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A Spectroscopically Complete Census of Faint Transients Observed by the Young Supernova Experiment

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Approved LLPs

Principle Investigator: Wynn Jacobson-Galán, Northwestern University, Department of Physics and Astronomy, Evanston IL, USA

Program Summary:

New and improved time-domain surveys like the Young Supernova Experiment (YSE) provide an unparalleled opportunity to identify both familiar and rare transients only a few days after explosion. However, the volumetric rate of intrinsically faint (M_peak > -16 mag) transient classes such as LBV/ LRN eruptions, low luminosity core-collapse supernovae, and exotic thermonuclear explosions (e.g., Calcium-rich, Type Iax) is not well constrained given the detection limitations of spectroscopic follow- up programs for bright transient surveys. Here we propose a Gemini Large and Long Program (LLP) to obtain spectroscopic observations of faint events in our volume-limited sample of YSE-discovered transients. Compared to other sky surveys, YSE is an unprecedented resource for discovering faint events that are ideally suited for classification with Gemini. We propose to use a total of 300 hrs (50hrs/ semester) spread across Gemini North and South to classify and monitor YSE transients at D < 250 Mpc. In combination with our other spectroscopic resources, this LLP will lead to the first spectroscopically complete, volume-limited census of low luminosity transients in the local universe./p>


  • Raffaella Margutti: Northwestern University
  • Giacomo Terreran: Northwestern University
  • Michael Stroh: Northwestern University
  • Adriano Baldeschi: Northwestern University
  • Kate Alexander: Northwestern University
  • Deanne Coppejans: Northwestern University
  • Lindsay DeMarchi: Northwestern University
  • David Matthews: Northwestern University
  • Aprajita Hajela: Northwestern University
  • Ryan Foley: UC Santa Cruz
  • David Jones: UC Santa Cruz
  • Charles Kilpatrick: Northwestern University
  • Georgios Dimitriadis: UC Santa Cruz
  • Cesar Rojas-Bravo: UC Santa Cruz
  • David Coulter: UC Santa Cruz
  • Matt Siebert: UC Santa Cruz
  • Samaporn Tinyanont: UC Santa Cruz
  • Kirsty Taggart: UC Santa Cruz
  • K. Decker French: University of Illinois at Urbana- Champaign
  • Katie Auchettl: University of Melbourne
  • Alex Gagliano: University of Illinois at Urbana-Champaign
  • Gautham Narayan: University of Illinois at Urbana-Champaign
  • Jens Hjorth: University of Copenhagen
  • Enrico Ramirez-Ruiz: UC Santa Cruz
  • Maria Drout: University of Toronto
  • Armin Rest: STSci
  • Christa Gall: University of Copenhagen
  • Yen-Chen Pan: National Central University
  • Sandra Raimundo: University of Copenhagen
  • Radoslaw Wojtak: University of Copenhagen
  • Charlotte Angus: University of Copenhagen
  • Luca Izzo: University of Copenhagen
A Spectroscopically Complete Census of Faint Transients Observed by the Young Supernova Experiment | Gemini Observatory


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