Measuring the Time Variation of the Fine-structure Constant with Quasars Detected by LAMOST Article Swipe

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Jin-Nan Wei , Ruijie Chen , Jun-Jie Wei , M. López‐Corredoira , Xue-Feng Wu ·

YOU? · · 2024 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2409.01554

The [O III] $λλ 4960,5008$ emission lines in the optical spectra of galaxies and quasars have been widely used to investigate the possible variation of the fine-structure constant $α$ over cosmic time. In this work, we utilize the Large Sky Area Multi-object Fiber Spectroscopic Telescope (LAMOST) quasar survey, for the first time, to measure the relative $α$ variation $Δα/α$ in time through the [O III] doublet method. From the LAMOST Data Release 9 quasar catalog, we refine a sample of 209 quasar spectra with strong and narrow [O III] emission lines over a redshift range of $0

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LAMOST Quasar Variation (astronomy) Constant (computer programming) Astrophysics Physics Geology Computer science Galaxy Programming language Stars

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Type: preprint
Language: en
Landing Page: http://arxiv.org/abs/2409.01554
PDF: https://arxiv.org/pdf/2409.01554
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Related Works: 10
OpenAlex ID: https://openalex.org/W4402954829

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DOI: https://doi.org/10.48550/arxiv.2409.01554

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Title: Measuring the Time Variation of the Fine-structure Constant with Quasars Detected by LAMOST

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Type: preprint

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Language: en

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Publication year: 2024

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Publication date: 2024-09-03

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Authors: Jin-Nan Wei, Ruijie Chen, Jun-Jie Wei, M. López‐Corredoira, Xue-Feng Wu

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Landing page: https://arxiv.org/abs/2409.01554

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PDF URL: https://arxiv.org/pdf/2409.01554

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Concepts: LAMOST, Quasar, Variation (astronomy), Constant (computer programming), Astrophysics, Physics, Geology, Computer science, Galaxy, Programming language, Stars

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