Imperial College London

Professor David van Dyk

Faculty of Natural SciencesDepartment of Mathematics

Chair in Statistics
 
 
 
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Contact

 

+44 (0)20 7594 8574d.van-dyk Website

 
 
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Assistant

 

Mr David Whittaker +44 (0)20 7594 8481

 
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Location

 

539Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Jeffery:2016:2/79,
author = {Jeffery, EJ and von, Hippel T and van, Dyk D and Stenning, DC and Robinson, E and Stein, N and Jefferys, WH},
doi = {2/79},
journal = {Astrophysical Journal},
title = {A BAYESIAN ANALYSIS OF THE AGES OF FOUR OPEN CLUSTERS},
url = {http://dx.doi.org/10.3847/0004-637X/828/2/79},
volume = {828},
year = {2016}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - In this paper we apply a Bayesian technique to determine the best fit of stellar evolution modelsto find the main sequence turn off age and other cluster parameters of four intermediate-age openclusters: NGC 2360, NGC 2477, NGC 2660, and NGC 3960. Our algorithm utilizes a Markov chainMonte Carlo technique to fit these various parameters, objectively finding the best fit isochrone foreach cluster. The result is a high precision isochrone fit. We compare these results with the those oftraditional “by eye” isochrone fitting methods. By applying this Bayesian technique to NGC 2360,NGC 2477, NGC 2660, and NGC 3960 we determine the ages of these clusters to be 1.35 ± 0.05,1.02 ± 0.02, 1.64 ± 0.04, and 0.860 ± 0.04 Gyr, respectively. The results of this paper continue oureffort to determine cluster ages to higher precision than that offered by these traditional methods ofisochrone fitting.
AU - Jeffery,EJ
AU - von,Hippel T
AU - van,Dyk D
AU - Stenning,DC
AU - Robinson,E
AU - Stein,N
AU - Jefferys,WH
DO - 2/79
PY - 2016///
SN - 1538-4357
TI - A BAYESIAN ANALYSIS OF THE AGES OF FOUR OPEN CLUSTERS
T2 - Astrophysical Journal
UR - http://dx.doi.org/10.3847/0004-637X/828/2/79
UR - http://hdl.handle.net/10044/1/34011
VL - 828
ER -