ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A method of ‘multi-cloud model’ (MCM) is proposed in this paper in order to research asymmetric profiles of spectral line formed by solar discrete active objects aligned along the line-of-sight difection. Based on the MCM method, under the conditions of certain assumptions and approximations, the line-of-sight velocityV and three other physical parameter approximation values, (i.e. Doppler width Δλ D , source functionS and optical depth at line center τ0) within different ‘clouds’ may be derived simultaneously by fitting both profiles theoretical and observational. An application example of the method withm=3 shows that MCM method is suitable to measure the velocity fields of multi-object at the same time from their non-Gaussian profiles of complex. TheV and Δλ D derived from the method are reliable,S and τ0 are approximation. An influence of the variations of initial values in the parameter on the solution is given as well.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00639591
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