Narrow line Seyfert 1 galaxies from SDSS-DR12

We present a new catalog of narrow-line Seyfert 1 (NLSy1) galaxies from the Sloan Digital Sky Survey Data Release 12 (SDSS DR12). This was obtained by a systematic analysis...我们报道了一套源自斯隆数字巡天第12次数据发布（Sloan Digital Sky Survey Data Release 12，SDSS DR12）的全新窄线塞弗特1型星系（narrow-line Seyfert 1，NLSy1）星表。该星表系通过系统性分析得到。