Документ взят из кэша поисковой машины. Адрес оригинального документа : http://star.arm.ac.uk/~csj/software_store/sfit_example5/bd10_synth.sfit Дата изменения: Thu Oct 21 12:40:56 2004 Дата индексирования: Tue Oct 2 17:12:13 2012 Кодировка: Поисковые слова: zodiacal light

!+
!
! bd10_synth.sfit
! An SFIT input file
!
! Purpose:
!= compute abundances for BD+10 2179
! using lines in the wavalength range: 3700 4830
! a high resolution echelle spectrum
! and assuming an old LTE model helium star atmosphere (1725L.q)
!
! Mode:
! SYN / LEVENBURG / HIRES
!
! Method:
! Read in a model atmosphere and assume a set of starting abundances
! Read in a hires optical spectrum and mask out lines to be ignored
! Synthesize hires spectrum
! Use levenburg-marquardt method to optimize selected abundances
!
! Version:
! 2004-Oct-14 (CSJ)
! 2004-Aug-17 (GJP: original)
!
! Notes:
! input for SFIT version 2.5 or later
!
!-

echo on

sterne /electra/models/h00he99c003/t180g300he90L.q

method_levenburg
method_range 4052 4548
method_tolerance 0.002


! restrict the wavelength range to save computing time

method_range 4100 4400


data_spectrum bd10op.sp2 ! file name
data_sigma 0.007
data_instrument 0.10 ! instrumental profile FWHM (Angstroms)
data_cosmic 1.2 ! threshold for cosmic ray rejection


! Variable:
syn_vsini 25. 10.0 ! set the rotational broadening,
syn_vrad1 136.4 10.0 ! set the radial velocity

!Fixed:
syn_vturb 3.65 ! Fixed: Pandey's value.


! Mask braod HeI lines from fit...
! since the HeI line wings don't fit in this model,
! other lines will be affected

mask{
3
4130 4160 100
4370 4410 100
4450 4490 100
}

! Test mode:
! a) just calculate a spectrum with fixed abundances
! b) Solve for carbon abundance
! c) Solve for all light elements

abundances {
1 8.53 0.0
2 11.54 0.0
5 0.10 0.0
6 8.00 1.0
7 7.81 1.0
8 7.10 1.0
12 7.01 1.0
13 5.73 1.0
14 6.94 1.0
15 5.50 1.0
16 6.75 1.0
18 6.10 1.0
20 5.10 1.0
21 1.70 0.0
22 3.84 0.0
23 2.82 0.0
24 4.06 0.0
25 3.71 0.0
26 6.18 0.0
27 4.26 0.0
28 5.05 0.0
29 3.20 0.0
30 4.34 0.0
39 1.42 0.0
40 2.40 0.0
-1 0 0
}


synth

save

end