it is shown that part of the fluctuations in the cosmic microwave background observed by Bennet et al. (1992) and by Smoot et al. (1992) are actually due to noise. The best estimate of the quadrupole Q(rms) inferred from individual quadrupole components in 'combination' and 'reduced galaxy' maps is 10.5 micro-K, an estimate substantially below the value of about 16 micro-K predicted for the quadrupole by extrapolating to l = 2, the observed power-spectrum index from higher multipole moments. This reduced estimate of the quadrupole helps explain why the best fit to the spectral index steepens to n = 1.5 when the quadrupole is included in the fit.

Affiliated with

Also associated with

No associations

Rating

An estimate of the COBE quadrupole does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An estimate of the COBE quadrupole, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An estimate of the COBE quadrupole will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1272745