LESSER: A Catalogue of Spectroscopically selected sample of Lyman-$\alpha$ Emitters Lensed By Galaxies

Abstract

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$ ($\mathrm{Ly}\alpha$) 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 $\mathrm{Ly}\alpha$ line morphology, and provide promising labs for studying low mass dark matter haloes/subhaloes.

11 Pages, 9 figures, 2 tables, accepted by 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

References in corpus (15)

• The 2.5 m Telescope of the Sloan Digital Sky Survey
• The Sixteenth Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra
• 3D Lyman-alpha radiation transfer. I. Understanding Lyman-alpha line profile morphologies
• The Sloan Lens ACS Survey. V. The Full ACS Strong-Lens Sample
• The Structure & Dynamics of Massive Early-type Galaxies: On Homology, Isothermality and Isotropy inside one Effective Radius
• The SL2S Galaxy-scale Lens Sample. II. Cosmic evolution of dark and luminous mass in early-type galaxies
• The Sloan Lens ACS Survey. XIII. Discovery of 40 New Galaxy-Scale Strong Lenses
• The Sloan Lens ACS Survey. XII. Extending Strong Lensing to Lower Masses
• The BOSS Emission-Line Lens Survey. IV. : Smooth Lens Models for the BELLS GALLERY Sample
• The Baryon Fractions and Mass-to-Light Ratios of Early-Type Galaxies
• Lyman alpha emission in high-redshift galaxies
• Spectroscopically Confirmed Lyman-Alpha Emitters from Redshift 5 to 7 Behind Ten Galaxy Cluster Lenses
• The OLS-lens survey: The discovery of five new galaxy-galaxy strong lenses from the SDSS
• Early-type galaxy density profiles from IllustrisTNG: II. Evolutionary trend of the total density profile
• Search for strong galaxy-galaxy lensing in SDSS-III BOSS

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• Survey of Gravitationally-lensed Objects in HSC Imaging (SuGOHI). VIII. New galaxy-scale lenses from the HSC SSP
• A search for candidate strongly-lensed dusty galaxies in the Planck satellite catalogues
• HOLISMOKES XIII: Strong-lens candidates at all mass scales and their environments from the Hyper-Suprime Cam and deep learning
• The MUSE Extremely Deep Field: Classifying the Spectral Shapes of Lya Emitting Galaxies
• A search for gravitationally lensed supernovae within the Zwicky Transient Facility public survey
• Galaxy Spectra neural Networks (GaSNets). I. Searching for strong lens candidates in eBOSS spectra using Deep Learning
• HOLISMOKES XVI: Lens search in HSC-PDR3 with a neural network committee and post-processing for false-positive removal
• A Search for Lensed Lyman-Alpha Emitters within the Early HETDEX Data Set
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