A Comment on Contribution Functions,

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Abstract:

The contribution function for emergent radiation in spectral lines is the integrand of the equation of transfer. Numerical examples are used to compare this and various types of contribution functions that refer to the line contrast. It is seen that only for the integrand of the equation of transfer does the maximum occur where the total optical depth equals 1, i.e. near the height of formation of the observed radiation for both weak and strong lines. Author

Author(s):
Sorli, H. ; Engvold, O.
Author Organization(s):
OSLO UNIV (NORWAY) INST OF THEORETICAL ASTROPHYSICS
Supplementary Note:
Reprint of rept. no. 37 in the report series of the Inst. of Theoretical Astrophysics, Oslo (Norway).
Pagination:
0010

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFCRL-TR-73-0148
Contract/Grant Number(s):
AF-AFOSR-2294-72
Task Number(s):
764906
Project Number(s):
AF-7649
Monitor Series:
TR-73-0148
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*SOLAR SPECTRUM, MATHEMATICAL ANALYSIS), LINE SPECTRA, FUNCTIONS(MATHEMATICS), NORWAY
Field(s)/Group(s):
Astrophysics
Report Date:
1972 Oct 31