A Reemerging Bright Soft X-Ray State of the Changing-look Active Galactic Nucleus 1ES 1927+654: A Multiwavelength View
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| Abstract |
1ES1927+654 is a nearby active galactic nucleus (AGN) that has shown an enigmatic outburst in optical/UV followed by X-rays, exhibiting strange variability patterns at timescales of months to years. Here we report the unusual X-ray, UV, and radio variability of the source in its postflare state (2022 January–2023 May). First, we detect an increase in the soft X-ray (0.3–2 keV) flux from 2022 May to 2023 May by almost a factor of 5, which we call the bright soft state. |
| Year of Publication |
2023
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| Date Published |
2023-09
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| Journal Title |
The Astrophysical Journal
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| Volume |
955
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| Start Page or Article ID |
3
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| DOI | |
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| JILA PI | |
Journal Article
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| Publication Status |
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