Value Added Catalogs

In addition to the primary SDSS photometry and spectroscopy, there are a few extra catalogs created by our collaborators that are distributed through the SAS. These Value-Added Catalogs (VACs) are listed below, and include catalogs that were released in earlier data releases.

Lyman-alpha catalog for DR16 clustering studies

Scientific Analysis Catalog

eBOSS

QSO

DR16

Catalog of fluctuations of the Lyman-alpha transmitted flux fraction in the Lyman-alpha and Lyman-beta spectral regions in BOSS and eBOSS spectra, as used for the DR16 BAO measurement.

Hélion du Mas des Bourboux, James Rich, Andreu Font-Ribera, Victoria de Sainte Agathe, James Farr, Thomas Etourneau, Jean-Marc Le Goff, Andrei Cuceu, Christophe Balland, Julian E. Bautista, Jonathan Brinkmann, Joel R. Brownstein, Solène Chabanier, Edmond Chaussidon, Kyle Dawson, Alma X. González-Morales, Julien Guy, Brad W. Lyke, Axel de la Macorra, Adam D. Myers, Christian Nitschelm, Andrea Muñoz Gutiérrez, Nathalie Palanque-Delabrouille, James Parker, Will J. Percival, Ignasi Pérez-Ràfols, Patrick Petitjean, Matthew M. Pieri, Corentin Ravoux, Graziano Rossi, Donald P. Schneider, Hee-Jong Seo, Anže Slosar, Julianna Stermer, M. Vivek, Christophe Yèche, Samantha Youles

Location on SAS: https://data.sdss.org/sas/dr16/eboss/lya

Data model: https://data.sdss.org/datamodel/files/EBOSS_LYA/DELTA_LYAB

This VAC is described in full at
https://www.sdss.org/dr16/spectro/lyman‑alpha‑forest

Abstract

This catalog contains the fluctuations of the Lyman-alpha transmitted flux fraction in the Lyman-alpha and Lyman-beta spectral regions. The data are taken from BOSS and eBOSS quasar spectra. This catalog is used in the eBOSS DR16 Baryonic Acoustic Oscillatation (BAO) measurement (du Mas des Bourboux et al. 2020), using the Lyman-alpha auto-correlation function and Lyman-alpha -- quasar cross-correlation function. This is the largest data set ever released of Lyman-alpha tracers of the matter density fluctuations. The construction and content of this catalog is described in more detail in du Mas des Bourboux et al. (2020), and on the website linked above.

Catalog last modified: 2021-12-06 07:36:54