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首页> 外文期刊>The Astrophysical journal >Dust Reddening in Sloan Digital Sky Survey Quasars
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Dust Reddening in Sloan Digital Sky Survey Quasars

机译:Sloan Digital Sky Survey Quasars中的粉尘变红

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We explore the form of extragalactic reddening toward quasars using a sample of 9566 quasars with redshifts 0 0.1, and less than 1% have EB-V > 0.2, where the extinction is relative to quasars with modal colors. Reddening is uncorrelated with the presence of intervening narrow-line absorption systems, but reddened quasars are much more likely to show narrow absorption at the redshift of the quasar than are unreddened quasars. Thus the reddening toward quasars is dominated by SMC-like dust at the quasar redshift.
机译:我们使用9566个红移0 0.1的类星体,探索了类星体的河外变红的形式,其中小于1%的EB-V> 0.2,其中消光相对于具有模态颜色的类星体。变红与中间窄线吸收系统的存在无关,但是变红的类星体比未变红的类星体更容易在类星体的红移处显示窄的吸收。因此,在类星体红移处,向类星体的变红主要由类SMC尘埃控制。

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