Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.1606s&link_type=abstract
American Astronomical Society, 199th AAS Meeting, #16.06; Bulletin of the American Astronomical Society, Vol. 33, p.1332
Astronomy and Astrophysics
Astronomy
Scientific paper
Starburst galaxies are the likely analogs to the population of Lyman break galaxies at high redshift (z=2-4). It is known that local starburst galaxies exhibit a correlation between their UV spectral slope (β ; equivalent to UV color) and their infrared excess (IRX; ratio of far-IR to far-UV). This relationship indicates that dust surrounds starburst regions and can be modeled to provide an estimate of the UV extinction as a simple function of the UV color. However, due to the lack of far-IR data for high redshift galaxies, it is unclear whether or not the IRX-β relationship is meaningful for high redshift galaxies. In an effort to test the validity of applying the IRX-β relationship to high redshift galaxies, we present predictions of the X-ray emission for a sample of Lyman break galaxies. Specifically, we estimate the far-IR luminosity (LFIR) using IRX-β and the X-ray luminosity (LX) from the LX-LFIR correlation for starbursts. These results are compared to current X-ray constraints.
Heckman Tim
Meurer Gerhardt R.
Seibert Marvin M.
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