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Title:
Representing the `Butterfly' Projection in FITS-Projection Code <monospace>XPH</monospace>
Authors:
Calabretta, Mark R.; Lowe, Stuart R.
Affiliation:
AA(CSIRO Astronomy and Space Science, PO Box 76, Epping, NSW 1710, Australia), AB(Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive Suite 102, Goleta, CA 93117, USA )
Publication:
Publications of the Astronomical Society of Australia, Volume 30, id.e050 3 pp. (PASA Homepage)
Publication Date:
10/2013
Origin:
CUP
Astronomy Keywords:
astronomical databases: miscellaneous, cosmic background radiation, cosmology: observations, methods: data analysis, methods: statistical, techniques: image processing
Abstract Copyright:
2013: Astronomical Society of Australia
DOI:
10.1017/pasa.2013.30
Bibliographic Code:
2013PASA...30...50C

Abstract

The `butterfly' projection is constructed as the polar layout of the HEALPix projection with (H, K) = (4, 3). This short article formalises its representation in FITS.
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