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Proceedings Paper

NEFER: a high resolution scanning Fabry-Perot spectrograph
Author(s): Margarita Rosado; Abel Bernal; Jordi Cepa; Luis A. Martínez; Arturo Iriarte
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Paper Abstract

The scanning Fabry-Perot spectrograph could give highly accurate, kinematical information of star forming regions (HH objects, protoplanetary disks and large scale flows) and the dynamics of isolated and interacting galaxies (resonances, galaxy pairs, compact groups). In this project we are developing a high spectral resolution scanning Fabry-Perot interferometer for the GTC 10 m telescope and the OSIRIS instrument. The system will provide the following characteristics: high spectral resolution data (R up to 20000) over a whole field of view of approximate 8 × 8 arcmin, 0.125 arcsec pixel size in two spectral ranges; 6300 to 7000 Å (galactic projects) and 8000 to 9500 Å (OTELO objects kinematics). ICOS ET100 Fabry-Perot will be used and installed within the OSIRIS collimated beam in the filter wheel hosting the tunable filters. Several acquisition software features have been defined like: synchronizing Fabry-Perot scanning with image acquisition, data cube assembly; single frame or data cube files would be provided according to the observer data reduction process. Fabry-Perot plates parallelism is extremely important to improve Finesse. Our team has developed an algorithm to accomplish this task.

Paper Details

Date Published: 11 July 2008
PDF: 8 pages
Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70145M (11 July 2008); doi: 10.1117/12.790145
Show Author Affiliations
Margarita Rosado, Instituto de Astronomía, Univ. Nacional Autónoma de México (Mexico)
Abel Bernal, Instituto de Astronomía, Univ. Nacional Autónoma de México (Mexico)
Jordi Cepa, Instituto de Astrofisica de Canarias (Spain)
Luis A. Martínez, Instituto de Astronomía, Univ. Nacional Autónoma de México (Mexico)
Arturo Iriarte, Instituto de Astronomía, Univ. Nacional Autónoma de México (Mexico)


Published in SPIE Proceedings Vol. 7014:
Ground-based and Airborne Instrumentation for Astronomy II
Ian S. McLean; Mark M. Casali, Editor(s)

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