SDSS photometry in the field of L1457

We present a spectroscopic and photometric survey of a sample of field stars in the region of the molecular cloud L1457. High-quality coude feed spectra, together with five-band...我们针对分子云L1457区域内的场星（field stars）样本开展了一项光谱学与光度学巡天研究，获取了高质量的库德馈入光谱以及五波段……