Calibration strategy for the SPICA/SAFARI instrument

被引：0

作者：

Shipman, Russell F. ^{[1
]}

Vandenbussche, Bart ^{[2
]}

Castillo-Dominguez, Edgar ^{[1
]}

Labiano, Alvaro ^{[3
]}

Jellema, Willem ^{[1
]}

Orlando, Angiola ^{[1
]}

机构：

[1] SRON, Landlevel 12, Groningen, Netherlands

[2] Katholieke Univ Leuven, Leuven, Belgium

[3] CSIC INTA, Ctr Astrobiol CAB, ESAC Campus, E-28692 Madrid, Spain

来源：

SPACE TELESCOPES AND INSTRUMENTATION 2020: OPTICAL, INFRARED, AND MILLIMETER WAVE | 2021年 / 11443卷

关键词：

Grating spectrometer; Fourier transform spectroscopy; TES bolometers;

D O I：

10.1117/12.2562071

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

SPICA is a mid to far infra-red space mission to explore the processes that form galaxies, stars and planets. SPICA/SAFARI is the far infrared spectrometer that provides near-background limited observations between 34 and 230 micrometers. The core of SAFARI consists of 4 grating modules, dispersing light onto 5 arrays of TES detectors per module. The grating modules provide low resolution (250) instantaneous spectra over the entire wavelength range. The high resolution (1500 to 12000) mode is accomplished by placing a Fourier Transform Spectrometer (FTS) in front of the gratings. Each grating module detector sees an interferogram from which the high resolution spectrum can be constructed. SAFARI data will be a convolution of complex spectral, temporal and spatial information. Along with spectral calibration accuracy of < 1 %, a relative flux calibration of 1% and an absolute flux calibration accuracy of 10% are required. This paper will discuss the calibration strategy and its impact on the instrument design of SAFARI

引用

页数：11