Confirming the Magnetic Field Detection at the Surface of <i>χ</i> Cyg

A. Lavail; A. López Ariste; Quentin Pilate; P. Mathias; F. Herpin; A. Lèbre

doi:10.3847/2515-5172/ae290e

Abstract

Abstract We present spectropolarimetric observations of χ Cygni obtained with Neo-Narval at Télescope Bernard Lyot in 2025. We obtained observations across three epochs (2025 July, August, and October) near maximum light to search for magnetic field signatures at the stellar photosphere. We detected a clear circular polarization signal in the 2025 August observations (pulsation phases 0.99–0.01). We measure a mean longitudinal magnetic field of B l = 3.4 ± 0.6 G. No detections were obtained for the 2025 July and October epochs. The pulsation-phase dependence suggests that field detection is tied to specific shock conditions near maximum light.

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Publication Info

Year: 2025
Type: article
Volume: 9
Issue: 12
Pages: 327-327
Citations: 0
Access: Closed

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APA Style

                            
                                
                                    A. Lavail, 
                                
                                    A. López Ariste, 
                                
                                    Quentin Pilate
                                
                                et al.
                            
                            (2025). 
                            Confirming the Magnetic Field Detection at the Surface of <i>χ</i> Cyg. 
                            Research Notes of the AAS
                            , 9
                            (12)
                            , 327-327.
                            https://doi.org/10.3847/2515-5172/ae290e
                        

Identifiers

DOI: 10.3847/2515-5172/ae290e