Periodically spaced fragmentation in Orion A

Details Periodically spaced fragmentation in Orion A Periodically spaced fragmentation in Orion A

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...247l...9d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 247, no. 1, July 1991, p. L9-L12.

Astronomy and Astrophysics

Astrophysics

42

Molecular Clouds, Orion Nebula, Star Formation, Cosmic Gases, Interstellar Magnetic Fields

Scientific paper

Evidence is found for periodic density structure in the highly fragmented interior of the Orion A molecular cloud from analysis of a large scale map of C(O-18) J = 1 - 0 emission. The spatial wavelength is about 1 parsec, and extends at least over 2 degrees along the main filament of Orion A and is also observed in other filamentary structures in Orion. This periodicity in the clumps is a result of externally triggered and magnetically mediated cloud collapse and fragmentation.

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