AKARI Spectroscopic Study of the Rest-frame Optical Spectra of Quasars at 3.5 < z < 6.5

Details AKARI Spectroscopic Study of the Rest-frame Optical Spectra of Quasars at 3.5 < z < 6.5 AKARI Spectroscopic Study of the Rest-frame Optical Spectra of Quasars at 3.5 < z < 6.5

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21460307j&link_type=abstract

American Astronomical Society, AAS Meeting #214, #603.07

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the initial results of rest-frame optical spectroscopy of quasars at 3.5 < z < 6.5 from the AKARI space telescope mission program QSONG (Quasar Spectroscopic Observation with NIR Grism). QSONG is an AKARI phase-3 mission program which utilizes the unique capability of spectroscopy at 2-5microns, and is adequate for detecting redshifted optical emission such as Balmer and oxygen lines. Here, we report our measurements of supermassive black hole (SMBH) masses with well calibrated optical mass estimators. The measurements allow us to assess the usefulness of UV mass estimators as a means to understand the mass evolution of the SMBHs.

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