%0 Generic %1 park2015luminosity %A Park, KwangHo %A Di Matteo, Tiziana %A Ho, Shirley %A Croft, Rupert %A Wilkins, Stephen M. %A Feng, Yu %A Khandai, Nishikanta %D 2015 %K emission function line luminosity simulation %T Luminosity function of OII emission-line galaxies in the MassiveBlack-II simulation %U http://arxiv.org/abs/1508.05106 %X We examine the luminosity function (LF) of OII emission-line galaxies in the high-resolution cosmological simulation MassiveBlack-II (MBII). From the spectral energy distribution of each galaxy, we select a sub-sample of star-forming galaxies at $0.06 z 3.0$ using the OII emission line luminosity L(OII). We confirm that the specific star formation rate matches that in the GAMA survey. We show that the OII LF at z=1.0 from the MBII shows a good agreement with the LFs from several surveys below L(OII)=$10^43.0$ erg/s while the low redshifts ($z 0.3$) show an excess in the prediction of bright OII galaxies, but still displaying a good match with observations below L(OII)=$10^41.6$ erg/s. Based on the validity in reproducing the properties of OII galaxies at low redshift ($z 1$), we forecast the evolution of the OII LF at high redshift ($z 3$), which can be tested by upcoming surveys such as the HETDEX and DESI. The slopes of the LFs at bright and faint ends range from -3 to -2 showing minima at z=2. The slope of the bright end evolves approximately as 1/(z+1) at z=2 while the faint end evolves as ~3/(z+1) at $0.6 z 2$. In addition, a similar analysis is applied for the evolution of OIII LFs, which is to be explored in the forthcoming survey WFIRST-AFTA. Finally, we show that the auto-correlation function of OII and OIII emitting galaxies shows a rapid evolution from z=2 to 1.

@misc{park2015luminosity, abstract = {We examine the luminosity function (LF) of [OII] emission-line galaxies in the high-resolution cosmological simulation MassiveBlack-II (MBII). From the spectral energy distribution of each galaxy, we select a sub-sample of star-forming galaxies at $0.06 \le z \le 3.0$ using the [OII] emission line luminosity L([OII]). We confirm that the specific star formation rate matches that in the GAMA survey. We show that the [OII] LF at z=1.0 from the MBII shows a good agreement with the LFs from several surveys below L([OII])=$10^{43.0}$ erg/s while the low redshifts ($z \le 0.3$) show an excess in the prediction of bright [OII] galaxies, but still displaying a good match with observations below L([OII])=$10^{41.6}$ erg/s. Based on the validity in reproducing the properties of [OII] galaxies at low redshift ($z \le 1$), we forecast the evolution of the [OII] LF at high redshift ($z \le 3$), which can be tested by upcoming surveys such as the HETDEX and DESI. The slopes of the LFs at bright and faint ends range from -3 to -2 showing minima at z=2. The slope of the bright end evolves approximately as 1/(z+1) at z=2 while the faint end evolves as ~3/(z+1) at $0.6 \le z \le 2$. In addition, a similar analysis is applied for the evolution of [OIII] LFs, which is to be explored in the forthcoming survey WFIRST-AFTA. Finally, we show that the auto-correlation function of [OII] and [OIII] emitting galaxies shows a rapid evolution from z=2 to 1.}, added-at = {2015-08-24T09:55:10.000+0200}, author = {Park, KwangHo and Di Matteo, Tiziana and Ho, Shirley and Croft, Rupert and Wilkins, Stephen M. and Feng, Yu and Khandai, Nishikanta}, biburl = {https://www.bibsonomy.org/bibtex/2da02064d24d0cb18451e4072c231aad3/miki}, description = {[1508.05106] Luminosity function of [OII] emission-line galaxies in the MassiveBlack-II simulation}, interhash = {817a792de2715ed7eb914b647ec53202}, intrahash = {da02064d24d0cb18451e4072c231aad3}, keywords = {emission function line luminosity simulation}, note = {cite arxiv:1508.05106Comment: 12 pages, 13 figures, 3 tables, accepted for publication in MNRAS}, timestamp = {2015-08-24T09:55:10.000+0200}, title = {Luminosity function of [OII] emission-line galaxies in the MassiveBlack-II simulation}, url = {http://arxiv.org/abs/1508.05106}, year = 2015 }