Performance of the Quasar Spectral Templates for the Dark Energy Spectroscopic Instrument

Brodzeller, Allyson; Dawson, Kyle; Bailey, Stephen; Yu, Jiaxi; Ross, A. J.; Bault, A.; Filbert, S.; Aguilar, J.; Ahlen, S.; Alexander, David M.; Armengaud, E.; Berti, A.; Brooks, D.; Chaussidon, E.; de la Macorra, A.; Doel, P.; Fanning, K.; Fawcett, V. A.; Font-Ribera, A.; A Gontcho, S. Gontcho; Guy, J.; Honscheid, K.; Juneau, S.; Kehoe, R.; Kisner, T.; Kremin, Anthony; Lan, Ting-Wen; Landriau, M.; Levi, Michael E.; Magneville, C.; Martini, Paul; Meisner, Aaron M.; Miquel, R.; Moustakas, J.; Palanque-Delabrouille, N.; Percival, W. J.; Prada, F.; Ravoux, C.; Rossi, Graziano; Saulder, C.; Siudek, M.; Tarlé, Gregory; Weaver, B. A.; Youles, S.; Zheng, Zheng; Zhou, Rongpu; Zhou, Zhimin

doi:10.3847/1538-3881/ace35d

Title: Performance of the Quasar Spectral Templates for the Dark Energy Spectroscopic Instrument

Journal Article · 18 July 2023 · The Astronomical Journal

DOI: https://doi.org/10.3847/1538-3881/ace35d · OSTI ID:1991118

;

; Yu, Jiaxi;

;

; Filbert, S.;

;

; de la Macorra, A.; Doel, P.;

;

Abstract Millions of quasar spectra will be collected by the Dark Energy Spectroscopic Instrument (DESI), leading to a fourfold increase in the number of known quasars. High-accuracy quasar classification is essential to tighten constraints on cosmological parameters measured at the highest redshifts DESI observes ( z > 2.0). We present spectral templates for identification and redshift estimation of quasars in the DESI Year 1 data release. The quasar templates are comprised of two quasar eigenspectra sets, trained on spectra from the Sloan Digital Sky Survey. The sets are specialized to reconstruct quasar spectral variation observed over separate yet overlapping redshift ranges and, together, are capable of identifying DESI quasars from 0.05 < z < 7.0. The new quasar templates show significant improvement over the previous DESI quasar templates regarding catastrophic failure rates, redshift precision and accuracy, quasar completeness, and the contamination fraction in the final quasar sample.

View Journal Article

Cite

Export

Save

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-05CH11231; SC0009959

OSTI ID:: 1991118

Journal Information:: The Astronomical Journal, Journal Name: The Astronomical Journal Journal Issue: 2 Vol. 166; ISSN 0004-6256

Publisher:: American Astronomical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

References (58)

Planck 2015 results : XIII. Cosmological parameters Ade, P. A. R.; Aghanim, N.; Arnaud, M. Astronomy & Astrophysics, Vol. 594 https://doi.org/10.1051/0004-6361/201525830	journal	September 2016
Baryon acoustic oscillations from the complete SDSS-III Ly α -quasar cross-correlation function at z = 2.4 du Mas des Bourboux, Hélion; Le Goff, Jean-Marc; Blomqvist, Michael Astronomy & Astrophysics, Vol. 608 https://doi.org/10.1051/0004-6361/201731731	journal	December 2017
The multiwavelength properties of red QSOs: Evidence for dusty winds as the origin of QSO reddening Calistro Rivera, G.; Alexander, D. M.; Rosario, D. J. Astronomy & Astrophysics, Vol. 649 https://doi.org/10.1051/0004-6361/202040214	journal	May 2021
Observations of Fe II ultraviolet lines in QSOs Wills, B. J.; Uomoto, A. K.; Wills, D. The Astrophysical Journal, Vol. 237 https://doi.org/10.1086/157871	journal	April 1980
Broad emission features in QSOs and active galactic nuclei. II - New observations and theory of Fe II and H I emission Wills, B. J.; Netzer, H.; Wills, D. The Astrophysical Journal, Vol. 288 https://doi.org/10.1086/162767	journal	January 1985
The Sloan Digital Sky Survey: Technical Summary York, Donald G.; Adelman, J.; Anderson, Jr., John E. The Astronomical Journal, Vol. 120, Issue 3 https://doi.org/10.1086/301513	journal	September 2000
Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds Schlegel, David J.; Finkbeiner, Douglas P.; Davis, Marc The Astrophysical Journal, Vol. 500, Issue 2 https://doi.org/10.1086/305772	journal	June 1998
Correcting for the Effects of Interstellar Extinction Fitzpatrick, Edward L. Publications of the Astronomical Society of the Pacific, Vol. 111, Issue 755 https://doi.org/10.1086/316293	journal	January 1999
Composite Spectra from the FIRST Bright Quasar Survey Brotherton, M. S.; Tran, Hien D.; Becker, R. H. The Astrophysical Journal, Vol. 546, Issue 2 https://doi.org/10.1086/318309	journal	January 2001
An Empirical Ultraviolet Template for Iron Emission in Quasars as Derived from I Zwicky 1 Vestergaard, M.; Wilkes, B. J. The Astrophysical Journal Supplement Series, Vol. 134, Issue 1 https://doi.org/10.1086/320357	journal	May 2001
Composite Quasar Spectra from the Sloan Digital Sky Survey Vanden Berk, Daniel E.; Richards, Gordon T.; Bauer, Amanda The Astronomical Journal, Vol. 122, Issue 2 https://doi.org/10.1086/321167	journal	August 2001
Unusual Broad Absorption Line Quasars from the Sloan Digital Sky Survey Hall, Patrick B.; Anderson, Scott F.; Strauss, Michael A. The Astrophysical Journal Supplement Series, Vol. 141, Issue 2 https://doi.org/10.1086/340546	journal	August 2002
Spectral Classification of Quasars in the Sloan Digital Sky Survey: Eigenspectra, Redshift, and Luminosity Effects Yip, C. W.; Connolly, A. J.; Vanden Berk, D. E. The Astronomical Journal, Vol. 128, Issue 6 https://doi.org/10.1086/425626	journal	December 2004
The 2.5 m Telescope of the Sloan Digital Sky Survey Gunn, James E.; Siegmund, Walter A.; Mannery, Edward J. The Astronomical Journal, Vol. 131, Issue 4 https://doi.org/10.1086/500975	journal	April 2006
Principal Component Analysis with Noisy and/or Missing Data Bailey, Stephen Publications of the Astronomical Society of the Pacific, Vol. 124, Issue 919 https://doi.org/10.1086/668105	journal	September 2012
Spectral Classification and Redshift Measurement for the Sdss-Iii Baryon Oscillation Spectroscopic Survey Bolton, Adam S.; Schlegel, David J.; Aubourg, Éric The Astronomical Journal, Vol. 144, Issue 5 https://doi.org/10.1088/0004-6256/144/5/144	journal	October 2012
The Baryon Oscillation Spectroscopic Survey of Sdss-Iii Dawson, Kyle S.; Schlegel, David J.; Ahn, Christopher P. The Astronomical Journal, Vol. 145, Issue 1 https://doi.org/10.1088/0004-6256/145/1/10	journal	December 2012
The Multi-Object, Fiber-Fed Spectrographs for the Sloan Digital sky Survey and the Baryon Oscillation Spectroscopic Survey Smee, Stephen A.; Gunn, James E.; Uomoto, Alan The Astronomical Journal, Vol. 146, Issue 2 https://doi.org/10.1088/0004-6256/146/2/32	journal	July 2013
A Catalog of Broad Absorption line Quasars in Sloan Digital sky Survey data Release 5 Gibson, Robert R.; Jiang, Linhua; Brandt, W. N. The Astrophysical Journal, Vol. 692, Issue 1 https://doi.org/10.1088/0004-637X/692/1/758	journal	February 2009
Dust Reddened Quasars in First and Ukidss: Beyond the tip of the Iceberg Glikman, Eilat; Urrutia, Tanya; Lacy, Mark The Astrophysical Journal, Vol. 778, Issue 2 https://doi.org/10.1088/0004-637X/778/2/127	journal	November 2013
The Sdss-Iii Baryon Oscillation Spectroscopic Survey: Quasar Target Selection for data Release nine Ross, Nicholas P.; Myers, Adam D.; Sheldon, Erin S. The Astrophysical Journal Supplement Series, Vol. 199, Issue 1 https://doi.org/10.1088/0067-0049/199/1/3	journal	February 2012
The Sdss-Iv Extended Baryon Oscillation Spectroscopic Survey: Quasar Target Selection Myers, Adam D.; Palanque-Delabrouille, Nathalie; Prakash, Abhishek The Astrophysical Journal Supplement Series, Vol. 221, Issue 2 https://doi.org/10.1088/0067-0049/221/2/27	journal	December 2015
The large-scale quasar-Lyman α forest cross-correlation from BOSS Font-Ribera, Andreu; Arnau, Eduard; Miralda-Escudé, Jordi Journal of Cosmology and Astroparticle Physics, Vol. 2013, Issue 05 https://doi.org/10.1088/1475-7516/2013/05/018	journal	May 2013
Optimal strategies for identifying quasars in DESI Farr, James; Font-Ribera, Andreu; Pontzen, Andrew Journal of Cosmology and Astroparticle Physics, Vol. 2020, Issue 11 https://doi.org/10.1088/1475-7516/2020/11/015	journal	November 2020
The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from the anisotropic power spectrum of the quasar sample between redshift 0.8 and 2.2 Neveux, Richard; Burtin, Etienne; de Mattia, Arnaud Monthly Notices of the Royal Astronomical Society, Vol. 499, Issue 1 https://doi.org/10.1093/mnras/staa2780	journal	September 2020
The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: BAO and RSD measurements from anisotropic clustering analysis of the quasar sample in configuration space between redshift 0.8 and 2.2 Hou, Jiamin; Sánchez, Ariel G.; Ross, Ashley J. Monthly Notices of the Royal Astronomical Society, Vol. 500, Issue 1 https://doi.org/10.1093/mnras/staa3234	journal	October 2020
The effect of quasar redshift errors on Lyman-α forest correlation functions Youles, Samantha; Bautista, Julian E.; Font-Ribera, Andreu Monthly Notices of the Royal Astronomical Society, Vol. 516, Issue 1 https://doi.org/10.1093/mnras/stac2102	journal	July 2022
Primordial non-Gaussianity from the completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey II: measurements in Fourier space with optimal weights Mueller, Eva-Maria; Rezaie, Mehdi; Percival, Will J. Monthly Notices of the Royal Astronomical Society, Vol. 514, Issue 3 https://doi.org/10.1093/mnras/stac812	journal	April 2022
Fundamental differences in the properties of red and blue quasars: measuring the reddening and accretion properties with X-shooter Fawcett, V. A.; Alexander, D. M.; Rosario, D. J. Monthly Notices of the Royal Astronomical Society, Vol. 513, Issue 1 https://doi.org/10.1093/mnras/stac945	journal	April 2022
The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR14 quasar sample: measurement of the growth rate of structure from the anisotropic correlation function between redshift 0.8 and 2.2 Zarrouk, Pauline; Burtin, Etienne; Gil-Marín, Héctor Monthly Notices of the Royal Astronomical Society, Vol. 477, Issue 2 https://doi.org/10.1093/mnras/sty506	journal	February 2018
Improved redshifts for SDSS quasar spectra: Improved SDSS redshifts Hewett, Paul C.; Wild, Vivienne Monthly Notices of the Royal Astronomical Society https://doi.org/10.1111/j.1365-2966.2010.16648.x	journal	April 2010
The Sdss-Iv Extended Baryon Oscillation Spectroscopic Survey: Overview and Early data Dawson, Kyle S.; Kneib, Jean-Paul; Percival, Will J. The Astronomical Journal, Vol. 151, Issue 2 https://doi.org/10.3847/0004-6256/151/2/44	journal	February 2016
The Sloan Digital sky Survey Reverberation Mapping Project: Velocity Shifts of Quasar Emission Lines Shen, Yue; Brandt, W. N.; Richards, Gordon T. The Astrophysical Journal, Vol. 831, Issue 1 https://doi.org/10.3847/0004-637X/831/1/7	journal	October 2016
Improved Spectrophotometric Calibration of the Sdss-Iii boss Quasar Sample Margala, Daniel; Kirkby, David; Dawson, Kyle The Astrophysical Journal, Vol. 831, Issue 2 https://doi.org/10.3847/0004-637X/831/2/157	journal	November 2016
Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe Blanton, Michael R.; Bershady, Matthew A.; Abolfathi, Bela The Astronomical Journal, Vol. 154, Issue 1 https://doi.org/10.3847/1538-3881/aa7567	journal	June 2017
Modeling the Spectral Diversity of Quasars in the Sixteenth Data Release from the Sloan Digital Sky Survey Brodzeller, Allyson; Dawson, Kyle The Astronomical Journal, Vol. 163, Issue 3 https://doi.org/10.3847/1538-3881/ac4600	journal	February 2022
Overview of the Instrumentation for the Dark Energy Spectroscopic Instrument Abareshi, B.; Aguilar, J.; Ahlen, S. The Astronomical Journal, Vol. 164, Issue 5 https://doi.org/10.3847/1538-3881/ac882b	journal	October 2022
The Robotic Multiobject Focal Plane System of the Dark Energy Spectroscopic Instrument (DESI) Silber, Joseph Harry; Fagrelius, Parker; Fanning, Kevin The Astronomical Journal, Vol. 165, Issue 1 https://doi.org/10.3847/1538-3881/ac9ab1	journal	December 2022
The Target-selection Pipeline for the Dark Energy Spectroscopic Instrument Myers, Adam D.; Moustakas, John; Bailey, Stephen The Astronomical Journal, Vol. 165, Issue 2 https://doi.org/10.3847/1538-3881/aca5f9	journal	January 2023
Target Selection and Validation of DESI Luminous Red Galaxies Zhou, Rongpu; Dey, Biprateep; Newman, Jeffrey A. The Astronomical Journal, Vol. 165, Issue 2 https://doi.org/10.3847/1538-3881/aca5fb	journal	January 2023
The DESI Survey Validation: Results from Visual Inspection of the Quasar Survey Spectra Alexander, David M.; Davis, Tamara M.; Chaussidon, E. The Astronomical Journal, Vol. 165, Issue 3 https://doi.org/10.3847/1538-3881/acacfc	journal	February 2023
The Spectroscopic Data Processing Pipeline for the Dark Energy Spectroscopic Instrument Guy, J.; Bailey, S.; Kremin, A. The Astronomical Journal, Vol. 165, Issue 4 https://doi.org/10.3847/1538-3881/acb212	journal	March 2023
Target Selection and Validation of DESI Emission Line Galaxies Raichoor, A.; Moustakas, J.; Newman, Jeffrey A. The Astronomical Journal, Vol. 165, Issue 3 https://doi.org/10.3847/1538-3881/acb213	journal	February 2023
The DESI Bright Galaxy Survey: Final Target Selection, Design, and Validation Hahn, ChangHoon; Wilson, Michael J.; Ruiz-Macias, Omar The Astronomical Journal, Vol. 165, Issue 6 https://doi.org/10.3847/1538-3881/accff8	journal	May 2023
Spectral Evolution in high Redshift Quasars from the Final Baryon Oscillation Spectroscopic Survey Sample Jensen, Trey W.; Vivek, M.; Dawson, Kyle S. The Astrophysical Journal, Vol. 833, Issue 2 https://doi.org/10.3847/1538-4357/833/2/199	journal	December 2016
Classification of Broad Absorption Line Quasars with a Convolutional Neural Network Guo, Zhiyuan; Martini, Paul The Astrophysical Journal, Vol. 879, Issue 2 https://doi.org/10.3847/1538-4357/ab2590	journal	July 2019
The Completed SDSS-IV Extended Baryon Oscillation Spectroscopic Survey: Baryon Acoustic Oscillations with Ly α Forests du Mas des Bourboux, Hélion; Rich, James; Font-Ribera, Andreu The Astrophysical Journal, Vol. 901, Issue 2 https://doi.org/10.3847/1538-4357/abb085	journal	October 2020
The DESI Survey Validation: Results from Visual Inspection of Bright Galaxies, Luminous Red Galaxies, and Emission-line Galaxies Lan, Ting-Wen; Tojeiro, R.; Armengaud, E. The Astrophysical Journal, Vol. 943, Issue 1 https://doi.org/10.3847/1538-4357/aca5fa	journal	January 2023
Detection of Cosmological 21 cm Emission with the Canadian Hydrogen Intensity Mapping Experiment Amiri, Mandana; Bandura, Kevin; Chen, Tianyue The Astrophysical Journal, Vol. 947, Issue 1 https://doi.org/10.3847/1538-4357/acb13f	journal	April 2023
Target Selection and Validation of DESI Quasars Chaussidon, Edmond; Yèche, Christophe; Palanque-Delabrouille, Nathalie The Astrophysical Journal, Vol. 944, Issue 1 https://doi.org/10.3847/1538-4357/acb3c2	journal	February 2023
Variability of Low-ionization Broad Absorption-line Quasars Based on Multi-epoch Spectra from the Sloan Digital Sky Survey Yi, W.; Brandt, W. N.; Hall, P. B. The Astrophysical Journal Supplement Series, Vol. 242, Issue 2 https://doi.org/10.3847/1538-4365/ab1f90	journal	June 2019
The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra Ahumada, Romina; Prieto, Carlos Allende; Almeida, Andrés The Astrophysical Journal Supplement Series, Vol. 249, Issue 1 https://doi.org/10.3847/1538-4365/ab929e	journal	June 2020
The Sloan Digital Sky Survey Quasar Catalog: Sixteenth Data Release Lyke, Brad W.; Higley, Alexandra N.; McLane, J. N. The Astrophysical Journal Supplement Series, Vol. 250, Issue 1 https://doi.org/10.3847/1538-4365/aba623	journal	August 2020
Preliminary Target Selection for the DESI Quasar (QSO) Sample Yèche, Christophe; Palanque-Delabrouille, Nathalie; Claveau, Charles-Antoine Research Notes of the AAS, Vol. 4, Issue 10 https://doi.org/10.3847/2515-5172/abc01a	journal	October 2020
Preliminary Target Selection for the DESI Emission Line Galaxy (ELG) Sample Raichoor, Anand; Eisenstein, Daniel J.; Karim, Tanveer Research Notes of the AAS, Vol. 4, Issue 10 https://doi.org/10.3847/2515-5172/abc078	journal	October 2020
Preliminary Target Selection for the DESI Luminous Red Galaxy (LRG) Sample Zhou, Rongpu; Newman, Jeffrey A.; Dawson, Kyle S. Research Notes of the AAS, Vol. 4, Issue 10 https://doi.org/10.3847/2515-5172/abc0f4	journal	October 2020
Preliminary Target Selection for the DESI Milky Way Survey (MWS) Prieto, Carlos Allende; Cooper, Andrew P.; Dey, Arjun Research Notes of the AAS, Vol. 4, Issue 10 https://doi.org/10.3847/2515-5172/abc1dc	journal	October 2020
Preliminary Target Selection for the DESI Bright Galaxy Survey (BGS) Ruiz-Macias, Omar; Zarrouk, Pauline; Cole, Shaun Research Notes of the AAS, Vol. 4, Issue 10 https://doi.org/10.3847/2515-5172/abc25a	journal	October 2020

Similar Records

Modeling the Spectral Diversity of Quasars in the Sixteenth Data Release from the Sloan Digital Sky Survey

Journal Article · 2022 · The Astronomical Journal · OSTI ID:1843852

Brodzeller, Allyson; Dawson, Kyle

Impact of systematic redshift errors on the cross-correlation of the Lyman-α forest with quasars at small scales using DESI Early Data

Journal Article · 2025 · Journal of Cosmology and Astroparticle Physics · OSTI ID:3009740

Bault, Abby; Kirkby, David; Guy, Julien; +59 more

Detecting and Characterizing Mg ii Absorption in DESI Survey Validation Quasar Spectra

Journal Article · 2023 · The Astronomical Journal · OSTI ID:1994569

Napolitano, Lucas; Pandey, Agnesh; Myers, Adam D.; +33 more

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
cosmology
observational cosmology
quasars
redshift surveys

Title: Performance of the Quasar Spectral Templates for the Dark Energy Spectroscopic Instrument

Citation Formats

References (58)

Similar Records

Related Subjects