![](/images/graphics-bg.png)
Identification of dust composition toward the galactic center source GC-IRS7
Other Title(s)
معرفة تركيب الغبار باتجاه المصدر (GC-IRS) في مركز المجرة
Joint Authors
Majid, Qasim Shawkat
al-Mshalab, Muwaffaq Fadil
Source
Issue
Vol. 44, Issue 1 (31 Dec. 2003), pp.39-48, 10 p.
Publisher
University of Baghdad College of Science
Publication Date
2003-12-31
Country of Publication
Iraq
No. of Pages
10
Main Subjects
Abstract EN
Several models have been presented for identification of the composition of interstellar dust during more than halfa century.
We discuss here the composition of dust along the sight toward the source GC-IRS 7 at the (9.7)micron.
We have analyzed dust absorption feature arising in the diffuse interstellar medium in this region in terms of inorçanic an biological materials.
The transmittance values that have been obtained from IR spectra of the samples were carried forward to opticdeth values and transformed to flux density by using Plank’s function.
This flux densit were compared with the flux density of 1RS 7, it has been found that the best agreement between the flux density of 1RS 7 and a mixture contains of; (Diatom Silica, E.co/i Bacteria, Murchison Meteorite and Silicon Dioxide).
This means that there is a thump print of biological material on the composition of dust grains of GC -IRS7.
American Psychological Association (APA)
Majid, Qasim Shawkat& al-Mshalab, Muwaffaq Fadil. 2003. Identification of dust composition toward the galactic center source GC-IRS7. Iraqi Journal of Science،Vol. 44, no. 1, pp.39-48.
https://search.emarefa.net/detail/BIM-594893
Modern Language Association (MLA)
Majid, Qasim Shawkat& al-Mshalab, Muwaffaq Fadil. Identification of dust composition toward the galactic center source GC-IRS7. Iraqi Journal of Science Vol. 44, no. 1 (2003), pp.39-48.
https://search.emarefa.net/detail/BIM-594893
American Medical Association (AMA)
Majid, Qasim Shawkat& al-Mshalab, Muwaffaq Fadil. Identification of dust composition toward the galactic center source GC-IRS7. Iraqi Journal of Science. 2003. Vol. 44, no. 1, pp.39-48.
https://search.emarefa.net/detail/BIM-594893
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 47
Record ID
BIM-594893