Multiwavelength Observations of a Jet Launch in Real Time from the Post-changing-look Active Galaxy 1ES 1927+654
| Title: | Multiwavelength Observations of a Jet Launch in Real Time from the Post-changing-look Active Galaxy 1ES 1927+654 |
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| Authors: | Laha S; Meyer ET; Sadaula DR; Ghosh R; Sengupta D; Masterson M; Shuvo OI; Guainazzi M; Ricci C; Begelman MC; Philippov A; Mbarek R; Hankla AM; Kara E; Panessa F; Behar E; Zhang H; Pacucci F; Pal M; Ricci F; Villani I; Bisogni S; Franca FL; Bianchi S; Bruni G; Oates S; Hahn C; Nicholl M; Cenko SB; Chattopadhyay S; Gonzalez JB; Acosta-Pulido JA; Rakshit S; Svoboda J; Gallo L; Ingram A; Kakkad D |
| Source: | Astrophysical Journal, 10 March 2025 |
| Publisher Information: | Institute of Physics |
| Publication Year: | 2025 |
| Collection: | Newcastle University Library ePrints Service |
| Description: | © 2025. The Author(s).We present results from a high-cadence multiwavelength observational campaign of the enigmatic changing-look active galactic nucleus 1ES 1927+654 from 2022 May to 2024 April, coincident with an unprecedented radio flare (an increase in flux by a factor of ∼60 over a few months) and the emergence of a spatially resolved jet at 0.1–0.3 pc scales. Companion work has also detected a recurrent quasi-periodic oscillation (QPO) in the 2–10 keV band with an increasing frequency (1–2 mHz) over the same period. During this time, the soft X-rays (0.3–2 keV) monotonically increased by a factor of ∼8, while the UV emission remained nearly steady with |
| Document Type: | article in journal/newspaper |
| Language: | unknown |
| Relation: | https://eprints.ncl.ac.uk/305134 |
| Availability: | https://eprints.ncl.ac.uk/305134 |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: | edsbas.887A301F |
| Database: | BASE |