Abstract
view Abstract Citations (20) References (18) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The NGC 2264 molecular cloud: ammonia and OH observations. Lang, K. R. ; Willson, R. F. Abstract OH and NH3 line emission was mapped in the region of the young star cluster NGC 2264. The NH3 emission suggests an embryonic binary system whose angular momentum could have been derived from a gravitational collapse of a differentially rotating stellar cloud with a size of 10 pc, a molecular hydrogen number density of 5/cu cm, a temperature of 10 K, and a Jeans mass of 1000 solar masses. Because the OH emission is excited in the more tenuous parts of the region, it is more extensive and has its center shifted away from one of the NH3 components in a direction where shearing motions may exist. Publication: The Astrophysical Journal Pub Date: June 1980 DOI: 10.1086/158048 Bibcode: 1980ApJ...238..867L Keywords: Ammonia; Hydroxyl Emission; Interstellar Chemistry; Molecular Spectra; Star Clusters; Nebulae; Stellar Evolution; Stellar Rotation; Astrophysics full text sources ADS | data products SIMBAD (9)
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