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The 2dF Galaxy Redshift Survey: Spherical harmonics analysis of fluctuations in the final catalogue

Abstract:

We present the result of a decomposition of the 2dF Galaxy Redshift Survey (2dFGRS) galaxy overdensity field into an orthonormal basis of spherical harmonics and spherical Bessel functions. Galaxies are expected to directly follow the bulk motion of the density field on large scales, so the absolute amplitude of the observed large-scale redshift-space distortions caused by this motion is expected to be independent of galaxy properties. By splitting the overdensity field into radial and angula...

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Journal:
Monthly Notices of the Royal Astronomical Society
Volume:
353
Issue:
4
Pages:
1201-1218
Publication date:
2004-10-01
DOI:
ISSN:
0035-8711
Source identifiers:
161047
Language:
English
Keywords:
Pubs id:
pubs:161047
UUID:
uuid:0512e253-1ba3-4d61-a914-7a797fa05e16
Local pid:
pubs:161047
Deposit date:
2012-12-19

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