3D Spectroscopy in Astronomy (Canary Islands Winter School by Evencio Mediavilla, Santiago Arribas, Martin Roth, Jordi PDF

By Evencio Mediavilla, Santiago Arribas, Martin Roth, Jordi Cepa-Nogué, Francisco Sánchez

ISBN-10: 0511769865

ISBN-13: 9780511769863

ISBN-10: 0521895413

ISBN-13: 9780521895415

At the same time storing either spectral and spatial info, 3D spectroscopy bargains a brand new option to take on astrophysical difficulties, and opens up new traces of analysis. considering the fact that its inception within the eighties and early nineties, study during this box has grown drastically. huge telescopes everywhere in the global are actually built with essential box devices, and tools of the longer term James Webb area Telescope can have vital box spectroscopic features. these days, extra attempt is devoted to refining options for lowering, studying and examining the knowledge acquired with 3D spectrographs. Containing lectures from the 17th iciness institution of the Canary Islands Astrophysics Institute, this ebook explores new 3D spectroscopy suggestions and information. A extensive and balanced presentation of study during this box, it introduces astronomers to a brand new new release of tools, widening the charm of essential box spectroscopy and aiding it develop into a robust software in tackling astrophysical difficulties.

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Extra info for 3D Spectroscopy in Astronomy (Canary Islands Winter School of Astrophysics)

Sample text

A) Compact GMOS-IFU. b) VIMOS-IFU, the largest IFU to date, providing a total of 6400 spectra. for the J, H and K bands in the near infrared (NIR). Since the available detector size was small (256 × 256 pixels), it was felt that the number of fiber or lens array spectra that could be projected onto the available chip would be too small to warrant the effort of building a conventional IFU. As an alternative, the slicer method generates a stack of long-slit spectra, corresponding to a series of parallel slices in the image plane.

The history of IFS as discussed so far included the very first prototypes and a first generation of facility instruments for 4 m class telescopes. The latter already represented a significant step towards establishing 3D spectroscopy as a common user technique. e. g. , 2006). These instruments usually come with their own data reduction pipeline, which is an important prerequisite for opening this non-trivial observing technique to the common user. Future facilities are presently planned for ground-based and for space telescopes.

Lens Array of the OASIS 3D Spectrograph. 35. Principle of a micropupil (not to scale). 36. Optical layout of a lens array with fore-optics (adapted from Dean, 2002). area is negligible for most lens arrays. Lens arrays are therefore superior devices for high spatial resolution studies of objects on small scales. Another significant advantage of lens array IFUs is often overlooked, namely the principle of micropupil imagery. Instead of imaging the dispersed spaxels of the IFU, it is the microscopic entrance pupil behind each lenslet (= spaxel) of a lens array that is imaged onto the detector (hence the term ‘micropupil’).

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3D Spectroscopy in Astronomy (Canary Islands Winter School of Astrophysics) by Evencio Mediavilla, Santiago Arribas, Martin Roth, Jordi Cepa-Nogué, Francisco Sánchez

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