Synchrotron emission from circumstellar disks around massive stars

Details Synchrotron emission from circumstellar disks around massive stars Synchrotron emission from circumstellar disks around massive stars

2004-02-11

arxiv.org/abs/astro-ph/0402251v1

Astron.Astrophys. 418 (2004) 1045-1050

Astronomy and Astrophysics

Astrophysics

7 pages, no figs, accepted in A&A

Scientific paper

10.1051/0004-6361:20035923

We argue that the interaction of stellar wind with the surface of a circumstellar accretion (or protoplanetary) disk can result in the acceleration of relativistic electrons in an external layer of the disk, and produce synchrotron radiation. Conservative estimates give a total synchrotron luminosity $L_s\sim 10^{-5}\lsun$ for a central star with $\dot M=10^{-6}\msun$ yr$^{-1}$, comparable with the value observed around the TW object in the W3(OH) region.

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