Pal 13 blue stragglers and main-sequence binaries

We present high-precision VI photometry of stars from the middle of the giant branch to about 5mag below the main-sequence turnoff in the globular cluster Palomar 13 based on...本研究基于……，报道了球状星团帕洛玛13（Palomar 13）中，覆盖从巨星分支中部至主序转离点下方约5星等范围的恒星的高精度V-I测光（VI photometry）数据。