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The galaxy luminosity function in the LAMOST Complete Spectroscopic Survey of Pointing Area at the Southern Galactic Cap.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhao, Pin-Song Xu, Cong Kevin Yang, Ming Yang, Fan Zhu, Yinan Jin, Junjie Yuan, Hailong Zhang, Haotong Shen, Shiyin Shi, Jianrong Wu, Xuebing Zhao, Yongheng Jing, Yipeng |
| Copyright Year | 2019 |
| Abstract | We present optical luminosity functions (LFs) of galaxies in the $^{0.1}g$, $^{0.1}r$, and $^{0.1}i$ bands, calculated using data in $\sim 40$ $deg^{2}$ sky area of LAMOST Complete Spectroscopic Survey of Pointing Area (LaCoSSPAr) in Southern Galactic Cap. Redshifts for galaxies brighter $r = 18.1$ were obtained mainly with LAMOST. In each band, LFs derived using both parametric and non-parametric maximum likelihood methods agree well with each other. In the $^{0.1}r$ band, our fitting parameters of the Schechter function are $\phi_{*}=(1.65\pm0.36)\times10^{-2}h^{3}Mpc^{-3}$, $M_{*}=-20.69\pm0.06$ mag, and $\alpha=-1.12\pm0.08$, in agreements with previous studies. Separate LFs are also derived for emission line galaxies and absorption line galaxies, respectively. The LFs of absorption line galaxies show a dip at $^{0.1}r \sim 18.5$ and can be well fitted by a double-Gaussian function, suggesting a bi-modality in passive galaxies. |
| File Format | PDF HTM / HTML |
| DOI | 10.1088/1674-4527/19/8/113 |
| Alternate Webpage(s) | https://arxiv.org/pdf/1903.07893v1.pdf |
| Alternate Webpage(s) | https://doi.org/10.1088/1674-4527%2F19%2F8%2F113 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
