Extreme Variability Quasars in Their Various States. II. Spectral Variation Revealed with Multiepoch Spectra
We previously built a sample of 14,012 extremely variable quasars (EVQs) based on Sloan Digital Sky Survey (SDSS) and Pan-STARRS1 photometric observations. In this work we present the spectral fitting to their SDSS spectra and study the spectral variation in 1259 EVQs with multiepoch SDSS spectra (a...
| Main Authors: | , , , |
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| 格式: | Article |
| 語言: | English |
| 出版: |
IOP Publishing
2024-01-01
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| 叢編: | The Astrophysical Journal |
| 主題: | |
| 在線閱讀: | https://doi.org/10.3847/1538-4357/ad17cb |