A Subaru Search for Lyman$\alpha$ Emitters atz= 5.8 with an Intermediate-Band Filter

Masaru Ajiki, Yoshiaki Taniguchi, Shinobu S. Fujita, Yasuhiro Shioya, Tohru Nagao, Takashi Murayama, Sanae F. Yamada, Kazuyoshi Umeda, Shunji S. Sasaki, Ryoko Sumiya, Yutaka Komiyama
2004 Nippon Tenmon Gakkai obun kenkyu hokoku  
We present the results of a survey for Ly-alpha emitters at z ~ 5.8 using a new intermediate-band filter centered at lambda_c = 8275 AA with Delta-lambda_FWHM = 340 AA (i.e., the spectroscopic resolution is R ~ 23) with a combination with a traditional narrow-band centered at lambda_c = 8150 AA with Delta-lambda_FWHM = 120 AA (R ~ 68). Our observations were made with use of the Subaru Prime Focus Camera, Suprime-Cam, on the 8.2 m Subaru telescope in a sky area surrounding the high redshift
more » ... high redshift quasar, SDSSp J104433.04-012522.2 at z=5.74, covering an effective sky area with ~ 720 arcmin^2. In this survey, we have found four Ly-alpha-emitter candidates from the intermediate-band image (z \~ 5.8 with Delta z ~ 0.3). Combined with our previous results based on the NB816 imaging, we discuss the star formation activity in galaxies between z ~ 5.7 and z ~ 5.9.
doi:10.1093/pasj/56.4.597 fatcat:o6rs6dcwrnfrbgcbibv4elbsxi