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Absolute calibration and characterization of the multiband imaging photometer for Spitzer. IV. The spectral energy distribution mode

Lu, Nanyao and Smith, Paul S. and Engelbracht, Charles W. and Noriega-Crespo, Alberto and Morrison, Jane and Gordon, Karl D. and Stansberry, John and Marleau, Francine R. and Rieke, George H. and Paladini, Roberta and Padgett, Deborah L. and Keene, Jocelyn and Latter, William B. and Fadda, Dario and Rho, Jeonghee (2008) Absolute calibration and characterization of the multiband imaging photometer for Spitzer. IV. The spectral energy distribution mode. Publications of the Astronomical Society of the Pacific, 120 (865). pp. 328-338. ISSN 0004-6280. doi:10.1086/533459.

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The spectral energy distribution (SED) mode of the Multiband Imaging Photometer for Spitzer (MIPS) aboard the Spitzer Space Telescope provides low-spectral resolution (R ≈ 15–25) spectroscopy in the far-infrared using the MIPS 70 μm detector. A reflective grating provides a dispersion of 1.7 μm per pixel, and an effective wavelength coverage of 52.8–98.7 μm over detector rows 1–27. The final 5 detector rows are contaminated by second-order diffracted light and are left uncalibrated. The flux calibration is based on observations of MIPS calibration stars with 70 μm flux densities of 0.5–15 Jy. The point-source flux calibration accuracy is estimated to be 10% or better down to about 0.5 Jy at the blue end of the spectrum and to ~2 Jy near the red end. With additional uncertainties from the illumination and aperture corrections included, the surface brightness calibration of extended sources is accurate to ~15%. Repeatability of better than 5% is found for the SED mode through multiple measurements of several calibration stars.

Item Type:Article
Related URLs:
URLURL TypeDescription
Lu, Nanyao0000-0002-8948-1044
Noriega-Crespo, Alberto0000-0002-6296-8960
Rieke, George H.0000-0003-2303-6519
Paladini, Roberta0000-0002-5158-243X
Padgett, Deborah L.0000-0001-5334-5107
Fadda, Dario0000-0002-3698-7076
Rho, Jeonghee0000-0003-3643-839X
Additional Information:© 2008 The Astronomical Society of the Pacific. Received 2007 November 14; accepted 2008 January 22; published 2008 March 13. This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under NASA contract 1407. This work was also supported by the MIPS IT contract 1255094 to the University of Arizona. P. S. S. acknowledges support from JPL contract 1256424 to the University of Arizona.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
MIPS IT1255094
Subject Keywords:bright galaxy sample; space-telescope
Issue or Number:865
Record Number:CaltechAUTHORS:LUNpasp08
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:13827
Deposited By: Tony Diaz
Deposited On:03 Apr 2009 23:02
Last Modified:08 Nov 2021 22:40

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