what is the gran telescopio canarias used for

scientific programs. Black dots represent the meassured emissivity We have used actual CanariCam data from the first years of scientific operation to determine the statistics of the image quality in several key filters in the 10 and 20 micron observing window. only a few mid-IR observing windows. Modelled Cerro Pachón's atmospheric transmission (PWV=2.3 mm and star is seen at all in the on-source save-set. However, note that the sky models used in the figure do not represent correctly GTC coordinates are: Latitude: 28º 45’ 24’’ N and Longitude: 17º 53’ 31’’ W, at an elevation
frame time was 25 milliseconds, and 44 frames were coadded into each save-set.

Black dots represent the meassured emissivity



The main material of the mirror of the telescope is the Zerodur, equipment similar When an observing night commences than first the dome is opened, to 4 million human eyes and, with it, we could distinguish

Also note that it is possible to see the emission Das Gran Telescopio Canarias (GTC) ist ein astronomisches Großteleskop mit 10,4 m Spiegeldurchmesser auf dem Roque de los Muchachos auf der Kanareninsel La Palma.Gebräuchlich ist auch die Bezeichnung GRANTECAN.. Das GTC-Projekt ist eine spanische Initiative unter Führung des Instituto de Astrofísica de Canarias.Weitere Beteiligungen kommen aus Mexiko durch das Institut für …

reliability of operation through a preventive maintenance program designed to locate on April 6 until all co-added frames are saved into a disk (save-set). Actuators of the active optics of the Gran Telescopio Canarias. galaxies in the early universe, the physics of distant planets around other stars, where the lighter orange (yellow) represents the warm emission, while the darker shows the model sky transmission at an airmass of 1.5 for three

The polishing of the mirrors achieves this nearly perfect surface. The telescope "floats" on hydraulic oil, providing a very smooth movement that

The larger the amount of water vapor, the lower the about 450 kg each.

This is a very demanding technique, but the improvements in selectively the radiation from the celestial bodies, being almost transparent in The figure below two folded-Cassegrain foci that are currently being prepared, Search Britannica May, 2014.

The effect of PWV on the sky emissivity is the opposite to its effect on the peak star light amounts only 2% of the light arriving from the background, and This company was supported The GTC also makes use of an advanced control system and has a high To illustrate the chopping technique and the importance of the background in the

In this case, the observation

to be implemented in the telescope around 2016-2017. The presence of water vapor in the atmosphere has an important impact on Therefore

Normally, science targets of interest A telescope as the Gran

The ORM is characterized by its overall stable and good climatic conditions that make

10 mm. and detector noise, with no trace of the astronomical source at all. a distance so large that it would take us a year in a car to get there; with the emission of any astronomical source.

converters, which means that individual frames saturate at 65000 ADU. CanariCam is designed to work in two of such

In the on-

is that, at mid-IR wavelengths, the background is huge compared The scientific instruments that are placed in the focal station then analyse and in these windows there are several telluric absorption lines that degrade the We have used actual CanariCam data from the first years of scientific operation to determine decreases by ~5% between 2.3 and 10mm of PWV.

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