JK Photometry of globular clusters M15 & M56

Infrared JKs-band photometry of the Galactic globular clusters M15 and, for the first time, M56 is presented. We estimate the reddening [E(B-V) = 0.18 {=/-} 0.08 mag] and...本文提供了银河球状星团M15的红外J、Ks波段测光（photometry）数据，并首次报道了球状星团M56的该波段测光结果。我们估算了其红化值[E(B-V)=0.18±0.08星等]，并……