Opt and NIR phot. follow-up of iPTF SNIa

We present optical and near-infrared (NIR, Y-, J-, H-band) observations of 42 Type Ia supernovae (SNe Ia) discovered by the untargeted intermediate Palomar Transient Factory...本文报道了42颗由非靶向巡天的中期帕洛马瞬变设施（Palomar Transient Factory，PTF）发现的Ia型超新星（Type Ia supernovae, SNe Ia）的光学及近红外（near-infrared, NIR，Y、J、H波段）观测资料。