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2023

Improved Redshifts for DESI EDR Quasars

Wu, Qiaoya, Shen, Yue

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The Dark Energy Spectroscopic Instrument (DESI) survey will provide optical spectra for $\sim 3$ million quasars.

Accurate redshifts for these quasars will facilitate a broad range of science applications.
Here we provide improved systemic redshift estimates for the $\sim 95$k quasars included in the DESI Early Data Release (EDR), based on emission-line fits to the quasar spectra.
The majority of the DESI pipeline redshifts are reliable.

Improved Redshifts for DESI EDR Quasars · Around

Built on

Shen, Y., Richards, G. T., Strauss, M. A., et al. 2011, ApJS, 194, 45, doi: 10.1088/0067-0049/194/2/45
2011
Earlier work this paper cites.
Levi, M., Bebek, C., Beers, T., et al. 2013, arXiv e-prints, arXiv:1308.0847, doi: 10.48550/arXiv.1308.0847
Original
2013
Earlier work this paper cites.
Shen, Y., Brandt, W. N., Richards, G. T., et al. 2016, ApJ, 831, 7, doi: 10.3847/0004-637X/831/1/7
2016
Earlier work this paper cites.

Similar

http://ascl.net/1809.008
Guo, H., Shen, Y., & Wang, S. 2018, PyQSOFit: Python code to fit the spectrum of quasars, Astrophysics Source Code Library, record ascl:1809.008 · 2018
Cited alongside, same era.
Shen, Y., Hall, P. B., Horne, K., et al. 2019, ApJS, 241, 34, doi: 10.3847/1538-4365/ab074f
2019
Cited alongside, same era.

Then

Wu, Q., & Shen, Y. 2022, ApJS, 263, 42, doi: 10.3847/1538-4365/ac9ead
2022
Later among the works it cites.
DESI Collaboration, Adame, A. G., Aguilar, J., et al. 2023, arXiv e-prints, arXiv:2306.06308, doi: 10.48550/arXiv.2306.06308
Original
2023
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