Scaled models, scaled frequencies, and model fitting
Scaled models, scaled frequencies, and model fitting
复制标题
缩放模型、缩放频率和模型拟合
DOI:
10.1051/0004-6361/201527447
复制
发表时间:
2015
影响因子:
6.5
通讯作者:
Roxburgh I
中科院分区:
文献类型:
--
作者:
Roxburgh I
I show that given a model star of massM, radiusR, and density profileρ(x) [x=r/R], there exists a two parameter family of models with massesMk, radiiRk, density profileρk(x) =λρ(x) and frequencies νknℓ=λ1/2νnℓ, whereλ,Rk/RAare scaling factors. These models have different internal structures, but all have the same value of separation ratios calculated at given radial ordersn, and all exactly satisfy a frequency matching algorithm with an offset function determined as part of the fitting procedure. But they do not satisfy ratio matching at given frequencies nor phase shift matching. This illustrates that erroneous results may be obtained when model fitting with ratios at givennvalues or frequency matching. I give examples from scaled models and from non scaled evolutionary models.
影响因子:
6.5
作者:
I. Roxburgh
通讯作者:
I. Roxburgh
影响因子:
6.5
作者:
Roxburgh I
通讯作者:
Roxburgh I
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
I. Roxburgh
通讯作者:
I. Roxburgh