首页> 外文期刊>The Astrophysical journal >X-RAY AND RADIO EMISSION FROM ULTRAVIOLET-SELECTED STAR-FORMING GALAXIES AT REDSHIFTS 1.5 approx< z approx< 3.0 IN THE GOODS-NORTH FIELD
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X-RAY AND RADIO EMISSION FROM ULTRAVIOLET-SELECTED STAR-FORMING GALAXIES AT REDSHIFTS 1.5 approx< z approx< 3.0 IN THE GOODS-NORTH FIELD

机译:北极垂直场中红移形成的紫外线选星型星系的X射线和无线电发射1.5大约

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摘要

We have examined the stacked radio and X-ray emission from UV-selected galaxies spectroscopically confirmed to lie in the redshift range 1.5 approx< z approx< 3.0 in the Great Observatories Origins Deep Survey-North field to determine their average extinction and star formation rates (SFRs). The X-ray and radio data are obtained from the Chandra 2 Ms survey and the Very Large Array, respectively. There is a good agreement among the X-ray, radio, and dereddened UV estimates of the average SFR for our sample of z ~ 2 galaxies of ~50 solar mass yr~(-1), indicating that the locally calibrated SFR relations appear to be statistically valid in the redshift range 1.5 approx< z approx< 3.0. We find that UV-estimated SFRs (uncorrected for extinction) underestimate the bolometric SFRs as determined from the 2-10 keV X-ray luminosity by a factor of ~ 4.5-5.0 for galaxies over a large range in redshift, 1.0 approx< z approx< S 3.5.
机译:我们检查了在大天文台起源深度调查-北场中经光谱确认已确认位于1.5约

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