publication . Article . Preprint . Other literature type . 2018

Studying the ultraviolet spectrum of the first spectroscopically confirmed supernova at redshift two

Rafe Schindler; Christopher J. Miller; Kyler Kuehn; A. V. Filippenko; Eric Suchyta; D. A. Finley; J. Carretero; F. Sobreira; M. E. C. Swanson; D. Brooks; ...
Open Access
  • Published: 08 Feb 2018
  • Publisher: eScholarship, University of California
Abstract
We present observations of DES16C2nm, the first spectroscopically confirmed hydrogen-free superluminous supernova (SLSN-I) at redshift z~2. DES16C2nm was discovered by the Dark Energy Survey (DES) Supernova Program, with follow-up photometric data from the Hubble Space Telescope, Gemini, and the European Southern Observatory Very Large Telescope supplementing the DES data. Spectroscopic observations confirm DES16C2nm to be at z=1.998, and spectroscopically similar to Gaia16apd (a SLSN-I at z=0.102), with a peak absolute magnitude of U=-22.26$\pm$0.06. The high redshift of DES16C2nm provides a unique opportunity to study the ultraviolet (UV) properties of SLSNe-I...
Subjects
arXiv: Astrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics::Galaxy AstrophysicsAstrophysics::Solar and Stellar Astrophysics
free text keywords: distance scale, general [supernovae], individual [supernovae], surveys, astro-ph.HE, astro-ph.CO, astro-ph.GA, astro-ph.SR, Astronomy & Astrophysics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Physical Chemistry, Physical Chemistry (incl. Structural), Science & Technology, Physical Sciences, Astronomy & Astrophysics, distance scale, supernovae: general, supernovae: individual (DES16C2nm), surveys, HUBBLE-SPACE-TELESCOPE, SUPERLUMINOUS SUPERNOVAE, LUMINOUS SUPERNOVAE, PAIR-INSTABILITY, LIGHT CURVES, TRANSIENT, EMISSION, GALAXIES, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics - Solar and Stellar Astrophysics, Space and Planetary Science, Astronomy and Astrophysics, supernovae: individual, supernovae: general, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], QB, Distâncias extragalácticas, Supernova (Estrela), Levantamentos, Extragalactic distances, Supernovae, [ PHYS.ASTR ] Physics [physics]/Astrophysics [astro-ph], individual (DES16C2mm) [supernovae], RCUK, STFC, ST/N000688/1, AST-1311862, AST-1518052, Very Large Telescope, Redshift, Supernova, Astrophysics, Absolute magnitude, Large Synoptic Survey Telescope, Luminosity, Physics, Light curve, Galaxy
Funded by
NSF| Collaborative Research: The Dark Energy Survey Data Management Operations
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1138766
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
EC| SPCND
Project
SPCND
Supernovae: Physics and Cosmology in the Next Decade
  • Funder: European Commission (EC)
  • Project Code: 615929
  • Funding stream: FP7 | SP2 | ERC
,
EC| COGS
Project
COGS
Capitalizing on Gravitational Shear
  • Funder: European Commission (EC)
  • Project Code: 240672
  • Funding stream: FP7 | SP2 | ERC
,
NSF| Type Ia Supernovae in the Near Infrared - Clearing a Path through the Dust
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1311862
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Astronomical Sciences
,
EC| TESTDE
Project
TESTDE
Testing the Dark Energy Paradigm and Measuring Neutrino Mass with the Dark Energy Survey
  • Funder: European Commission (EC)
  • Project Code: 291329
  • Funding stream: FP7 | SP2 | ERC
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