Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974hrgc.conf....1g&link_type=abstract
H II regions and the galactic centre : proceedings of the Eighth ESLAB Symposium, 4-7 June 1974, Frascati, Italy, p. 1-12 (SEE N
Astronomy and Astrophysics
Astronomy
9
Astronomical Photography, Galactic Structure, Nebulae, Orion Constellation, Photographic Plates, Reflection, Spatial Distribution, Telescopes
Scientific paper
The structure of the neutral and ionized regions of the Orion nebula is described as recorded on direct photographic plates through selected interference filters. Seven of the plates, which were exposed at the prime focus station of the Mayall telescope are reproduced. Differences in structure are noted in the continuum, H alpha + (N 2), (S 2), and H beta exposures. The geometry and variations of the structure plus polarization information leads to the conclusion that much of the outer region of the Orion nebula is reflection nebula.
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