Detection of an H$\alpha$ Emission Line on a Quasar, RX J1759.4$+$6638, at <i>Z</i> = 4.3 with AKARI
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説明
<jats:p>We report on the detection of an H$\alpha$ emission line in the low-resolution spectrum of a quasar, RX J1759.4$+$6638, at a redshift of 4.3 with the Infrared Camera (IRC) onboard AKARI. This is the first spectroscopic detection of an H$\alpha$ emission line in a quasar beyond $z =$ 4. The overall spectral energy distribution (SED) of RX J1759.4$+$6638 in the near- and mid-infrared wavelengths agrees with a median SED of the nearby quasars; also, the flux ratio of $F$(Ly$\alpha$)$/$$F$(H$\alpha$) is consistent with those of previous reports for lower-redshift quasars.</jats:p>
収録刊行物
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- Publications of the Astronomical Society of Japan
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Publications of the Astronomical Society of Japan 59 S497-S501, 2007-10-10
Oxford University Press (OUP)