Results 11 to 20 of about 284 (182)

The Infrared Imaging Spectrograph (IRIS) for TMT: instrument overview [PDF]

open access: yesSPIE Proceedings, 2014
We present an overview of the design of IRIS, an infrared (0.84 - 2.4 micron) integral field spectrograph and imaging camera for the Thirty Meter Telescope (TMT). With extremely low wavefront error (<30 nm) and on-board wavefront sensors, IRIS will take advantage of the high angular resolution of the narrow field infrared adaptive optics system ...
Moore, Anna M.   +33 more
  +14 more sources

On the instrument profile of slit spectrographs [PDF]

open access: yesJournal of the Optical Society of America A, 2014
We derive an analytic expression for the instrument profile of a slit spectrograph, also known as the line spread function. While this problem is not new, our treatment relies on the operatorial approach to the description of diffractive optical systems, which provides a general framework for the analysis of the performance of slit spectrographs under ...
Casini, R., de Wijn, A. G.
openaire   +3 more sources

The Cosmic Origins Spectrograph: on-orbit instrument performance [PDF]

open access: yesAstrophysics and Space Science, 2011
The Cosmic Origins Spectrograph (COS) was installed in the Hubble Space Telescope in May, 2009 as part of Servicing Mission 4 to provide high sensitivity, medium and low resolution spectroscopy at far- and near-ultraviolet wavelengths (FUV, NUV). COS is the most sensitive FUV/NUV spectrograph flown to date, spanning the wavelength range from 900Å to ...
Osterman, S.   +33 more
openaire   +2 more sources

The NIR spectrograph for the new SOXS instrument at the NTT [PDF]

open access: yesGround-based and Airborne Instrumentation for Astronomy VII, 2018
We present the NIR spectrograph of the Son Of XShooter (SOXS) instrument for the ESO-NTT telescope at La Silla (Chile). SOXS is a R~4,500 mean resolution spectrograph, with a simultaneously coverage from about 0.35 to 2.00 μm. It will be mounted at the Nasmyth focus of the NTT. The two UV-VIS-NIR wavelength ranges will be covered by two separated arms.
Aliverti, Matteo   +49 more
openaire   +4 more sources

A spectrograph instrument concept for the Prime Focus Spectrograph (PFS) on Subaru Telescope [PDF]

open access: yesSPIE Proceedings, 2012
We describe the conceptual design of the spectrograph opto-mechanical concept for the SuMIRe Prime Focus Spectrograph (PFS) being developed for the SUBARU telescope. The SuMIRe PFS will consist of four identical spectrographs, each receiving 600 fibers from a 2400 fiber robotic positioner at the prime focus.
Vives, Sébastien   +12 more
openaire   +2 more sources

Gemini infrared multi-object spectrograph: instrument overview [PDF]

open access: yesGround-based and Airborne Instrumentation for Astronomy VII, 2018
The Gemini Infrared Multi-Object Spectrograph (GIRMOS) is a powerful new instrument being built to facility-class standards for the Gemini telescope. It takes advantage of the latest developments in adaptive optics and integral field spectrographs. GIRMOS will carry out simultaneous high-angular-resolution, spatially-resolved infrared ($1-2.4$ $μ$m ...
Sivanandam, Suresh   +29 more
openaire   +2 more sources

Instrument Calibration of the Interface Region Imaging Spectrograph (IRIS) Mission [PDF]

open access: yesSolar Physics, 2018
The Interface Region Imaging Spectrograph (IRIS) is a NASA small explorer mission that provides high-resolution spectra and images of the Sun in the 133 - 141 nm and 278 - 283 nm wavelength bands. The IRIS data are archived in calibrated form and made available to the public within seven days of observing.
J.-P. Wülser   +17 more
openaire   +4 more sources

The Infra-Red Prism Spectrograph as a Precision Instrument [PDF]

open access: yesReview of Scientific Instruments, 1942
An investigation of the working conditions of an infra-red spectrometer of the recording type has resulted in techniques of operation which have increased the precision of the measurements attainable and has permitted an appraisal of the magnitudes of the variations in the resulting data which may still be expected.
Oetjen, R. A.   +2 more
openaire   +2 more sources

Spectrograph design for the Asgard/BIFROST spectro-interferometric instrument for the VLTI

open access: yesOptical and Infrared Interferometry and Imaging VIII, 2022
SPIE conference proceedings ...
Chhabra, S   +6 more
openaire   +3 more sources

Prime Focus Spectrograph (PFS): the prime focus instrument [PDF]

open access: yesGround-based and Airborne Instrumentation for Astronomy VIII, 2020
© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE). We gratefully acknowledge support from the Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST) "Subaru Measurements of Images and Redshifts (SuMIRe)", CSTP, Japan for PFS project. The work in ASIAA, Taiwan is supported by the Academia Sinica of Taiwan.
Wang, Shiang-Yu   +26 more
openaire   +2 more sources

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