The Infrared Spectrograph on the Spitzer Space Telescope

Details The Infrared Spectrograph on the Spitzer Space Telescope The Infrared Spectrograph on the Spitzer Space Telescope

2004-06-07

arxiv.org/abs/astro-ph/0406167v1

Astrophys.J.Suppl.154:18-24,2004

Astronomy and Astrophysics

Astrophysics

Accepted in ApJ Sup. Spitzer Special Issue, 6 pages, 4 figures

Scientific paper

10.1086/423134

The Infrared Spectrograph (IRS) is one of three science instruments on the Spitzer Space Telescope. The IRS comprises four separate spectrograph modules covering the wavelength range from 5.3 to 38micron with spectral resolutions, R \~90 and 600, and it was optimized to take full advantage of the very low background in the space environment. The IRS is performing at or better than the pre-launch predictions. An autonomous target acquisition capability enables the IRS to locate the mid-infrared centroid of a source, providing the information so that the spacecraft can accurately offset that centroid to a selected slit. This feature is particularly useful when taking spectra of sources with poorly known coordinates. An automated data reduction pipeline has been developed at the Spitzer Science Center.

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