作者: R. Lunnan , R. Chornock , E. Berger , T. Laskar , W. Fong
DOI: 10.1088/0004-637X/787/2/138
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摘要: We present optical spectroscopy and optical/near-IR photometry of 31 host galaxies hydrogen-poor superluminous supernovae (SLSNe), including 15 events from the Pan-STARRS1 Medium Deep Survey. Our sample spans redshift range 0.1 ~ -17.3 mag), low stellar mass ( 2 x 10^8 M_sun) population, with a high median specific star formation rate Gyr^-1). The metallicity our spectroscopic is low, 12 + log(O/H}) 8.35 0.45 Z_sun, although at least one galaxy has solar metallicity. H-poor SLSNe are statistically distinct hosts GOODS core-collapse SNe (which cover similar range), but resemble long-duration gamma-ray bursts (LGRBs) in terms mass, SFR, sSFR This result indicates that environmental causes leading to massive stars forming either or LGRBs similar, particular more effectively formed environments. speculate key ingredient large core angular momentum, rapidly-spinning magnetar an accreting black hole LGRBs.