The Mid-Infrared Instrument for the James Webb Space Telescope, VI: The Medium Resolution Spectrometer
Artikel i vetenskaplig tidskrift, 2015
We describe the design and performance of the Medium Resolution Spectrometer (MRS) for the JWST-MIRI instrument. The MRS incorporates four coaxial spectral channels in a compact opto-mechanical layout that generates spectral images over fields of view up to 7.7 x 7.7 '' in extent and at spectral resolving powers ranging from 1300 to 3700. Each channel includes an all-reflective integral field unit (IFU): an "image slicer" that reformats the input field for presentation to a grating spectrometer. Two 1024 x 1024 focal plane detector arrays record the output spectral images with an instantaneous spectral coverage of approximately one third of the full wavelength range of each channel. The full 5-28.5 mu m spectrum is then obtained by making three exposures using gratings and pass-band-determining filters that are selected using just two three-position mechanisms. The expected on-orbit optical performance is presented, based on testing of the MIRI Flight Model and including spectral and spatial coverage and resolution. The point spread function of the reconstructed images is shown to be diffraction limited and the optical transmission is shown to be consistent with the design expectations.
Thermal-Expansion Measurements
Optical Materials
Temperature
Rmany
Författare
M. Wells
Royal Observatory
J. W. Pel
Rijksuniversiteit Groningen
A. Glasse
Royal Observatory
G. S. Wright
Royal Observatory
G. Aitink-Kroes
R. Azzollini
Centro de Astrobiologia (CAB)
Dublin Institute for Advanced Studies
S. Beard
Royal Observatory
B. R. Brandl
Universiteit Leiden
A. Gallie
Royal Observatory
V. C. Geers
Dublin Institute for Advanced Studies
A. M. Glauser
Eidgenössische Technische Hochschule Zürich (ETH)
P. Hastings
Royal Observatory
T. Henning
Max-Planck-Gesellschaft
R. Jager
NOVA
Kay Justtanont
Chalmers, Rymd- och geovetenskap, Radioastronomi och astrofysik
B. Kruizinga
Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek (TNO)
F. Lahuis
Netherlands Institute for Space Research (SRON)
Universiteit Leiden
D. Lee
Royal Observatory
I. Martinez-Delgado
Centro de Astrobiologia (CAB)
J. R. Martinez-Galarza
Harvard-Smithsonian Center for Astrophysics
Universiteit Leiden
M. Meijers
NOVA
J. E. Morrison
University of Arizona
F. Muller
Max-Planck-Gesellschaft
T. Nakos
Universiteit Gent
B. O'Sullivan
PO3 5PU
A. Oudenhuysen
P. Parr-Burman
Royal Observatory
E. Pauwels
NOVA
R. R. Rohloff
Max-Planck-Gesellschaft
E. Schmalzl
Universiteit Leiden
J. Sykes
University Of Leicester
M. P. Thelen
California Institute of Technology (Caltech)
E. F. van Dishoeck
Universiteit Leiden
B. Vandenbussche
KU Leuven
L. B. Venema
H. Visser
Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek (TNO)
Lbfm Waters
Netherlands Institute for Space Research (SRON)
Universiteit Van Amsterdam
D. Wright
SGT Inc.
Publications of the Astronomical Society of the Pacific
0004-6280 (ISSN) 1538-3873 (eISSN)
Vol. 127 953 646-664Ämneskategorier (SSIF 2011)
Astronomi, astrofysik och kosmologi
Infrastruktur
Onsala rymdobservatorium
DOI
10.1086/682281