Prime focus spectrograph (PFS) for the Subaru Telescope: 2D modeling of the point spread function

Neven Caplar; Robert Lupton; James E. Gunn; Hassan Siddiqui; Paul Price; Craig Loomis; Arnaud Le Fur; Joshua E. Meyers

doi:10.1117/12.2629364

29 August 2022 Prime focus spectrograph (PFS) for the Subaru Telescope: 2D modeling of the point spread function

Neven Caplar, Robert Lupton, James E. Gunn, Hassan Siddiqui, Paul Price, Craig Loomis, Arnaud Le Fur, Joshua E. Meyers

Proceedings Volume 12184, Ground-based and Airborne Instrumentation for Astronomy IX; 1218470 (2022) https://doi.org/10.1117/12.2629364
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

Prime Focus Spectrograph is a state-of-the-art multifiber spectrograph being installed on the Subaru telescope. High-quality sky subtraction is of crucial importance for its successful operation. Here we describe the status of the development of modeling algorithms for point spread function determination and subtraction of skylines. Defocused data taken with dedicated lamps allows us to determine the illumination properties of individual fibers, and to determine wavefront aberrations that are present in the instrument. Based on those inputs, we are able to model the point spread function in 2D and achieve sub 1% subtraction quality for significant parts of the wavelength range covered by the available data.

Citation Download Citation

Neven Caplar, Robert Lupton, James E. Gunn, Hassan Siddiqui, Paul Price, Craig Loomis, Arnaud Le Fur, and Joshua E. Meyers "Prime focus spectrograph (PFS) for the Subaru Telescope: 2D modeling of the point spread function", Proc. SPIE 12184, Ground-based and Airborne Instrumentation for Astronomy IX, 1218470 (29 August 2022); https://doi.org/10.1117/12.2629364

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available