Accretion instabilities and jet formation in GRS 1915+105

We report simultaneous observations in the X-ray, infrared, and radio wavelengths of the galactic superluminal source GRS 1915+105 During episodes of rapid disappearance and follow up replenishment of the inner accretion disk evidenced by the X-ray oscillating flux, we observe the ejection of relati...

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Detalles Bibliográficos
Autores principales: Mirabel, I.F., Dhawan, V., Chaty, S., Rodríguez, L.F., Martí, J., Robinson, C.R., Swank, J., Geballk, T.R.
Formato: JOUR
Materias:
Accretion, accretion disks: stars: individual: GRS 1915+105
Infrared: stars
Radio continuum: stars
Stars: variables
X-rays: stars
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00046361_v330_n1_pL9_Mirabel
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:We report simultaneous observations in the X-ray, infrared, and radio wavelengths of the galactic superluminal source GRS 1915+105 During episodes of rapid disappearance and follow up replenishment of the inner accretion disk evidenced by the X-ray oscillating flux, we observe the ejection of relativistic plasma clouds in the form of synchrotron flares at infrared and radio wavelengths. The expelled clouds contain very energetic particles with Lorentz factors of ∼103, or more. These ejections can be viewed as small-scale analogs of the more massive ejecta with relativstic bulk motions that have been previously observed in GRS 1915+105.

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