Spectral Energy Distribution fitting: Application to Lyα-emitting galaxies |
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Authors: | Eric Gawiser |
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Institution: | aDepartment of Physics and Astronomy, Rutgers University, United States |
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Abstract: | Spectral Energy Distribution (SED) fitting is a well-developed astrophysical tool that has recently been applied to high-redshift Lyα-emitting galaxies. If rest-frame ultraviolet through near-infrared photometry is available, it allows the simultaneous determination of the star formation history and dust extinction of a galaxy. Lyα-emitter SED fitting results from the literature find star formation rates 3 M yr−1, stellar masses 109 M for the general population but 1010 M for the subset detected by IRAC, and very low dust extinction, AV 0.3, although a couple of outlying analyses prefer significantly more dust and higher intrinsic star formation rates. A checklist of 14 critical choices that must be made when performing SED fitting is discussed. |
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Keywords: | Galaxy formation Star formation Stellar populations Starburst galaxies Protogalaxies |
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