Abstract
This is the first of a series of three papers devoted to the calibration of a few parameters of crucial importance in the modeling of the evolution of intermediate-mass stars, giving special attention to the amount of convective core overshoot. To this end we acquired deep V and R photometry for three globular clusters of the Large Magellanic Cloud, namely, NGC 2173, SL 556, and NGC 2155, in the age interval 1-3 Gyr. In this first paper, we describe the aim of the project and Very Large Telescope observations and data reduction and we make preliminary comparisons of the color-magnitude diagrams with both the Padova and Yonsei-Yale isochrones. Two following papers in this series present the results of a detailed analysis of these data, independently carried out by members of the Yale and Padova stellar evolution groups. This allows us to compare both sets of models and discuss their main differences, as well as the systematic effects that they would have on the determination of the ages and metallicities of intermediate-age single-stellar populations.
| Original language | English |
|---|---|
| Pages (from-to) | 742-753 |
| Number of pages | 12 |
| Journal | Astronomical Journal |
| Volume | 125 |
| Issue number | 2 1766 |
| DOIs | |
| Publication status | Published - 2003 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
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Testing intermediate-age stellar evolution models with VLT photometry of Large Magellanic Cloud clusters. I. The data. / Gallart, Carme; Zoccali, Manuela; Bertelli, Gianpaolo; Chiosi, Cesare; Demarque, Pierre; Girardi, Leo; Nasi, Emma; Woo, Jong Hak; Yi, Sukyoung.
In: Astronomical Journal, Vol. 125, No. 2 1766, 01.01.2003, p. 742-753.Research output: Contribution to journal › Article
TY - JOUR
T1 - Testing intermediate-age stellar evolution models with VLT photometry of Large Magellanic Cloud clusters. I. The data
AU - Gallart, Carme
AU - Zoccali, Manuela
AU - Bertelli, Gianpaolo
AU - Chiosi, Cesare
AU - Demarque, Pierre
AU - Girardi, Leo
AU - Nasi, Emma
AU - Woo, Jong Hak
AU - Yi, Sukyoung
PY - 2003/1/1
Y1 - 2003/1/1
N2 - This is the first of a series of three papers devoted to the calibration of a few parameters of crucial importance in the modeling of the evolution of intermediate-mass stars, giving special attention to the amount of convective core overshoot. To this end we acquired deep V and R photometry for three globular clusters of the Large Magellanic Cloud, namely, NGC 2173, SL 556, and NGC 2155, in the age interval 1-3 Gyr. In this first paper, we describe the aim of the project and Very Large Telescope observations and data reduction and we make preliminary comparisons of the color-magnitude diagrams with both the Padova and Yonsei-Yale isochrones. Two following papers in this series present the results of a detailed analysis of these data, independently carried out by members of the Yale and Padova stellar evolution groups. This allows us to compare both sets of models and discuss their main differences, as well as the systematic effects that they would have on the determination of the ages and metallicities of intermediate-age single-stellar populations.
AB - This is the first of a series of three papers devoted to the calibration of a few parameters of crucial importance in the modeling of the evolution of intermediate-mass stars, giving special attention to the amount of convective core overshoot. To this end we acquired deep V and R photometry for three globular clusters of the Large Magellanic Cloud, namely, NGC 2173, SL 556, and NGC 2155, in the age interval 1-3 Gyr. In this first paper, we describe the aim of the project and Very Large Telescope observations and data reduction and we make preliminary comparisons of the color-magnitude diagrams with both the Padova and Yonsei-Yale isochrones. Two following papers in this series present the results of a detailed analysis of these data, independently carried out by members of the Yale and Padova stellar evolution groups. This allows us to compare both sets of models and discuss their main differences, as well as the systematic effects that they would have on the determination of the ages and metallicities of intermediate-age single-stellar populations.
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U2 - 10.1086/345958
DO - 10.1086/345958
M3 - Article
VL - 125
SP - 742
EP - 753
JO - Astronomical Journal
JF - Astronomical Journal
SN - 0004-6256
IS - 2 1766
ER -