The centers of star formation in NGC 6334 and their stellar mass distributions

Details The centers of star formation in NGC 6334 and their stellar mass distributions The centers of star formation in NGC 6334 and their stellar mass distributions

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apjs...69...99s&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 69, Jan. 1989, p. 99-140.

Astronomy and Astrophysics

Astrophysics

49

H Ii Regions, Mass Distribution, Star Formation, Stellar Mass, Astronomical Catalogs, Molecular Clouds, Near Infrared Radiation, Pre-Main Sequence Stars, Star Clusters

Scientific paper

Near-IR observations of specific sites of high-mass star formation activity in the giant H II region/molecular cloud complex NGC 6334 are presented. The observations reveal many faint red sources around the sites of recent high-mass star formation. Most of these sources are associated with the NGC 6334 molecular cloud and are not Galactic field sources. The red objects in FIR-I are identified as belonging to a very young, compact cluster of about 1 pc in spatial extent. In FIR-V an unexpectedly large number of bright red sources are detected which have CO absorption at 2.3 microns. It is proposed that they form a hitherto unrecognized population of high-luminosity premain sequence objects. Evidence is also found in FIR-V that the molecular outflow from the already known high-mass protostar has triggered intermediate-mass star formation via interaction with the local interstellar medium. Evidence is presented that the value of the mass function in the solar neighborhood applies to star formation regions on scales as small as 1 pc and of ages less than 10 million yr.

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