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Rapid evolution and transformation into quiescence?: ALMA view on z > 6 low-luminosity quasars

Izumi, Takuma; Onoue, Masafusa; Matsuoka, Yoshiki; Nagao, Tohru; Strauss, Michael A; Imanishi, Masatoshi; Kashikawa, Nobunari; Fujimoto, Seiji; Kohno, Kotaro; Toba, Yoshiki; Tang, Ji-Jia


We present ALMA [CII] line and far-infrared (FIR) continuum observations of seven z > 6 low-luminosity quasars (M1450 > −25 mag) discovered by our on-going Subaru Hyper Suprime-Cam survey. The [CII] line was detected in all targets with luminosities of ∼(2−10) x 108 L⊙, about one order of magnitude smaller than optically luminous quasars. Also found was a wide scatter of FIR continuum luminosity, ranging from LFIR < 1011L⊙ to ∼2 x 1012L⊙. With the [CII]-based dynamical mass, we suggest that a...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Proceedings of the International Astronomical Union
DOI: 10.1017/S1743921319009487


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