On the determination of dipoles from incomplete galaxy catalogues

Details On the determination of dipoles from incomplete galaxy catalogues On the determination of dipoles from incomplete galaxy catalogues

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.238..417p&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 238, May 1, 1989, p. 417-425.

Statistics

Computation

8

Astronomical Catalogs, Computational Astrophysics, Galactic Radiation, Relic Radiation, Astronomical Models, Dipoles, Spherical Harmonics

Scientific paper

The spherical harmonic and random filling methods, used to account for incomplete sky coverage in dipole calculations, are investigated. A study of their comparative performances is carried out and the former method is shown to be more accurate. Using both these methods, an attempt is made to find the regions responsible for the dipole in the Lahav optical catalog. It is found that the Virgo-Centaurus region provides most of the dipole power.

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