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Document Details
Document Type
:
Article In Journal
Document Title
:
Determination of Intrinsic Color Indices of Globular Clusters and the Coefficients of Differential Absorption
تعيين العاملات اللونية الذاتية للحشود الكروية ومعاملات الامتصاص الجزئية
Subject
:
Astronomy
Document Language
:
English
Abstract
:
A simple model for the galactic absorbing layer is used to derive linear representation of the observed color index of a globular cluster. Selection and solution criteria enable us to determine very accurately the mean intrinsic color indices of globular clusters as (B-V)o = 0.582344 mag; (U-B)o = 0.033909 mag; (V-I)o = 0.798231 mag; (V- R)o 0.413043 mag. Also, from the slope of such linear representation we compute: (1) the effective thickness of the galactic absorbing layer which turn out to be 200 pc, is the value currently adopted, and (2) the values of the coefficients of differential absorption as ku ? kb = 0.724 mag/kpc, kv ? ki = 0.81549 mag/kpc and kv ? kr = 0.33189 mag/kpc.
ISSN
:
1012-1319
Journal Name
:
Science Journal
Volume
:
13
Issue Number
:
1
Publishing Year
:
1421 AH
2001 AD
Number Of Pages
:
17
Article Type
:
Article
Added Date
:
Sunday, October 11, 2009
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
ياسين المليكي
Y. M. ALMLEAKY
Researcher
محمد عادل شرف
M. A. SHARAF
Researcher
عبدالرحمن ملاوي
A. A. MALAWI
Researcher
حسن باصرة
H. M. BASURAH
Researcher
عدنان جوهرجي
A. A. GOHARJI
Researcher
Files
File Name
Type
Description
22534.pdf
pdf
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