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 Far infra-red emission lines in high redshift quasars


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We present Plateau de Bure Interferometer observations of far infra-red emission lines in BRI 0952-0115, a lensed quasar at z=4.4 powered by a super-massive black hole (M BH=2x10^9 M sun). In this source, the resolved map of the CII emission at 158 micron allows us to reveal the presence of a companion galaxy, located at \sim 10 kpc from the quasar, undetected in optical observations. From the CO(5-4) emission line properties we infer a stellar mass M*3500 M sun-yr).



Author: Simona Gallerani

Source: https://archive.org/







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