Infrared and Optical Properties of Low-z Low-Ionization Broad Absorption Line QSOs

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

Observations at low redshift indicate that low-ionization Broad Absorption Line (LoBAL) QSOs may be exclusively associated with recent starbursts, major mergers, and extreme infrared luminosities, suggesting that these objects represent an early stage in the life of QSOs when the AGN is casting out the obscuring dust and gas via outflows. We are testing this hypothesis by conducting a systematic study of a volume-limited sample of 22 LoBALs drawn from the SDSS DR3 within 0.5 < z < 0.6. We present preliminary results from Spitzer MIPS observations and highlight some optical spectral properties.

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