2016AJ....152..191L -
Astron. J., 152, 191-191 (2016/December-0)
How accurate are infrared luminosities from monochromatic photometric extrapolation?
LIN Z., FANG G. and KONG X.
Abstract (from CDS):
Template-based extrapolations from only one photometric band can be a cost-effective method to estimate the total infrared (IR) luminosities (LIR) of galaxies. By utilizing multi-wavelength data that covers across 0.35-500 µm in GOODS-North and GOODS-South fields, we investigate the accuracy of this monochromatic extrapolated LIR based on three IR spectral energy distribution (SED) templates out to z∼3.5. We find that the Chary & Elbaz template provides the best estimate of LIR in Herschel/Photodetector Array Camera and Spectrometer (PACS) bands, while the Dale & Helou template performs best in Herschel/Spectral and Photometric Imaging Receiver (SPIRE) bands. To estimate LIR, we suggest that extrapolations from the available longest wavelength PACS band based on the Chary & Elbaz template can be a good estimator. Moreover, if the PACS measurement is unavailable, extrapolations from SPIRE observations but based on the Dale & Helou template can also provide a statistically unbiased estimate for galaxies at z\lesssim2. The emission with a rest-frame 10-100 µm range of IR SED can be well described by all three templates, but only the Dale & Helou template shows a nearly unbiased estimate of the emission of the rest-frame submillimeter part.
Abstract Copyright:
© 2016. The American Astronomical Society. All rights reserved.
Journal keyword(s):
dust, extinction - galaxies: fundamental parameters - galaxies: ISM - infrared: galaxies - infrared: galaxies
Simbad objects:
4
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