SIMBAD references

2000AJ....120..894P - Astron. J., 120, 894-908 (2000/August-0)

The pre-main-sequence stars and initial mass function of NGC 2264.


Abstract (from CDS):

UBVRI and Hα CCD photometry has been performed in the southern region of NGC 2264 around the Cone Nebula. A nearly complete list of pre-main-sequence (PMS) members in the cluster has been made from the compilation of Hα emission stars identified in this study plus those selected in previous investigations, together with stars with X-ray emission. Using the H-R diagram, we tested a set of four PMS evolution models based on the PMS age and age spread estimate for the cluster and the mass-age relationship among individual stars. The resultant initial mass function (IMF) is in good agreement with the field star IMF of the solar neighborhood, with an IMF slope Γ=-1.7 in the mass range 0.3≤logm≤0.8.

Abstract Copyright:

Journal keyword(s): Galaxy: Open Clusters and Associations: Individual: NGC Number: NGC 2264 - Stars: Pre-Main-Sequence

Nomenclature: Table 1: Cl* NGC 2264 PSB NNN (Nos 1-209).

CDS comments: Table 1 : HD 262104 misprint for 262014

Simbad objects: 219

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