Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992phdt.........8p&link_type=abstract
Ph.D. Thesis Washington Univ., Seattle.
Astronomy and Astrophysics
Astronomy
3
Infrared Stars, Near Infrared Radiation, Open Clusters, Sky Surveys (Astronomy), Stellar Luminosity, Color-Color Diagram, Infrared Astronomy, Nebulae, Star Formation
Scientific paper
We present the results of a large scale near infrared (J, H, K) survey of the star forming region NGC 2264. The survey covers 48' (Dec) x 27' (RA) with a completeness limit of 15.5, 14.5 and 14 magnitudes at J, H, and K respectively. Complementary observations of NGC 2023, NGC 2068, and NGC 7023 are also discussed. Young stars in NGC 2264 are concentrated in two clusters. The northern cluster is highlighted by the bright star S Mon. The infrared source NGC 2264 IRS, the molecular outflow NGC 2264D and the Cone Nebula are associated with the southern cluster. The northern cluster is divided into two subclusters, the southern cluster has three subclusters. The luminosity functions (LF's) of NGC 2264 subclusters have slopes in the range 0.28-0.30. This is also case for NGC 2068. NGC 2023's LF is shallower (0.21). There is a break in the LF of NGC 7023 around K = 10.5 magnitudes. All LF's are consistent with a Salpeter IMF and a Miller-Scalo IMF. For NGC 7023, we obtain a better agreement with a Miller-Scalo IMF. The differences in LF can be attributed to cluster ages. NGC 2023 is approximately one million years old. NGC 7023 is old enough for its LF to be consistent with a cluster of main sequence stars. The NGC 2264 clusters and NGC 2068 have ages intermediate between NGC 2023 and NGC 7023. A large fraction of LF's have turn-offs at their faint end.
No associations
LandOfFree
A near-infrared survey of the star forming region NGC 2264 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A near-infrared survey of the star forming region NGC 2264, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A near-infrared survey of the star forming region NGC 2264 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1140947