A search for near-infrared counterparts of IRAS embedded sources in the M17 SW giant molecular cloud

Details A search for near-infrared counterparts of IRAS embedded sources in the M17 SW giant molecular cloud A search for near-infrared counterparts of IRAS embedded sources in the M17 SW giant molecular cloud

Dec 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...335..803e&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 335, Dec. 15, 1988, p. 803-813.

Astronomy and Astrophysics

Astronomy

5

H Ii Regions, Infrared Astronomy Satellite, Molecular Clouds, Near Infrared Radiation, Pre-Main Sequence Stars, Color-Color Diagram, Infrared Sources (Astronomy), Interstellar Matter, Orion Nebula

Scientific paper

Wide-field near-infrared and blue band plates of the region containing the M17 giant molecular cloud complex have been blinked to locate bright near-infrared stars that may be embedded in the M17 SW giant molecular cloud. Twenty such stars coincided with the positions of IRAS point sources that appeared embedded based on color-color diagrams. Some of these stars may be the sources of the infrared luminosities. Of the 20 stars, seven were too faint to appear on the B band plate. The optical magnitudes and colors determined from the plate image diameters were measured for the other 13 coincident stars; they are most likely upper main-sequence or pre-main-sequence stars with extinctions of 7 mag. The IRAS luminosity-temperature diagram indicates that the embedded sources in M17 are more massive than those in the Orion cloud.

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