Damped Ly{alpha} systems from SDSS DR16Q

DOI

We present the characteristics of the damped Ly{alpha} (DLA) systems found in data release DR16 of the extended Baryon Oscillation Spectroscopic Survey of the Sloan Digital Sky Survey. The DLAs were identified using the convolutional neural network of Parks et al. (2018MNRAS.476.1151P). A total of 117458 absorber candidates were found with 2<=z_DLA_<=5.5 and 19.7<=log(N(H_I_)/cm^-2^)=20.3. Mock quasar spectra were used to estimate the DLA detection efficiency and the purity of the resulting catalog. Restricting the quasar sample to bright forests, i.e., those with mean forest fluxes f_{lambda}>2x10^-19^W/m^2^/nm, the efficiency and purity are greater than 90% for DLAs with column densities in the range 20.1<=log(N(H_I)/cm^-2^)<=22.

Cone search capability for table J/ApJS/258/18/dr16dla (The DR16 damped Ly{alpha} (DLA) catalog)

Identifier
DOI http://doi.org/10.26093/cds/vizier.22580018
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/258/18
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/258/18
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/258/18
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/258/18
Provenance
Creator Chabanier S.; Etourneau T.; Le Goff J.-M.; Rich J.; Stermer J.,Abolfathi B.; Font-Ribera A.; Gonzalez-Morales A.X.; de la Macorra A.,Perez-Rafols I.; Petitjean P.; Pieri M.M.; Ravoux C.; Rossi G.,Schneider D.P.
Publisher CDS
Publication Year 2022
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; High Energy Astrophysics; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy