Xiaoyue Cao, Ran Li, Yiping Shu, Shude Mao, Jean-Paul Kneib, Liang Gao
Published 2020-08-04Version 1
We introduce the LEnSed laeS in the Eboss suRvey (LESSER) project, which aims to search for lensed Lyman-$\alpha$ Emitters (LAEs) in the Extended Baryon Oscillation Spectroscopic Survey (eBOSS). The final catalog contains 361 candidate lensing systems. The lens galaxies are luminous red galaxies (LRGs) at redshift $0.4 < z < 0.8$, and the source galaxies are LAEs at redshift $2 < z < 3$. The spectral resolution of eBOSS ($\sim$2000) allows us to further identify the fine structures of Lyman-$\alpha$ ($\rm Ly\alpha$) emissions. Among our lensed LAE candidates, 281 systems present single-peaked line profiles while 80 systems show double-peaked features. Future spectroscopic/imaging follow-up observations of the catalog may shed light on the origin of diverse $\rm Ly\alpha$ line morphology, and provide promising labs for studying low mass dark matter haloes/subhaloes.
Comments: 11 Pages, 9 figures, 2 tables, submitted to MNRAS. For catalog data, see https://github.com/caoxiaoyue/search_lensed_laes/tree/master/paper_material/catalog ; For spectra images, see https://github.com/caoxiaoyue/search_lensed_laes/tree/master/paper_material/combine_spectra ; For Lens images, see https://github.com/caoxiaoyue/search_lensed_laes/tree/master/paper_material/image_stamp
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SDSS J0909$+$4449: A Large-separation Strongly Lensed Quasar at $z \sim 2.8$ with Three Images
The galaxy-halo connection of emission-line galaxies in IllustrisTNG
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