The Clusters AgeS Experiment (CASE). II. The Eclipsing Blue Straggler OGLEGC-228 in the Globular Cluster 47 Tuc
| dc.creator | Kaluzny, J. | |
| dc.creator | Thompson, I. B. | |
| dc.creator | Rucinski, S. M. | |
| dc.creator | Pych, W. | |
| dc.creator | Stachowski, G. | |
| dc.creator | Krzeminski, W. | |
| dc.creator | Burley, G. S. | |
| dc.date | 2007-04-26 | |
| dc.date.accessioned | 2026-07-07T11:20:23Z | |
| dc.date.available | 2026-07-07T11:20:23Z | |
| dc.description | We use photometric and spectroscopic observations of the eclipsing binary OGLEGC-228 (V228) to derive the masses, radii, and luminosities of the component stars. Based on measured systemic velocity, proper motion and distance, the system is a blue straggler member of the globular cluster 47 Tuc. Our analysis shows that V228 is a semi-detached Algol. We obtain M=1.512 +/- 0.022 Msun, R=1.357 +/- 0.019 Rsun, L=7.02 +/- 0.050 Lsun for the hotter and more luminous primary component and M=0.200 +/- 0.007 Msun, R=1.238 +/- 0.013 Rsun, L=1.57 +/- 0.09 Lsun for the Roche lobe filling secondary. | |
| dc.description | 19 pages, 5 figures, AJ, in press | |
| dc.identifier | https://arxiv.org/abs/0704.3508 | |
| dc.identifier | http://arxiv.org/abs/0704.3508 | |
| dc.identifier | Astron.J.134:541-546,2007 | |
| dc.identifier | doi:10.1086/519023 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/193947 | |
| dc.subject | Astrophysics | |
| dc.title | The Clusters AgeS Experiment (CASE). II. The Eclipsing Blue Straggler OGLEGC-228 in the Globular Cluster 47 Tuc | |
| dc.type | text |