A combined telescope and spectrograph of high efficiency
نویسندگان
چکیده
منابع مشابه
Space telescope Imaging Spectrograph
We acquired spectra of 24 LMC PNe in the 1150–3000 Å range in order to determine carbon and other ionic abundances. The sample more than doubles the number of LMC PNe with good quality UV spectra in this wavelength range, and whose optical images are available in the HST archive. The Space Telescope Imaging Spectrograph was used with a very large aperture to obtain virtually slit-less spectra, ...
متن کاملA Multi-object Double Spectrograph for the Large Binocular Telescope
We are building a Multi-Object Double Spectrograph for the Large Binocular Telescope. The main themes of our planned research with the instrument are the formation and evolution of galaxies and their nuclei and the evolution of large-scale structure in the universe, although we expect that the spectrograph will be used for many other varieties of programs as well. The science goals for the inst...
متن کاملDesign tradeoffs for a high spectral resolution mid-infrared echelle spectrograph on the Thirty-Meter Telescope
A feasibility design study was undertaken to assess the requirements of a mid-infrared echelle spectrograph (MIRES) with a resolving power of 120,000 and its associated mid-infrared adaptive optics (MIRAO) system on the Thirty-Meter Telescope. Our baseline design incorporates a 2Kx2K Si:As array or array mosaic for the spectrograph and a 1Kx1K Si:As array for the slit viewer. Various tradeoffs ...
متن کاملMeasurement of Cosmic Shear with the Space Telescope Imaging Spectrograph
Weak lensing by large-scale structure allows a direct measure of the dark matter distribution. We have used parallel images taken with the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope to measure weak lensing, or cosmic shear. We measure the shapes of 26036 galaxies in 1292 STIS fields and measure the shear variance at a scale of 0.51 arcminutes. The charge transfer ...
متن کاملGMTNIRS – The High Resolution Near-IR Spectrograph for the Giant Magellan Telescope
We present a conceptual design for a powerful, high-resolution near-infrared spectrograph for the Giant Magellan Telescope (GMT). This instrument, the Giant Magellan Telescope Near-Infrared Spectrograph (GMTNIRS), uses silicon immersion gratings as the primary dispersing elements. The design has two modules, one for 1.1-2.4 m for use under native seeing conditions and one for 3-5.5 m to be used...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of the Pacific
سال: 1984
ISSN: 0004-6280,1538-3873
DOI: 10.1086/131342