Submission Type

Poster

Start Date

April 2021

Abstract

The purpose of this project was to study the open star cluster NGC2204 using images taken at Kitt Peak National Observatory using the WIYN 0.9m telescope. These images were analyzed photometrically with the intention of determining the reddening, metallicity, age, and distance modulus of the star cluster. Each image was analyzed using software that determined the point spread function and applied that function to determine the magnitude of each star in that image. These magnitudes were taken for each filter, UBVRI, and then combined and averaged to create a single catalog. Standard stars, taken on the same night, were used to derive transformation coefficients that were applied to our data to bring them onto the standard system. Our data set was then fit to a Stellar Evolution model and plotted on in an HR diagram to determine the age of the cluster. Color-Color diagrams were also created to determine the reddening and metallicity of the cluster.

Comments

Sponsored by Aaron Steinhauer.

Authors gratefully acknowledge funding from the National Science Foundation in conjunction with the Research Foundation of SUNY, as well as support from the SUNY Geneseo department of Physics and Astronomy.

Link to the WIYN Open Cluster Study page: https://users.astro.ufl.edu/~ata/wocs/

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Apr 26th, 12:00 AM

382— WIYN Open Cluster Study: UBVRI Photometry of NGC 2204

The purpose of this project was to study the open star cluster NGC2204 using images taken at Kitt Peak National Observatory using the WIYN 0.9m telescope. These images were analyzed photometrically with the intention of determining the reddening, metallicity, age, and distance modulus of the star cluster. Each image was analyzed using software that determined the point spread function and applied that function to determine the magnitude of each star in that image. These magnitudes were taken for each filter, UBVRI, and then combined and averaged to create a single catalog. Standard stars, taken on the same night, were used to derive transformation coefficients that were applied to our data to bring them onto the standard system. Our data set was then fit to a Stellar Evolution model and plotted on in an HR diagram to determine the age of the cluster. Color-Color diagrams were also created to determine the reddening and metallicity of the cluster.

 

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