Blue Straggler Stars in Dwarf Spheroidal Galaxies

被引：0

作者：

Zhao, Z. ^{[1
,2
]}

Okamoto, S. ^{[3
]}

Arimoto, N. ^{[1
,2
]}

Aoki, W. ^{[2
]}

Kodama, T. ^{[2
,4
]}

机构：

[1] Grad Univ Adv Studies, Dept Astron Sci, Hayama, Kanagawa 2400193, Japan

[2] Natl Astron Observ, Mitaka, Tokyo 1818588, Japan

[3] Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China

[4] Natl Astron Observ Japan, Subaru Telescope, Hilo, HI 96720 USA

来源：

GALACTIC ARCHAEOLOGY: NEAR-FIELD COSMOLOGY AND THE FORMATION OF THE MILKY WAY | 2012年 / 458卷

基金：

瑞士国家科学基金会;

关键词：

STELLAR POPULATION;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

With our homogeneous photometric data of 8 dwarf spheroidal galaxies (dSphs, -9.5 < M-V < -4.9) obtained by Subaru / Suprime-Cam, we have confirmed the anti-correlation between F-BSS and M-V found by Momany et al. (2007). We have also derived luminosity functions and radial distributions of blue straggler stars (BSSs) of three classical dSphs, Draco, Ursa Minor (UMi) and Sextans. The results suggest that BSSs in these dSphs were mainly formed from mass transfer in primordial binaries.

引用

页码：349 / +

页数：2

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