Unraveling the Helix Nebula: Its Structure and Knots
O'Dell, C. R., McCullough, Peter R., Meixner, MargaretVolume:
128
Language:
english
Journal:
The Astronomical Journal
DOI:
10.1086/424621
Date:
November, 2004
File:
PDF, 2.77 MB
english, 2004