Infrared luminosity functions for the young stellar population associated with the L1641 molecular cloud

Details Infrared luminosity functions for the young stellar population associated with the L1641 molecular cloud Infrared luminosity functions for the young stellar population associated with the L1641 molecular cloud

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...412..233s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 412, no. 1, p. 233-253.

Astronomy and Astrophysics

Astronomy

130

Early Stars, Infrared Radiation, Molecular Clouds, Pre-Main Sequence Stars, Stellar Luminosity, Accretion Disks, Astrometry, Color-Color Diagram, Interstellar Extinction, Sky Surveys (Astronomy), Stellar Magnitude

Scientific paper

Results are reported of a deep near-IR imaging survey which samples 0.77 sq deg of the L1641 star-forming complex and reaches 5 sigma limits at J (1.25 micron,), H (1.65 micron), and K (2.2 microns) of 16.8, 15.8, and 14.7 mag, respectively. A population of about 1500 stars spread throughout the cloud, seven small aggregates comprised of 10-50 stars whose typical projected surface densities exceed that of the distributed population by factors of 4-10, and a heretofore unknown, partially embedded dense cluster comprised of about 150 stars are identified. Analysis of the distribution of (J-H), (H-K), and (R-I) colors for these groups suggest that, in all cases, the stellar populations are dominated by solar-type PMS stars which appear to contain a mix of objects analogous to weak-line T Tauri stars. The present observed luminosity functions are based on reddening-corrected J-band magnitude.

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