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Prime Focus Spectrograph (PFS) for Subaru Telescope: the algorithm to optimize pointing centers for open-use programs

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He, Wanqiu ; Ishigaki, Miho N. ; Tanka, Masayuki ; Yabe, Kiyoto ; Onodera, Masato ; Jeschke, Eric ; Moritani, Yuki ; Takagi, Yuhei ; Tamura, Naoyuki ; Fabricius, Maximilian ; Reinecke, Martin
Número total de Autores: 11
Tipo de documento: Artigo Científico
Fonte: GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY X; v. 13096, p. 8-pg., 2024-01-01.
Resumo

Prime Focus Spectrograph (PFS) is a next generation instrument mounted on the Subaru telescope. It is a fiberfed multiplex system covering a wide field of view (1.3 degree in diameter), which enables to acquire approximately 2400 spectra of science objects simultaneously. In order to efficiently use fibers, open-use programs will share fibers with each other (the fiber-sharing mode). Here, we introduce the PFS Pointing Planner (PPP), the tool to optimize the pointing centers. Its goal is to efficiently observe all allocated time of science programs while assigning as many fibers as possible to science targets on each pointing. The tool incorporates a flexible weight scheme which considers factors such as the science priority, surface density and exposure time. We present the simulation results of PPP with mock science programs, and discuss its performance in diverse science cases. (AU)

Processo FAPESP: 11/51680-6 - Explorando o universo: da formação de galáxias aos planetas tipo-Terra, com o Telescópio Gigante Magellan
Beneficiário:Laerte Sodré Junior
Modalidade de apoio: Auxílio à Pesquisa - Projetos Especiais