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

Byeong Gon Park; Hwankyung Sung; Michael S. Bessell; Yong Hee Kang

doi:10.1086/301459

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

Byeong Gon Park^*, Hwankyung Sung, Michael S. Bessell, Yong Hee Kang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

78 Citations (Scopus)

Abstract

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 ≤ log m ≤ 0.8.

Original language	English
Pages (from-to)	894-908
Number of pages	15
Journal	Astronomical Journal
Volume	120
Issue number	2
DOIs	https://doi.org/10.1086/301459
Publication status	Published - Aug 2000

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title = "The pre-main-sequence stars and initial mass function of NGC 2264",

abstract = "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 ≤ log m ≤ 0.8.",

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author = "Park, {Byeong Gon} and Hwankyung Sung and Bessell, {Michael S.} and Kang, {Yong Hee}",

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doi = "10.1086/301459",

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T1 - The pre-main-sequence stars and initial mass function of NGC 2264

AU - Park, Byeong Gon

AU - Sung, Hwankyung

AU - Bessell, Michael S.

AU - Kang, Yong Hee

PY - 2000/8

Y1 - 2000/8

N2 - 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 ≤ log m ≤ 0.8.

AB - 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 ≤ log m ≤ 0.8.

KW - Individual (NGC 2264) - stars

KW - Open clusters and associations

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U2 - 10.1086/301459

DO - 10.1086/301459

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VL - 120

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JO - Astronomical Journal

JF - Astronomical Journal

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ER -

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

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