The Subaru Deep Field Project: Lyman$\alpha$ Emitters at Redshift of 6.6

Abstract

We present new results of a deep optical imaging survey using a narrowband filter ($NB921$) centered at $\lambda =$ 9196 Å~ together with $B$, $V$, $R$, $i^{\prime }$, and $z^{\prime }$ broadband filters in the sky area of the Subaru Deep Field which has been promoted as one of legacy programs of the 8.2m Subaru Telescope. We obtained a photometric sample of 58 Ly$\alpha$ emitter candidates at $z\approx$ 6.5 -- 6.6 among $\sim 180$ strong $NB921$-excess ($z^{\prime }-NB921>1.0$) objects together with a color criterion of $i^{\prime }-z^{\prime }>1.3$. We then obtained optical spectra of 20 objects in our $NB921$-excess sample and identified at least nine Ly$\alpha$ emitters at $z\sim 6.5$ -- 6.6 including the two emitters reported by Kodaira et al. (2003). Since our Ly$\alpha$ emitter candidates are free from strong amplification of gravitational lensing, we are able to discuss their observational properties from a statistical point of view. Based on these new results, we obtain a lower limit of the star formation rate density of ${\rho }_{\mathrm{SFR}}\simeq 5.5\times 10^{-4}$ $h_{0.7}$ $M_{\odot }$ yr${}^{-1}$ Mpc${}^{-3}$ at $z\approx 6.6$, being consistent with our previous estimate. We discuss the nature of star-formation activity in galaxies beyond $z=6$.

49 pages, 16 figures, PASJ, Vol. 57, No. 1, in press

References in corpus (6)

• Subaru Deep Survey V. A Census of Lyman Break Galaxies at z=4 and 5 in the Subaru Deep Fields: Photometric Properties
• The Subaru Deep Field: The Optical Imaging Data
• Current Performance and On-Going Improvements of the 8.2 m Subaru Telescope
• A Lyman alpha emitter at z = 6.5 found with slitless spectroscopy
• A Strong Lyman-alpha Emitter at z=6.33 in the Subaru Deep Field Selected as an i' Dropout
• Reanalysis of the spectrum of the z=10 galaxy

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