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Institut d'Astrophysique et
de Géophysique (Bât. B5c)
Quartier Agora
Allée du 6 août, 19C
B-4000 Liège 1 (Sart-Tilman)
Belgique
Tel.: 04.366.9779
Fax: 04.366.9729
de Géophysique (Bât. B5c)
Quartier Agora
Allée du 6 août, 19C
B-4000 Liège 1 (Sart-Tilman)
Belgique
Tel.: 04.366.9779
Fax: 04.366.9729
Séminaires : Documents
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Joy Nichols, <jnichols@cfa.harvard.edu>
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SANS L'ACCORD PRÉALABLE DE L'AUTEUR :
Joy Nichols, <jnichols@cfa.harvard.edu>
19ème séminaire : Jeudi 17 novembre, 15h45
Tracking the jet production and outbursts in the symbiotic object R Aqr
Joy Nichols (Harvard Smithsonian Center for Astrophysics)
The nearby interacting symbiotic binary system R Aqr is being investigated with a multi-year, multi-wavelength campaign from X-ray to radio. R Aqr, composed of a white dwarf accreting from the wind of the companion red giant, has a complex system of fossil shells and lobes from previous outbursts and collimated jet ejection, allowing us to trace the history of these events. In addition, evidence of very recent jet production implies current activity on a time scale of a few years, or even months. Analysis of R Aqr can lead us to a better understanding of all types of jet-producing objects, including AGN. Data from Chandra X-ray Observatory, XMM, HST, FUSE, GALEX, ground-based narrow band imagery, and radio are presented.
Joy Nichols (Harvard Smithsonian Center for Astrophysics)
The nearby interacting symbiotic binary system R Aqr is being investigated with a multi-year, multi-wavelength campaign from X-ray to radio. R Aqr, composed of a white dwarf accreting from the wind of the companion red giant, has a complex system of fossil shells and lobes from previous outbursts and collimated jet ejection, allowing us to trace the history of these events. In addition, evidence of very recent jet production implies current activity on a time scale of a few years, or even months. Analysis of R Aqr can lead us to a better understanding of all types of jet-producing objects, including AGN. Data from Chandra X-ray Observatory, XMM, HST, FUSE, GALEX, ground-based narrow band imagery, and radio are presented.
