A New High-Redshift Lyman alpha Emitter: Possible Superwind Galaxy at z = 5.69

M. Ajiki; Y. Taniguchi; T. Murayama; T. Nagao; S. Veilleux; Y. Shioya; S. S. Fujita; Y. Kakazu; Y. Komiyama; S. Okamura; D. B. Sanders; S. Oyabu; K. Kawara; Y. Ohyama; M. Iye; N. Kashikawa; M. Yoshida; T. Sasaki; G. Kosugi; K. Aoki; T. Takata; Y. Saito; K. S. Kawabata; K. Sekiguchi; K. Okita; Y. Shimizu; M. Inata; N. Ebizuka; T. Ozawa; Y. Yadoumaru; H. Taguchi; H. Ando; T. Nishimura; M. Hayashi; R. Ogasawara; S. Ichikawa

doi:10.1086/343026

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A New High-Redshift Lyman alpha Emitter: Possible Superwind Galaxy at z = 5.69

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Abstract

During the course of our deep optical imaging survey for Ly alpha emitters at z approximately 5.7 in the field around the z=5.74 quasar SDSSp J104433.04-012502.2, we have found a candidate strong emission-line source. Follow-up optical spectroscopy shows that the emission line profile of this object is asymmetric, showing excess red-wing emission. These properties are consistent with an identification of Ly alpha emission at a redshift of z=5.687 +/- 0.002. The observed broad line width, Delta V_{FWHM} ~= 340 km s^{-1} and excess red-wing emission also suggest that this object hosts a galactic superwind.

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M. Ajiki, Y. Taniguchi, T. Murayama, T. Nagao, S. Veilleux, Y. Shioya, S. S. Fujita, Y. Kakazu, Y. Komiyama, S. Okamura, D. B. Sanders, S. Oyabu, K. Kawara, Y. Ohyama, M. Iye, N. Kashikawa, M. Yoshida, T. Sasaki, G. Kosugi, K. Aoki, T. Takata, Y. Saito, K. S. Kawabata, K. Sekiguchi, K. Okita, Y. Shimizu, M. Inata, N. Ebizuka, T. Ozawa, Y. Yadoumaru, H. Taguchi, H. Ando, T. Nishimura, M. Hayashi, R. Ogasawara, S. Ichikawa. 2002-08-03. A New High-Redshift Lyman alpha Emitter: Possible Superwind Galaxy at z = 5.69. https://doi.org/10.1086/343026

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