Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Great Nebula in Andromeda  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224
M31 Andromeda Galaxy - Nuclear Spiral Core Extraction, Valts Treibergs
M31 Andromeda Galaxy - Nuclear Spiral Core Extraction
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M31 Andromeda Galaxy - Nuclear Spiral Core Extraction

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Description

A quick test of subtracting a Red continuum image from Ha. The chaotic spiral core is revealed. See:

http://www.beskeen.com/gallery/galaxy/m31/m31.shtml

Technical paper on this technique: http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1990PASP..102.1217W&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf

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M31 Andromeda Galaxy - Nuclear Spiral Core Extraction, Valts Treibergs

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