Propagation and Transmission of Alfven Waves in Rotating Magnetars | Zendy

Yasufumi Kojima | Zendy; Taishi Okita | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Propagation and Transmission of Alfven Waves in Rotating Magnetars

Author(s) -

Yasufumi Kojima,

Taishi Okita

Publication year - 2004

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/423706

Subject(s) - physics , polar , context (archaeology) , rotation (mathematics) , magnetic field , pulsar , magnetar , wave propagation , transmission (telecommunications) , computational physics , amplitude , astrophysics , condensed matter physics , optics , geometry , geology , electrical engineering , engineering , quantum mechanics , paleontology , mathematics , astronomy

We study the propagation and transmission of Alfven waves in the context ofcylindrical geometry. This approximates the polar cap region of aligned pulsarwith strong magnetic fields. Non-propagating region appears in the presence ofrotation. The displacement current further prevents the low frequency modesfrom propagating near the stellar surface. The transmission rates to theexterior through the surface are calculated. The rates increase with thefrequency and the magnetic field strength. The transmission also depends on thehelicity states of the waves, but the difference becomes small in the highfrequency regime. We also point out the possibility of the spin-up by outgoingwave emission in the low frequency regime, if a certain condition holds.Comment: 16 pages, 3 figures, Accepted in Ap

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research