High Resolution Echelle Spectrometer

2015 ◽  
pp. 1108-1108
Keyword(s):  
High Resolution ◽  
Echelle Spectrometer

Optical design for a high-resolution, 2--5-um infrared cryogenic echelle spectrometer

1990 ◽  
Author(s):  
Kenneth H. Hinkle ◽  
Stephen T. Ridgway ◽  
Frank E. Stuart
Keyword(s):  
High Resolution ◽  
Optical Design ◽  
Echelle Spectrometer

HIRES: the high-resolution echelle spectrometer on the Keck 10-m Telescope

1994 ◽  
Author(s):  
Steven S. Vogt ◽  
Steven L. Allen ◽  
Bruce C. Bigelow ◽  
L. Bresee ◽  
William E. Brown ◽  
...  
Keyword(s):  
High Resolution ◽  
Echelle Spectrometer

NanoVipa: a miniaturized high-resolution echelle spectrometer, for the monitoring of young stars from a 6U Cubesat

2017 ◽  
Vol 9 (4) ◽  
pp. 411-419 ◽  
Author(s):  
G. Bourdarot ◽  
E. Le Coarer ◽  
X. Bonfils ◽  
E. Alecian ◽  
P. Rabou ◽  
...  
Keyword(s):  
High Resolution ◽  
Young Stars ◽  
Echelle Spectrometer

scholarly journals Non-LTE Effects and Abundance Analyses of Halo Stars

1988 ◽  
Vol 132 ◽  
pp. 485-492
Author(s):  
Pierre Magain
Keyword(s):  
High Resolution ◽  
Model Atmosphere ◽  
Point Of View ◽  
Detailed Model ◽  
Observational Point ◽  
Halo Stars ◽  
Excitation Potential ◽  
Iron Abundance ◽  
The Impact ◽  
Echelle Spectrometer

The possible existence of departures from LTE affecting the abundance analyses of halo dwarfs and subgiants is analysed from the observational point of view, and illustrated by the case of the intermediate halo subgiant HD 76932. High resolution and high S/N Reticon and CCD spectra have been obtained with the ESO Coude Echelle Spectrometer. A detailed model atmosphere analysis has been carried out, which reveals a number of inconsistencies. In particular, the iron abundance derived from the neutral lines shows a very clear excitation potential dependence. Similar effects appear for oxygen and calcium and, possibly, for magnesium, chromium and ionized iron. Some overionization also seems to be present in a number of elements. The impact of these effects on the derived abundances may be rather large (some 0.2 to 0.6 dex). In particular, doubts might be raised about the reality of the oxygen overabundance and the odd-even effect in Na, Mg and Al.

Cryogenic high-resolution echelle spectrometer for the European Southern Observatory VLT

1995 ◽  
Author(s):  
Guenter R. Wiedemann ◽  
Bernard Delabre ◽  
Alan F. M. Moorwood
Keyword(s):  
High Resolution ◽  
European Southern Observatory ◽  
Echelle Spectrometer
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