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| Format: | Preprint |
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2023
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| Online-Zugang: | https://arxiv.org/abs/2312.17459 |
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| author | Wang, Yirong Yang, Xiaohu Gu, Yizhou Xu, Xiaoju Xu, Haojie Wang, Yuyu Katsianis, Antonios Han, Jiaxin He, Min Zheng, Yunliang Li, Qingyang Wang, Yaru Hong, Wensheng Wang, Jiaqi Tan, Zhenlin Zou, Hu Lange, Johannes Ulf Hahn, ChangHoon Behroozi, Peter Aguilar, Jessica Nicole Ahlen, Steven Brooks, David Claybaugh, Todd Cole, Shaun de la Macorra, Axel Dey, Biprateep Doel, Peter Forero-Romero, Jaime E. Honscheid, Klaus Kehoe, Robert Kisner, Theodore Lambert, Andrew Manera, Marc Meisner, Aaron Miquel, Ramon Moustakas, John Nie, Jundan Poppett, Claire Rezaie, Mehdi Rossi, Graziano Sanchez, Eusebio Schubnell, Michael Tarlé, Gregory Weaver, Benjamin Alan Zhou, Zhimin |
| author_facet | Wang, Yirong Yang, Xiaohu Gu, Yizhou Xu, Xiaoju Xu, Haojie Wang, Yuyu Katsianis, Antonios Han, Jiaxin He, Min Zheng, Yunliang Li, Qingyang Wang, Yaru Hong, Wensheng Wang, Jiaqi Tan, Zhenlin Zou, Hu Lange, Johannes Ulf Hahn, ChangHoon Behroozi, Peter Aguilar, Jessica Nicole Ahlen, Steven Brooks, David Claybaugh, Todd Cole, Shaun de la Macorra, Axel Dey, Biprateep Doel, Peter Forero-Romero, Jaime E. Honscheid, Klaus Kehoe, Robert Kisner, Theodore Lambert, Andrew Manera, Marc Meisner, Aaron Miquel, Ramon Moustakas, John Nie, Jundan Poppett, Claire Rezaie, Mehdi Rossi, Graziano Sanchez, Eusebio Schubnell, Michael Tarlé, Gregory Weaver, Benjamin Alan Zhou, Zhimin |
| contents | In this investigation, we leverage the combination of Dark Energy Spectroscopic Instrument Legacy imaging Surveys Data Release 9 (DESI LS DR9), Survey Validation 3 (SV3), and Year 1 (Y1) data sets to estimate the conditional luminosity and stellar mass functions (CLFs & CSMFs) of galaxies across various halo mass bins and redshift ranges. To support our analysis, we utilize a realistic DESI Mock Galaxy Redshift Survey (MGRS) generated from a high-resolution Jiutian simulation. An extended halo-based group finder is applied to both MGRS catalogs and DESI observation. By comparing the r and z-band luminosity functions (LFs) and stellar mass functions (SMFs) derived using both photometric and spectroscopic data, we quantified the impact of photometric redshift (photo-z) errors on the galaxy LFs and SMFs, especially in the low redshift bin at low luminosity/mass end. By conducting prior evaluations of the group finder using MGRS, we successfully obtain a set of CLF and CSMF measurements from observational data. We find that at low redshift the faint end slopes of CLFs and CSMFs below $10^{9}h^{-2}L_{\odot}$ (or $h^{-2}M_{\odot}$) evince a compelling concordance with the subhalo mass functions. After correcting the cosmic variance effect of our local Universe following arXiv:1809.00523, the faint end slopes of the LFs/SMFs turn out to be also in good agreement with the slope of the halo mass function. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_17459 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Measuring the conditional luminosity and stellar mass functions of galaxies by combining the DESI LS DR9, SV3 and Y1 data Wang, Yirong Yang, Xiaohu Gu, Yizhou Xu, Xiaoju Xu, Haojie Wang, Yuyu Katsianis, Antonios Han, Jiaxin He, Min Zheng, Yunliang Li, Qingyang Wang, Yaru Hong, Wensheng Wang, Jiaqi Tan, Zhenlin Zou, Hu Lange, Johannes Ulf Hahn, ChangHoon Behroozi, Peter Aguilar, Jessica Nicole Ahlen, Steven Brooks, David Claybaugh, Todd Cole, Shaun de la Macorra, Axel Dey, Biprateep Doel, Peter Forero-Romero, Jaime E. Honscheid, Klaus Kehoe, Robert Kisner, Theodore Lambert, Andrew Manera, Marc Meisner, Aaron Miquel, Ramon Moustakas, John Nie, Jundan Poppett, Claire Rezaie, Mehdi Rossi, Graziano Sanchez, Eusebio Schubnell, Michael Tarlé, Gregory Weaver, Benjamin Alan Zhou, Zhimin Astrophysics of Galaxies In this investigation, we leverage the combination of Dark Energy Spectroscopic Instrument Legacy imaging Surveys Data Release 9 (DESI LS DR9), Survey Validation 3 (SV3), and Year 1 (Y1) data sets to estimate the conditional luminosity and stellar mass functions (CLFs & CSMFs) of galaxies across various halo mass bins and redshift ranges. To support our analysis, we utilize a realistic DESI Mock Galaxy Redshift Survey (MGRS) generated from a high-resolution Jiutian simulation. An extended halo-based group finder is applied to both MGRS catalogs and DESI observation. By comparing the r and z-band luminosity functions (LFs) and stellar mass functions (SMFs) derived using both photometric and spectroscopic data, we quantified the impact of photometric redshift (photo-z) errors on the galaxy LFs and SMFs, especially in the low redshift bin at low luminosity/mass end. By conducting prior evaluations of the group finder using MGRS, we successfully obtain a set of CLF and CSMF measurements from observational data. We find that at low redshift the faint end slopes of CLFs and CSMFs below $10^{9}h^{-2}L_{\odot}$ (or $h^{-2}M_{\odot}$) evince a compelling concordance with the subhalo mass functions. After correcting the cosmic variance effect of our local Universe following arXiv:1809.00523, the faint end slopes of the LFs/SMFs turn out to be also in good agreement with the slope of the halo mass function. |
| title | Measuring the conditional luminosity and stellar mass functions of galaxies by combining the DESI LS DR9, SV3 and Y1 data |
| topic | Astrophysics of Galaxies |
| url | https://arxiv.org/abs/2312.17459 |