Thermal gradients analysis for ESOPO spectrograph
Por:
Farah A., Jesús González J., Sierra G., Hernández J.V., Pedrayes M., Echevarría J., Costero R., Avila G., Arroyo M., Cobos F., Colorado E., Crdova A., Chapa O., Garca B., Garfias F., Granados F., Guisa G., Luna E., Martnez B., Michel R., Murillo F., Pérez F., Quechol S., Quirós F., Tejada C.
Publicada:
1 ene 2008
Resumen:
ESOPO will be a spectrograph of medium resolution for the 2.1 m telescope of the National Observatory at San Pedro Mártir, Baja California, México. It has been developed by the Instituto de Astronomía of the Universidad Nacional Autónoma de México (IA-UNAM). The main goal of this instrument is to modernize the capabilities of making science with that particular telescope. It is planned to achieve a spectral resolution between 500 and 5000. ESOPO is split into two arms; each one specialized in a speci.c wavelength range covering together all the visible light. A very important issue in spectrographs is to avoid inside thermal gradients. Di.erent temperatures in the optical elements produce mechanical movements and image quality degradation during an exposition. The error budget analysis developed for ESOPO allows establishing the required limits for temperature gradients. In this paper is described the thermal analysis of the spectrograph, including speci.cations, finite element models,thermal equations and expected thermal gradients.
Filiaciones:
Instituto de Astronomía, Universidad Nacional Autónoma de México, Apartado Postal 70-264, México, D.F., Mexico
Instituto de Astronomía, Universidad Nacional Autónoma de México, Apartado Postal 877, Ensenada, Baja California, Mexico
European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei Manchen, Germany
Instituto Nacional de Astrofsica, Óptica y Electrónica, Luis Enrique Erro 1, Tonanzintla, Puebla, Mexico
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