Share Email Print
cover

Proceedings Paper

Upgrading CRIRES-VLT to cross-dispersed mode
Author(s): E. Oliva; A. Hatzes; N. Piskunov; A. Reiners; H. U. Käufl; D. Ferruzzi; A. Tozzi; L. Origlia
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The cryogenic high resolution IR echelle spectrograph CRIRES is the ESO infrared (0.95−5.4 μm) high resolution spectrograph operating at the Nasmyth A focus of VLT-UT1. The instrument provides long-slit (31") spectroscopy with resolving power up to R=100,000 over a quite narrow wavelengths range, about 1/70 of the central wavelength. Observations of compact objects (e.g. stellar photospheres) could be made much more efficient by implementing a cross-dispersed mode, which increases the simultaneous spectral coverage by an order of magnitude or more. This paper presents the design of a relatively simple system to add cross-dispersed modes to CRIRES with a minimum impact on the instrument optics and mechanics.

Paper Details

Date Published: 24 September 2012
PDF: 6 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84462N (24 September 2012); doi: 10.1117/12.924969
Show Author Affiliations
E. Oliva, INAF - Osservatorio Astrofisico di Arcetri (Italy)
A. Hatzes, Thüringer Landessternwarte (Germany)
N. Piskunov, Uppsala Astronomical Observatory and Univ. (Sweden)
A. Reiners, Georg-August-Univ. Göttingen (Germany)
H. U. Käufl, European Southern Observatory (Germany)
D. Ferruzzi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
A. Tozzi, INAF - Osservatorio Astrofisico di Arcetri (Italy)
L. Origlia, INAF - Osservatorio Astronomico di Bologna (Italy)


Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

© SPIE. Terms of Use
Back to Top