%0 Generic %1 hayashi2017survey %A Hayashi, Masao %A Tanaka, Masayuki %A Shimakawa, Rhythm %A Furusawa, Hisanori %A Momose, Rieko %A Silverman, John D. %A Kodama, Tadayuki %A Komiyama, Yutaka %A Koyama, Yusei %A Leauthaud, Alexie %A Lin, Yen-Ting %A Miyazaki, Satoshi %A Nagao, Tohru %A Nishizawa, Atsushi J. %A Ouchi, Masami %A Shibuya, Takatoshi %A Tadaki, Ken-ichi %A Yabe, Kiyoto %D 2017 %K HSC SSP emission function line luminosity %T A 17 deg$^2$ survey of emission line galaxies at z<1.5 in HSC-SSP DR1 %U http://arxiv.org/abs/1704.05978 %X We present initial results from the Subaru Strategic Program (SSP) with Hyper Suprime-Cam (HSC) on a comprehensive survey of emission line galaxies at $z<1.5$. In the first data release of the HSC-SSP, two narrowband data (NB816 and NB921) down to 25.6--25.9 mag at $5 \sigma$ are available over 17 deg$^2$, which allow us to construct unprecedentedly large samples of 18,792 H$\alpha$ emitters at $z \approx$ 0.25 and 0.40, 16,051 OIII emitters at $z \approx$ 0.63 and 0.84, and 28,157 OII emitters at $z \approx$ 1.19 and 1.47. We reveal the cosmic web on a scale of more than 50 comoving Mpc where some galaxy clusters identified by red sequence galaxies are located on the intersection of filamentary structures of star-forming galaxies. The luminosity functions for the emission line galaxies are consistent with the previous studies, except for the bright end of the luminosity functions for the H$\alpha$ emitters at $z \approx$ 0.25--0.40. This is likely due to small survey volumes probed by previous studies which is sensitive to the cosmic variance. The wide field coverage of the data allows us to overcome the cosmic variance and derive the bright end of the luminosity functions more precisely than the previous studies. We also investigate the stellar mass functions for the H$\alpha$ emitters at $z \approx$ 0.25--0.40 and find that they are consistent with those from the stellar mass limited samples. Thus, our samples of the emission line galaxies are the representative ones of star-forming galaxies at the redshifts probed.

@misc{hayashi2017survey, abstract = {We present initial results from the Subaru Strategic Program (SSP) with Hyper Suprime-Cam (HSC) on a comprehensive survey of emission line galaxies at $z<1.5$. In the first data release of the HSC-SSP, two narrowband data (NB816 and NB921) down to 25.6--25.9 mag at $5 \sigma$ are available over 17 deg$^2$, which allow us to construct unprecedentedly large samples of 18,792 H$\alpha$ emitters at $z \approx$ 0.25 and 0.40, 16,051 [OIII] emitters at $z \approx$ 0.63 and 0.84, and 28,157 [OII] emitters at $z \approx$ 1.19 and 1.47. We reveal the cosmic web on a scale of more than 50 comoving Mpc where some galaxy clusters identified by red sequence galaxies are located on the intersection of filamentary structures of star-forming galaxies. The luminosity functions for the emission line galaxies are consistent with the previous studies, except for the bright end of the luminosity functions for the H$\alpha$ emitters at $z \approx$ 0.25--0.40. This is likely due to small survey volumes probed by previous studies which is sensitive to the cosmic variance. The wide field coverage of the data allows us to overcome the cosmic variance and derive the bright end of the luminosity functions more precisely than the previous studies. We also investigate the stellar mass functions for the H$\alpha$ emitters at $z \approx$ 0.25--0.40 and find that they are consistent with those from the stellar mass limited samples. Thus, our samples of the emission line galaxies are the representative ones of star-forming galaxies at the redshifts probed.}, added-at = {2017-04-21T10:26:47.000+0200}, author = {Hayashi, Masao and Tanaka, Masayuki and Shimakawa, Rhythm and Furusawa, Hisanori and Momose, Rieko and Silverman, John D. and Kodama, Tadayuki and Komiyama, Yutaka and Koyama, Yusei and Leauthaud, Alexie and Lin, Yen-Ting and Miyazaki, Satoshi and Nagao, Tohru and Nishizawa, Atsushi J. and Ouchi, Masami and Shibuya, Takatoshi and Tadaki, Ken-ichi and Yabe, Kiyoto}, biburl = {https://www.bibsonomy.org/bibtex/2df47536aea5cd22b8c36c286f03c73fc/miki}, description = {[1704.05978] A 17 deg$^2$ survey of emission line galaxies at z&lt;1.5 in HSC-SSP DR1}, interhash = {6aad1bda49c62df0a382798699521e65}, intrahash = {df47536aea5cd22b8c36c286f03c73fc}, keywords = {HSC SSP emission function line luminosity}, note = {cite arxiv:1704.05978Comment: 25 pages, 21 figures, 4 tables, submitted to PASJ for publication in the HSC-SSP special issue}, timestamp = {2017-04-21T10:26:58.000+0200}, title = {A 17 deg$^2$ survey of emission line galaxies at z<1.5 in HSC-SSP DR1}, url = {http://arxiv.org/abs/1704.05978}, year = 2017 }