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The Target-selection Pipeline for the Dark Energy Spectroscopic Instrument
Open accessAbstract
In 2021 May, the Dark Energy Spectroscopic Instrument (DESI) began a 5 yr survey of approximately 50 million total extragalactic and Galactic targets. The primary DESI dark-time targets are emission line galaxies, luminous red galaxies, and quasars. In bright time, DESI will focus on two surveys known as the Bright Galaxy Survey and the Milky Way Survey. DESI also observes a selection of “secondary” targets for bespoke science goals. This paper gives an overview of the publicly available pipeline ( desitarget ) used to process targets for DESI observations. Highlights include details of the different DESI survey targeting phases, the targeting ID ( TARGETID ) used to define unique targets, the bitmasks used to indicate a particular type of target, the data model and structure of DESI targeting files, and examples of how to access and use the desitarget code base. This paper will also describe “supporting” DESI target classes, such as standard stars, sky locations, and random catalogs that mimic the angular selection function of DESI targets. The DESI target-selection pipeline is complex and sizable; this paper attempts to summarize the most salient information required to understand and work with DESI targeting data.
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“Despite the increase in scope and complexity of future imaging surveys, the quality of exposures in large campaigns will remain essential to downstream tasks, such as astrometric (e.g., Lang et al. 2009), and photometric (e.g., Stubbs & Tonry 2006) measurements, and target selection to facilitate follow-up studies (e.g., Myers et al. 2023).”
From A Semi-Supervised Learning Method for the Identification of Bad Exposures in Large Imaging Surveys (2026) · cites this paper as Myers et al. 2023
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Astropy: A community Python package for astronomy
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Self-citationGaia Data Release 2: Summary of the contents and survey properties
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The Sloan Digital Sky Survey: Technical Summary
York, D., Adelman, J., Anderson, J., Anderson, S., Annis, J., Bahcall, N., Bakken, J., Barkhouser, R., Bastian, S., Berman, E., et al. (2000) · The Astronomical Journal · doi:10.1086/301513 · Cited by 8,368 · cited 1×
“The Sloan Digital Sky Survey (SDSS; York et al. 2000), in particular, greatly advanced the frontiers of software development for large sky surveys.”
BackgroundThe Astropy Project: Building an Open-science Project and Status of the v2.0 Core Package
Price-Whelan, A., Sipőcz, B., Günther, H. M., Lim, P., Crawford, S., Conseil, S., Shupe, D., Craig, M., Dencheva, N., Ginsburg, A., et al. (2018) · Astronomical Journal · doi:10.3847/1538-3881/aabc4f · Cited by 6,887
Self-citationGórski, K., Hivon, E., Banday, A., Wandelt, B. D., Hansen, F., Reinecke, M., & Bartelmann, M. (2004) · The Astrophysical Journal · doi:10.1086/427976 · Cited by 5,217 · cited 1×
“Throughout this paper, code examples are given in the Python programming language and HEALPixel1 nside numbers (Górski et al. 2005; Zonca et al. 2019) are always expressed in the NESTED scheme.”
MethodBrown, A. G. A., Vallenari, A., Prusti, T., de Bruijne, J. H. J., Babusiaux, C., Biermann, M., Creevey, O. L., Evans, D. W., Eyer, L., Hutton, A., et al. (2020) · Astronomy and Astrophysics · doi:10.1051/0004-6361/202039657 · Cited by 3,937
Sloan Digital Sky Survey: Early Data Release
Stoughton, C., Lupton, R. H., Bernardi, M., Blanton, M. R., Burles, S. M., Castander, F. J., Connolly, A. J., Eisenstein, D. J., Frieman, J. A., Hennessy, G. S., et al. (2002) · The Astronomical Journal · doi:10.1086/324741 · Cited by 2,389 · cited 2×
“A UNIQUE IDENTIFIER FOR DESI TARGETS DESI utilizes a unique ID, similar to the objID used by the SDSS (e.g. Stoughton et al. 2002), to track tar- geted objects through the end-to-end pipeline.”
MethodSelf-citationThe 2dF Galaxy Redshift Survey: spectra and redshifts
Colless, M., Dalton, G., Maddox, S., Sutherland, W. J., Norberg, P., Cole, S., Bland‐Hawthorn, J., Bridges, T. J., Cannon, R., Collins, C. A., et al. (2001) · Monthly Notices of the Royal Astronomical Society · doi:10.1046/j.1365-8711.2001.04902.x · Cited by 2,368 · cited 1×
“…to account for different emulsions on glass plates versus films, and the survey pipeline generated masks to miti- gate density fluctuations caused by bright stars, varying flux limits, satellite tracks and plate defects (e.g. Colless et al. 2001, 2003; Croom et al. 2004; Smith et al. 2005).”
Background
Research works printed but not linked: 3
- Høg, 2000, A&A, 355, L27
- Palmese, 2021, GCN, 30923, 1
- Wells, 1981, A&AS, 44, 363
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Items 101–159 of 159
The VST ATLAS quasar survey I: Catalogue of photometrically selected quasar candidates
Eltvedt, A., Shanks, T., Metcalfe, N., Ansarinejad, B., Barrientos, L. F., Sharp, R., Malik, U., Murphy, D. N. A., Irwin, M. J., Wilson, M., et al. (2023) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stad516 · Cited by 4
Self-citationRedshift-dependent RSD bias from intrinsic alignment with DESI Year 1 spectra
Lamman, C., Eisenstein, D. J., Aguilar, J., Ahlen, S. P., Brooks, D., Claybaugh, T., de la Macorra, A., Dey, A. T., Dey, B., Doel, P., et al. (2024) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stae317 · Cited by 4
Self-citationSchlafly, E. F., Schlegel, D. J., BenZvi, S., Raichoor, A., Forero-Romero, J. E., Aguilar, J., Ahlen, S. P., Bailey, S., Bault, A., Brooks, D., et al. (2024) · The Astronomical Journal · doi:10.3847/1538-3881/ad4d8c · Cited by 4
Self-citationA Census of Compact Elliptical Galaxies in the Coma Cluster
Sharonova, A. V., Grishin, K., Chilingarian, I., Mamon, G. A., Caldwell, N., & Fabricant, D. G. (2025) · The Astrophysical Journal · doi:10.3847/1538-4357/ae070d · Cited by 3
“The mean fiber allocation fraction was 99% for the Bright Galaxy Survey ( BGS; C. Hahn et al. 2023 ) during SV3 ( A. D. Myers et al. 2023 ) .”
Hadzhiyska, B., Gong, Y., Hsu, Y., Gallardo, P. A., Aguilar, J., Ahlen, S. P., Alonso, D., Bean, R., Bianchi, D., Brooks, D., et al. (2026) · Physical review. D/Physical review. D. · doi:10.1103/9h6g-gxdn · Cited by 3
Self-citationUzsoy, A. S. M., Saydjari, A. K., Dey, A., Raichoor, A., Finkbeiner, D. P., Gawiser, E., Lee, K. S., Ahlen, S. P., Bianchi, D., Brooks, D., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae3f9a · Cited by 3
“The four main galaxy samples targeted by DESI are bright galaxies, luminous red galaxies (LRGs), emission line galaxies (ELGs), and QSOs (Myers et al. 2023; Schlafly et al. 2023).”
Self-citationThe DESI Transients Survey: Legacy Classifications and Methodology
Hall, X. J., Palmese, A., BenZvi, S., Banovetz, J., O’Connor, B., Hu, L., Hammerstein, E., Amsellem, A., Aguilar, J., Ahlen, S. P., et al. (2026) · The Astrophysical Journal Supplement Series · doi:10.3847/1538-4365/ae6509 · Cited by 3
“In theory, there could be exceptions to this through various secondary programs (see, e.g., Section 2.1 of Myers et al. 2023a) or failures in the Legacy Survey tractor catalog incorrectly identifying one large (potentially clumpy) galaxy as many small galaxies (Dey et al. 2019).”
InfluentialSelf-citationA Comprehensive Characterization of Galaxy-cool CGM Connections at z < 0.4 with DESI Year 1 Data
Ng, Y. V., Lan, T.-W., Prochaska, J. X., Saintonge, A., Chang, Y. L., Siudek, M., Aguilar, J., Ahlen, S. P., Bianchi, D., Brooks, D., et al. (2025) · The Astrophysical Journal · doi:10.3847/1538-4357/ae0613 · Cited by 3
“In order to maximize the efficiency of the survey, dedicated algorithms and codes have also been developed for target selection (Myers et al. 2023), fiber assignments (Raichoor et al. 2024) and survey operations (Schlafly et al. 2023) In this work, we use the Year 1 dataset of the DESI survey (DESI…”
Self-citationModel independent variance cancellation in CMB lensing cross-correlations
Lizancos, A. B., & Ferraro, S. (2023) · Physical review. D/Physical review. D. · doi:10.1103/physrevd.107.123532 · Cited by 3
Friedman-Shaw, B., Krolewski, A., Foglieni, M., & Afshordi, N. (2025) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2025/03/059 · Cited by 3
“The first part of SV (SV1) was designed to finalize DESI targeting [61]: it uses looser target selection and longer integration times to achieve a high success rate on a superset of the final DESI targets.”
Jia, P., Li, Y., Li, J., Yang, X., Xin, L. P., & Wei, J. (2025) · Astronomy and Astrophysics · doi:10.1051/0004-6361/202453293 · Cited by 3
Ali, A. (2026) · Zenodo (CERN European Organization for Nuclear Research) · doi:10.5281/zenodo.20633582 · Cited by 3
The Cosmic Evolution and Spatial Distribution of Multiphase Gas Associated with QSOs
Chen, Z., Wang, E., Zou, H., Yu, H., He, Z., Wang, H., Gao, Y., Lyu, C., Cheng, J., Ma, C., et al. (2025) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/ade545 · Cited by 2
Self-citationDESI Emission-line Galaxies: Clustering Dependence on Stellar Mass and [O II ] Luminosity
Hagen, T., Dawson, K., Zheng, Z., Aguilar, J., Ahlen, S. P., BenZvi, S., Bianchi, D., Brooks, D., Castander, F. J., Claybaugh, T., et al. (2025) · The Astrophysical Journal · doi:10.3847/1538-4357/ae0036 · Cited by 2
“In order to balance the redshift coverage of the ELGs with other targets during fiber assignment, each ELG is assigned one of two priority designations, low ( ELG LOP ) or very low ( ELG VLO ), in the form of targeting bits (Myers et al. 2023).”
Self-citationInference of the linear matter power spectrum at z = 0 using DESI DR1 Full-Shape data
Cereskaite, R., Mueller, E.-M., Howlett, C., Davis, T. M., Aguilar, J., Ahlen, S. P., Bianchi, D., Brooks, D., Castander, F. J., Claybaugh, T., et al. (2026) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2026/04/080 · Cited by 2
“The survey targets five distinct tracers: Low-redshift galaxies from the Bright Galaxy Survey (BGS) [50], Luminous Red Galaxies (LRG) [51], Emission Line Galaxies (ELG) [52], Quasars (QSO) [53], and the Ly-α forest features in quasar spectra [54].”
Self-citationPedersen, E. M., & Stubbs, C. W. (2023) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stad2045 · Cited by 2
Lan, T.-W., Prochaska, J. X., Moustakas, J., Siudek, M., Aguilar, J., Ahlen, S. P., Bianchi, D., Brooks, D., Claybaugh, T., Cole, S., et al. (2024) · The Astrophysical Journal · doi:10.3847/1538-4357/ad8f33 · Cited by 2
“To ensure the efficiency of DESI operations, dedicated pipelines are developed for target selection (Myers et al. 2023), survey operations (Schlafly et al. 2023) and fiber assignment (Raichoor et al. 2024).”
Self-citationReconstructing redshift distributions with photometric galaxy clustering
Peng, H. F., & Yu, Y. (2024) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2024/10/025 · Cited by 2
“Throughout all the analysis, we utilize the ℓ modes from ℓ min = 100 to ℓ max = 1000 and divide into 6 broad bands with edges ℓ = 100, 418, 583, 711, 819, 914 and 1000.”
A Semi-Supervised Learning Method for the Identification of Bad Exposures in Large Imaging Surveys
Luo, Y., Myers, A. D., Drlica-Wagner, A., Dematties, D., Borchani, S., Valdes, F., Dey, A., Schlegel, D., Zhou, R., & DESI Legacy Imaging Surveys Team (2026) · The Open Journal of Astrophysics · doi:10.33232/001c.158430 · Cited by 1
Self-citationIdentifying Anomalous DESI Galaxy Spectra with a Variational Autoencoder
Nicolaou, C., Nathan, R. P., Lahav, O., Palmese, A., Saintonge, A., Aguilar, J., Ahlen, S. P., Prieto, C. A., Bailey, S., BenZvi, S., et al. (2026) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stag010 · Cited by 1
Self-citationClustering analysis of medium-band selected high-redshift galaxies
Ebina, H., White, M. J., Raichoor, A., Dey, A. T., Schlegel, D. J., Lang, D., Luo, Y., Aguilar, J., Ahlen, S. P., Anand, A., et al. (2026) · Journal of Cosmology and Astroparticle Physics · doi:10.1088/1475-7516/2026/03/019 · Cited by 1
“We compute w ( θ ) using the Landy-Szalay estimator [75] in each bin where DD , DR and RR represent (normalized) counts of pairs of data and randoms, with the random points that define the survey footprint and masks generated using the desitarget pipeline within DESI [76].”
Self-citationConfirming HSC strong lens candidates with DESI spectroscopy. I. Project overview and first results
Shu, Y., & Li, S. (2025) · Science China Physics Mechanics and Astronomy · doi:10.1007/s11433-025-2747-4 · Cited by 1
DESI EDR: Calibrating the Tully–Fisher Relationship with the DESI Peculiar Velocity Survey
Douglass, K. A., BenZvi, S., Uberoi, N., Howlett, C., Saulder, C., Said, K., Demina, R., Aguilar, J., Ahlen, S. P., Aldering, G., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae517b · Cited by 1
“Spectroscopic targets for DESI are selected from the DESI Legacy Imaging Surveys ( LS; A. Dey et al. 2019 ) using the DESI target selection pipeline ( A. D. Myers et al. 2023 ) .”
Self-citationExtremely Metal-poor Galaxies in DESI DR1: Connections to Galaxies in the Early Universe
Sui, J., Zou, H., Scholte, D., Saintonge, A., Mezcua, M., Siudek, M., Li, W., Guo, W.-J., Liu, S., Xiao, Y.-A., et al. (2026) · The Astronomical Journal · doi:10.3847/1538-3881/ae63b5 · Cited by 1
“6 ), and Milky Way survey (MWS) stars (A. D. Myers et al. 2023).”
Self-citationO’Connor, B., Busmann, M., Hall, X. J., Taguchi, K., Tanaka, M., Gruen, D., Toshikage, S., Amsellem, A., Zhu, Z., Palmese, A., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae878f · Cited by 1
“For other examples of DESI spare fiber targets and a more in-depth review of the observing strategy, see A. D. Myers et al. ( 2023 ) , DESI Collaboration et al. ( 2024 ) , and X. J. Hall et al. ( 2026b, 2026c ) .”
Self-citationHadzhiyska, B., Ferraro, S., Qu, F. J., Guachalla, B. R., Schaan, E., Aguilar, J., Ahlen, S. P., Bianchi, D., Brooks, D., Castander, F. J., et al. (2026) · Physical review. D/Physical review. D. · doi:10.1103/g381-bz2j · Cited by 1
Self-citationYang, L., & Li, Z. (2023) · The Astrophysical Journal · doi:10.3847/1538-4357/acb25d · Cited by 1
Astronomía en Colombia: una perspectiva bibliométrica
Guevara-Montoya, S., Ortiz-Ferreira, F., Silva-Arévalo, M. P., Niño-Muñoz, P. A., & Forero-Romero, J. E. (2024) · Revista de la Academia Colombiana de Ciencias Exactas Físicas y Naturales · doi:10.18257/raccefyn.2589 · Cited by 1
Self-citationDESI Mock Challenge: Constructing DESI galaxy catalogues based on FastPM simulationsPreprint
Variu, A., Alam, S., Zhao, C., Chuang, C.-H., Yu, Y., Forero-Sánchez, D., Ding, Z., Kneib, J., Aguilar, J., Ahlen, S. P., et al. (2023) · arXiv (Cornell University) · doi:10.48550/arxiv.2307.14197
Self-citationDESI Complete Calibration of the Color-Redshift Relation (DC3R2): Results from early DESI dataPreprint
McCullough, J. (2023) · arXiv (Cornell University) · doi:10.5281/zenodo.8328495
Schlafly, E. F., Guy, J., Honscheid, K., Kent, S., Koposov, S. E., Aguilar, J., Ahlen, S. P., Bailey, S., Brooks, D., Claybaugh, T., et al. (2024) · The Astronomical Journal · doi:10.3847/1538-3881/ad7e12
“The focal plane is outfitted with 5000 fibers which can be robotically positioned in a 1.4 ′ patrol radius to collect light from target stars and galaxies (Silber et al. 2023; Myers et al. 2023).”
InfluentialSelf-citationGondhalekar, Y., Feder, R. M., Graham, M. J., Kembhavi, A. K., Safonova, M., Saha, S., & Mahabal, A. A. (2025) · Publications of the Astronomical Society of the Pacific · doi:10.1088/1538-3873/ae1386
“01, and (e) flux ivar i > 0, where i = g , r , and z , with specific values taken from the DESI target selection pipeline (Myers et al. 2023).”
Validation of the Scientific Program for the Dark Energy Spectroscopic Instrument
Collaboration, D., Adame, A., Aguilar, J. A., Ahlen, S. P., Alam, S., Aldering, G., Alexander, D., Alfarsy, R., Prieto, C. A., Alvarez, M. A., et al. (2023) · Apollo (University of Cambridge)
Self-citationA New Way to Discover Strong Gravitational Lenses: Pairwise Spectroscopic Search from DESI DR1
Hsu, Y.-M., Huang, X., Storfer, C., Inchausti, J. C., Schlegel, D. J., Moustakas, J., Aguilar, J., Ahlen, S. P., Anand, A., Bailey, S., et al. (2026) · The Astrophysical Journal Supplement Series · doi:10.3847/1538-4365/ae27ce
“DESI’s target selection is based on photometry from the DESI Legacy Imaging Surveys ( A. D. Myers et al. 2023 ) .”
Self-citationParity-odd four-point correlation function from the DESI data release 1 luminous red galaxy sample
Hou, J., Cahn, R. N., Aguilar, J., Ahlen, S. P., Bianchi, D., Brooks, D., Claybaugh, T., Doel, P., Forero-Romero, J. E., GAZTAÑAGA, E., et al. (2026) · Physical review. D/Physical review. D. · doi:10.1103/2dmd-hyt1
Self-citationLiu, J., & Zhou, Z. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae626a
Self-citationA New Record Census of Dwarf AGN and a Bimodal M BH − M ⋆ Scaling Relation with DESI DR1
Pucha, R., Juneau, S., Mezcua, M., Dey, A., Mao, Y.-Y., Alexander, D. M., Circosta, C., Fawcett, V. A., Guo, W.-J., Moustakas, J., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae9859 · Cited by 6
“Details regarding the target selection are available in A. D. Myers et al. (2023).”
Self-citationCOSMOS-3D: Black Hole Mass Estimators and Luminosity Functions of Paschen-line AGNs
Jiang, D., Jiang, L., Fu, S., Zhang, Z., Chen, J., Pan, Z., Sun, S., Sun, F., Ho, L. C., Shangguan, J., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae6cd7
“Multiple observational programs, including the survey validation, special observations, and the main survey, cover the COSMOS field ( e.g., N. Scoville et al. 2007; A. D. Myers et al. 2023; DESI Collaboration et al. 2024 ) .”
Searching for Type Ia Supernovae in the Dark Energy Spectroscopic Instrument
Zhuang, X., Song, R., Meng, D., Ding, W., Zheng, R., Yao, Y., Lin, Z., Fu, B.-X., Li, F., Xu, Z., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae7083
“DESI’s primary targets include the Bright Galaxy Survey ( BGS ) galaxies, emission line galaxies ( ELGs ) , luminous red galaxies ( LRGs ) , quasars ( QSOs ) , and Milky Way Survey ( MWS ) and backup program stars ( A. D. Myers et al. 2023 ) .”
Mountrichas, G., Carrera, F. J., Masoura, V. A., Mateos, S., Siudek, M., & Corral, A. (2026) · Astronomy and Astrophysics · doi:10.1051/0004-6361/202659864
Hong, W., Yang, X., Li, J., Wang, H. G., Chen, Z., Zhu, H.-M., Li, Q., Gu, Y., Zhang, Y., Shi, F., et al. (2026) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stag1211
A Graph-based Framework for Fiber Assignment in LAMOST
Cui, Y., Yuan, H., Jiang, B., & Zhang, Y. (2026) · Publications of the Astronomical Society of the Pacific · doi:10.1088/1538-3873/ae7b87
“In the current DESI implementation, a combination of target stratification and greedy assignment logic is utilized for fiber allocation ( Myers et al. 2023; Schlafly et al. 2023 ) .”
Environmental Imprints on the Assembly of the Cool Gas around Bright Cluster Galaxies
Zhu, R., Zou, H., Fang, T., Wang, E., Chen, Z. L., Chen, Z. L., Ding, W., Gou, J., Guo, W.-J., Li, N., et al. (2026) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/ae8012
“Foreground galaxies are identified using DESI_TARGET bitmask, 8 a 64-bit integer where each bit corresponds to a specific target class ( A. D. Myers et al. 2023 ) .”
Self-citationKong, W., Chen, Z., Wang, E., Yu, H., Wang, K., Shi, D., Lyu, C., Zhang, Y., Zhang, H., & Guan, H. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae80b0
“Extragalactic sources in DESI can be categorized into four classes (Myers et al. 2023), including QSOs (0 .”
Disentangling the Distant Stellar Halo Using K Giants in DESI Year 3 Data
Kizhuprakkat, N., Cooper, A. P., Wang, W., Byström, A., Najita, J., Koposov, S. E., Thomas, G. F., Li, S., Zhang, R., Prieto, C. A., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae7f15
“Targets for DESI were selected from the DESI Legacy Imaging Survey (LS) data release 9 (Dey et al. 2019; Allende Prieto et al. 2020; Myers et al. 2023).”
Self-citationRevisiting the equation of state of dark energy from DESI BAO with SNe Ia and CMB
Zheng, J., Qiang, D.-C., You, Z.-Q., & Kumar, D. (2026) · The European Physical Journal C · doi:10.1140/epjc/s10052-026-16187-w
PAC in DESI. II. Galaxy–halo connection into the 106 M⊙ frontier
Xu, K., Frenk, C. S., Jing, Y., Cole, S., Bose, S., Aguilar, J., Ahlen, S. P., Bianchi, D., Brooks, D., Castander, F. J., et al. (2026) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stag1487
Self-citationIdentification of White Dwarfs with Infrared Excesses in DESI DR1 Based on Deep Learning
Huang, N., Mei, Y., 谈, L. 磊. T., Deng, H., & Wang, F. (2026) · The Astrophysical Journal Supplement Series · doi:10.3847/1538-4365/ae9550
“Using the DESI DR1 target-selection information, we identified an initial list of approximately 50,000 objects observed as WD candidates ( C. J. Manser et al. 2023, 2024; A. D. Myers et al. 2023 ) .”
Chen, N., Zhou, Y., Dadiani, E., Matteo, T. D., Wang, X., Palmese, A., Shen, Y. G., Li, J., Foord, A., Bird, S., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae84ce
“…17 million galaxies and quasars across four DESI target classes ( Bright Galaxy Survey ( BGS ) , luminous red galaxies ( LRGs ) , emission-line galaxies ( ELGs ) , QSOs, and secondary programs; A. D. Myers et al. 2023 ) , making it one of the largest spectroscopic datasets currently available.”
Chang, Y. L., Lan, T.-W., Prochaska, J. X., Siudek, M., Aguilar, J., Ahlen, S. P., Anand, A., Bianchi, D., Brooks, D., Castander, F. J., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/ae96b2
Self-citationProbing Dark Matter Halos of High-redshift Quasars via Wide-field Clustering
蒙, H. 皓. M., Ye, G., & Zhang, H. (2026) · The Astrophysical Journal Letters · doi:10.3847/2041-8213/aea06f
“The random points are distributed according to a homogeneous Poisson process ( A. D. Myers et al. 2023 ) and are designed to reproduce the angular selection function of the LS.”
Effect of Local Environment on Ly α Line Profile in DESI/ODIN LAEs
Uzsoy, A. S. M., Dey, A. T., Raichoor, A., Finkbeiner, D. P., Ramakrishnan, V., Lee, K.-S., Gawiser, E., Aguilar, J., Ahlen, S. P., Anand, A., et al. (2026) · The Astrophysical Journal · doi:10.3847/1538-4357/aea6d8
“DESI is a medium-resolution ( R ≡ λ / Δ λ = 2000–5300 ) ≈ 5000-fiber multiobject spectrograph ( DESI Collaboration et al. 2022; A. D. Myers et al. 2023; E. F. Schlafly et al. 2023; T. N. Miller et al. 2024; C. Poppett et al. 2024 ) dedicated to carrying out a 5 yr survey of over 40 million…”
Self-citationPhotometric Redshift Estimation via a Spectra-guided Gaussian Mixture Density Framework
He, Y., Wu, J., Jiang, B., & Zhang, Y. (2026) · Publications of the Astronomical Society of the Pacific · doi:10.1088/1538-3873/aeb072
González, J. L. V. (2026) · Zenodo (CERN European Organization for Nuclear Research) · doi:10.5281/zenodo.20507630
π/0 Primary Theory: A Unified Theoretical Framework for CosmologyPreprint
Løining, P. (2025) · Zenodo (CERN European Organization for Nuclear Research) · doi:10.5281/zenodo.18126911
Primordial Spacetime Gravity: A Geometric Alternative to Particle Dark MatterPreprint
Camhi, J. (2026) · Zenodo (CERN European Organization for Nuclear Research) · doi:10.5281/zenodo.18885197
Settasing, S. (2026) · Zenodo (CERN European Organization for Nuclear Research) · doi:10.5281/zenodo.19183584
Margetts, D., & Margetts, A. (2026) · Zenodo (CERN European Organization for Nuclear Research) · doi:10.5281/zenodo.20529364
The Confluence of Creating: M = CPreprint
Korth, B. D. (2026) · Zenodo (CERN European Organization for Nuclear Research) · doi:10.5281/zenodo.19337129
Metadata
- Authors
- Myers, A. D., Moustakas, J., Bailey, S., Weaver, B. A., Cooper, A. P., Forero-Romero, J. E., Abolfathi, B., Alexander, D. M., Brooks, D., Chaussidon, E., Chuang, C.-H., Dawson, K., Dey, A., Dey, B., Dhungana, G., Doel, P., Fanning, K., Gaztañaga, E., A Gontcho, S. G., Gonzalez-Morales, A. X., Hahn, C., Herrera-Alcantar, H. K., Honscheid, K., Ishak, M., Karim, T., Kirkby, D., Kisner, T., Koposov, S. E., Kremin, A., Lan, T.-W., Landriau, M., Lang, D., Levi, M. E., Magneville, C., Napolitano, L., Martini, P., Meisner, A., Newman, J. A., Palanque-Delabrouille, N., Percival, W., Poppett, C., Prada, F., Raichoor, A., Ross, A. J., Schlafly, E. F., Schlegel, D., Schubnell, M., Tan, T., Tarle, G., Wilson, M. J., Yèche, C., Zhou, R., Zhou, Z., & Zou, H.
- Affiliations
- University of Wyoming (US)
- Siena College (US)
- Lawrence Berkeley National Laboratory (US)
- NSF NOIRLab (US)
- National Tsing Hua University (TW)
- Universidad de Los Andes (CO)
- University of California, Irvine (US)
- Durham University (GB)
- University College London (GB)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- University of Utah (US)
- University of Pittsburgh (US)
- Southern Methodist University (US)
- The Ohio State University (US)
- Institute of Space Sciences (ES)
- Universidad de Guanajuato (MX)
- The University of Texas at Dallas (US)
- Center for Astrophysics Harvard & Smithsonian (US)
- University of Cambridge (GB)
- National Taiwan University (TW)
- Perimeter Institute (CA)
- Harvard University (US)
- University of Waterloo (CA)
- Space Sciences Laboratory (US)
- Instituto de Astrofísica de Andalucía (ES)
- Lawrence Livermore National Laboratory (US)
- University of Michigan (US)
- Centre National de la Recherche Scientifique (FR)
- Chinese Academy of Sciences (CN)
- Corresponding author
- Myers, Adam D.
- ORCID
- Moustakas, John
- Bailey, Stephen
- Cooper, Andrew P.
- Forero-Romero, Jaime E.
- Abolfathi, Bela
- Alexander, David M.
- Brooks, David
- Chaussidon, Edmond
- Chuang, Chia-Hsun
- Dawson, Kyle
- Dey, Arjun
- Dey, Biprateep
- Dhungana, Govinda
- Doel, Peter
- Fanning, Kevin
- Gaztañaga, Enrique
- Gonzalez-Morales, Alma X.
- Hahn, ChangHoon
- Herrera-Alcantar, Hiram K.
- Honscheid, Klaus
- Ishak, Mustapha
- Karim, Tanveer
- Kirkby, David
- Kisner, Theodore
- Koposov, Sergey E.
- Kremin, Anthony
- Lan, Ting-Wen
- Landriau, Martin
- Lang, Dustin
- Levi, Michael E.
- Napolitano, Lucas
- Martini, Paul
- Meisner, Aaron
- Newman, Jeffrey A.
- Palanque-Delabrouille, Nathalie
- Percival, Will
- Poppett, Claire
- Prada, Francisco
- Raichoor, Anand
- Ross, Ashley J.
- Schlafly, Edward F.
- Schlegel, David
- Schubnell, Michael
- Tan, Ting
- Tarle, Gregory
- Yèche, Christophe
- Zhou, Rongpu
- Zhou, Zhimin
- Zou, Hu
- Venue
- The Astronomical Journal
- Publisher
- American Astronomical Society
- Published
- 2023-01-11
- Volume
- 165
- Issue
- 2
- Pages
- 50
- ISSN
- 0004-6256 (ISSN-L)
- 1538-3881
- OpenAlex
- W4292421616
- Cited by
- 158
- References
- 67
- Citations by year
- 2026: 40 · 2025: 47 · 2024: 37 · 2023: 33
- FWCI
- 18.28
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- The Astronomical Journal (publishedVersion, cc-by)
- Durham Research Online (Durham University) (publishedVersion, other-oa)
- arXiv (Cornell University) (acceptedVersion)
- HAL (submittedVersion)
- DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion, cc-by)
- Durham Research Online (Durham University) (submittedVersion, cc-by)
- UCL Discovery (University College London) (submittedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
- Edinburgh Research Explorer (University of Edinburgh) (submittedVersion, cc-by)
- Apollo (University of Cambridge) (submittedVersion, cc-by)
- Zenodo (CERN European Organization for Nuclear Research) (submittedVersion, cc-by)
- arXiv (Cornell University) (cc-by)
- Apollo
- Zenodo (CERN European Organization for Nuclear Research) (cc-by)
- Funders
- U.S. Department of Energy (DE-SC0019022, DE-SC0020086, DE-AC02-05CH11231)
- Taiwan Ministry of Science and Technology (109-2112-M-007-011-MY3)
- National Science Foundation (AST-0950945)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
- Physical Sciences › Physics and Astronomy › Instrumentation › Astronomy and Astrophysical Research
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Cosmology and Gravitation Theories
- Keywords
- DESI, target selection, emission-line galaxies, luminous red galaxies, quasars, standard stars, Dark Energy Survey
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