Prime Focus Spectrograph (PFS) for Subaru Telescope: Modeling of the 2D point spread function using commissioning data

Kota Hayashi, Neven Caplar, Kiyoto Yabe, Robert H. Lupton, James E. Gunn, Masahiro Takada, Naoyuki Tamura, Yuki Moritani, Satoshi Kawanomoto, Naoki Yasuda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Prime Focus Spectrograph is a next-generation spectroscopic instrument being installed on Subaru Telescope.The key to the success of its cosmological survey is accurate sky subtraction to extract galaxy emission lines from very bright night-sky emissions.We model the two-dimensional point spread function considering various effects such as optical aberrations in the spectrographs and vignetting on the telescope prime focal plane.We are developing models using commissioning data, and currently we have achieved 1 % precision in one-dimensional spectra for the aberration model.

Original languageEnglish (US)
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy X
EditorsJulia J. Bryant, Kentaro Motohara, Joel R. Vernet
PublisherSPIE
ISBN (Electronic)9781510675155
DOIs
StatePublished - 2024
EventGround-Based and Airborne Instrumentation for Astronomy X 2024 - Yokohama, Japan
Duration: Jun 16 2024Jun 21 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13096
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceGround-Based and Airborne Instrumentation for Astronomy X 2024
Country/TerritoryJapan
CityYokohama
Period6/16/246/21/24

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • point spread function
  • Prime Focus Spectrograph
  • sky subtraction

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