Bibcode
Graham, J. D.; Lites, B. W.; López Ariste, A.; Norton, A.; Socas-Navarro, H.; Tomczyk, S.
Referencia bibliográfica
American Astronomical Society, 200th AAS Meeting, #56.11; Bulletin of the American Astronomical Society, Vol. 34, p.736
Advertised on:
5
2002
Número de citas
0
Número de citas referidas
0
Descripción
We investigate the diagnostic potential of polarimetric measurements
with filtergraph instruments. Numerical simulations are used to explore
the possibility of inferring the magnetic field vector, its filling
factor, and the thermodynamics of model atmospheres when only a few
wavelength measurements are available. The simulations assume the
magnetic sun to be represented by Milne-Eddington (ME) atmospheres. The
results indicate that two wavelength measurements are insufficient to
reliably determine the magnetic parameters, regardless of whether
magnetograph techniques or least-squares fitting inversions are used.
However, as few as four measurements analyzed with the inversion
technique provide enough information to retrieve the intrinsic magnetic
field with an accuracy better than 10 generated by more general models
and ASP data passed through a simulated filtergraph.