GAIA GRAL: GAIA DR2 GRAVITATIONAL LENS SYSTEMS. VI. SPECTROSCOPIC CONFIRMATION AND MODELING OF QUADRUPLY-IMAGED LENSED QUASARS
收藏DataCite Commons2023-09-15 更新2025-04-16 收录
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https://dataverse.jpl.nasa.gov/citation?persistentId=doi:10.48577/jpl.HLB4SF
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资源简介：
Combining the exquisite angular resolution of Gaia with optical light curves and WISE photometry, the Gaia Gravitational Lenses working group (GraL) uses machine learning techniques to identify candidate strongly lensed quasars, and has confirmed over two dozen new strongly lensed quasars since 2018. This paper reports on the 12 quadruply-imaged quasars identified by this effort to date, which is a ∼ 20% increase in the number of confirmed quadruply-imaged quasars. We discuss the candidate selection, spectroscopic follow-up, and lens modeling. We also report the spectroscopic failures as an aid for future investigations.
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Root
创建时间：
2023-09-14
