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Numerical Aspects of Extended Curve of Growth

By Rehan Butt


In curve of growth, traditionally equivalent width is found for absorption lines of Gaussian, Lorentz and Voigt profile against flat continuum. Here, absorption against non-flat distributions is examined. These non-flat distributions are Gaussian and Lorentz distribution. Analytically equivalent widths for absorption against non-flat continuum are complicated integrals. It is impossible to solve these integrals analytically so I have solved them numerically. At low μ the absorption is independent on profile while the growth of absorption depends on profile at high μ, where μ is width

Topics: rb, 1114
Publisher: Blekinge Tekniska Högskola, Sektionen för ingenjörsvetenskap
Year: 2013
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