Carnegie Supernova Project-II: Near-infrared Spectroscopic Diversity of Type II Supernovae

14 Oct 2019 Davis S. Hsiao E. Y. Ashall C. Hoeflich P. Phillips M. M. Marion G. H. Kirshner R. P. Morrell N. Sand D. J. Burns C. Contreras C. Stritzinger M. Anderson J. P. Baron E. Diamond T. Gutierrez C. P. Hamuy M. Holmbo S. Kasliwal M. M. Krisciunas K. Kumar S. Lu J. Pessi P. J. Piro A. L. Prieto J. L. Shahbandeh M. Suntzeff N. B.

We present $81$ near-infrared (NIR) spectra of $30$ Type II supernovae (SNe II) from the Carnegie Supernova Project-II (CSP-II), the largest such dataset published to date. We identify a number of NIR features and characterize their evolution over time... (read more)

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  • HIGH ENERGY ASTROPHYSICAL PHENOMENA
  • SOLAR AND STELLAR ASTROPHYSICS