Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...346l..33s&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 346, Nov. 1, 1989, p. L33-L35.
Astronomy and Astrophysics
Astronomy
45
Infrared Astronomy Satellite, Infrared Sources (Astronomy), Open Clusters, Star Clusters, Star Formation, Molecular Clouds, Spectral Energy Distribution, Stellar Luminosity
Scientific paper
Sensitive images obtained at 1.6 and 2.2 microns reveal a possible dense cluster of stars associated with IRAS 05338-0624 and located within an optically thick molecular core; the visual extinction suffered by cluster members ranges from 7 to 40 mag. A circular region of diameter 70 arcsec (0.16 pc at a distance of 480 pc) contains 20 stellar objects or semistellar knots. Assuming that the depth of the region is comparable to its projected size leads to an estimated stellar density of 6800/cu pc. The ratio of stellar to molecular material contained within the core must lie between 4 percent and 43 percent. It is likely that this cluster will emerge from its parent core as a bound group.
Margulis Michael
Strom Karen M.
Strom Stephen E.
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