Evolutionary synthesis of simple stellar populations - Colours and indices

被引：57

作者：

Kurth, OM ^{[1
]}

Fritze-von Alvensleben, U ^{[1
]}

Fricke, KJ ^{[1
]}

机构：

[1] Univ Sternwarte Gottingen, D-37083 Gottingen, Germany

来源：

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES | 1999年 / 138卷 / 01期

关键词：

Galaxy : globular cluster; open clusters galaxies : starclusters; M; 31; evolution;

D O I：

10.1051/aas:1999499

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We construct evolutionary synthesis models for simple stellar populations using the evolutionary tracks from the Padova group (1993: 1994), theoretical colour calibrations from Lejeune et al. (1997, 1998) and fit functions for stellar atmospheric indices from Worthey et al. (1994). A Monte-Carlo technique allows us to obtain a smooth time evolution of both broad band colours in UBVRIK and a series of stellar absorption features for Single Burst Stellar Populations (SSPs), We present colours and indices for SSPs with ages from 1 10(9) yrs to 1.6 10(10) yrs and metallicities [M/H] = -2.3, -1.7, -0.7, -0.4, 0.0 and 0.4. Model colours and indices at an age of about a Hubble time are in good agreement with observed colours and indices of the Galactic and M 31 GCs.

引用

页码：19 / 30

页数：12

共 46 条

[1] THE FORMATION OF GLOBULAR-CLUSTERS IN MERGING AND INTERACTING GALAXIES [J].