Spectra of SN 2017eaw 545 & 900 days after explosion
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SN 2017eaw, the tenth supernova observed in NGC6946, was a normal Type II-P supernova with an estimated 11-13M{sun} red supergiant progenitor. Here we present nebular-phase...
SN 2017eaw是在NGC 6946中观测到的第10颗超新星,为一颗正常的II-P型超新星(Type II-P supernova),其前身星为质量约11至13倍太阳质量的红超巨星(red supergiant)。本文呈现了该天体的星云相阶段的……



