What question did this study set out to answer?

Determine the age and distance of the globular cluster ω Centauri by analyzing the component stellar properties of the detached eclipsing binary OGLEGC 17.

June 1, 2001The Astronomical JournalOpen Access

Cluster AgeS Experiment: The Age and Distance of the Globular Cluster ω Centauri Determined from Observations of the Eclipsing Binary OGLEGC 17

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Authors

ITIan B. ThompsonU.S. National Science Foundation JKJ. KałużnyHerzberg Institute of Astrophysics WPW. PychUniversity of Toronto

Discussion

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Implication

Observational analysis reveals the age and distance of globular cluster Omega Centauri using eclipsing binary OGLEGC 17, highlighting the need for refined stellar mass measurements.

Key Points

Determine the age and distance of the globular cluster ω Centauri by analyzing the component stellar properties of the detached eclipsing binary OGLEGC 17.
Analyzed photometric and spectroscopic observations of the detached eclipsing binary OGLEGC 17 to establish stellar masses, radii, and luminosities.
Applied theoretical age versus turnoff mass and age versus luminosity relations alongside an infrared surface brightness relation to determine cluster parameters.
Determined two independent cluster age estimates of 9.1 < t < 16.7 Gyr from the turnoff mass relation and 12.9 < t < 18.5 Gyr from the luminosity relation.
Derived a cluster distance of d = 5360 ± 300 pc and a distance modulus of (m - M)V = 14.05 ± 0.11 using the infrared surface brightness relation, with a ~10% discrepancy noted between differing color relations.

Cite This Study

Thompson et al. (2001) studied this question.

synapsesocial.com/papers/6a73610eac59fbf7804e56b1 https://doi.org/10.1086/321084

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Implication

Observational analysis reveals the age and distance of globular cluster Omega Centauri using eclipsing binary OGLEGC 17, highlighting the need for refined stellar mass measurements.

Cluster AgeS Experiment: The Age and Distance of the Globular Cluster ω Centauri Determined from Observations of the Eclipsing Binary OGLEGC 17

Discussion

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Implication

Key Points

Cite This Study

Cluster AgeS Experiment: The Age and Distance of the Globular Cluster ω Centauri Determined from Observations of the Eclipsing Binary OGLEGC 17

Discussion

Member takes

Implication

Key Points

Cite This Study

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