Studying the atomic and molecular hydrogen mass (MHI, MH2) properties of the extragalactic spectra
Other Title(s)
دراسة خصائص كتلة الهيدروجين الذري و الجزيئي (MHI, MH2) لأطياف المجرات الخارجية
Author
Source
Issue
Vol. 61, Issue 5 (31 May. 2020), pp.1233-1243, 11 p.
Publisher
University of Baghdad College of Science
Publication Date
2020-05-31
Country of Publication
Iraq
No. of Pages
11
Main Subjects
Abstract EN
The purpose of this study is to deal with dust and interstellar molecular and atomic gas owing to obtaining a proportion of cold gas to dust and to understand the characteristics of the molecular gas in extragalactic data selected from the Herschel SPIRE/ FTS archive.
The physical properties of a sample of 65 extragalactic spectra characterized by the activity of star formation were discussed in this work.
Statistical analyses, using STATISTICA program, were made for the content of cold gas (MHI, MH2), dust mass (Mdust), cold temperature of dust (Td) and luminosities in Far-infrared to CO line radiations, while coefficients of partial correlation within those characteristics were established.
The results showed that the molecular hydrogen mass (MH2) is strongly correlated with the HI or the total gas mass corresponding to the Far-infrared emission (LFIR) resulting from dust in the galaxies molecular clouds.
The results also indicated that these kinds of galaxies have large molecular mass as well as high star formation efficiency per unit mass.
American Psychological Association (APA)
Al Najm, Muhammad Naji. 2020. Studying the atomic and molecular hydrogen mass (MHI, MH2) properties of the extragalactic spectra. Iraqi Journal of Science،Vol. 61, no. 5, pp.1233-1243.
https://search.emarefa.net/detail/BIM-970231
Modern Language Association (MLA)
Al Najm, Muhammad Naji. Studying the atomic and molecular hydrogen mass (MHI, MH2) properties of the extragalactic spectra. Iraqi Journal of Science Vol. 61, no. 5 (2020), pp.1233-1243.
https://search.emarefa.net/detail/BIM-970231
American Medical Association (AMA)
Al Najm, Muhammad Naji. Studying the atomic and molecular hydrogen mass (MHI, MH2) properties of the extragalactic spectra. Iraqi Journal of Science. 2020. Vol. 61, no. 5, pp.1233-1243.
https://search.emarefa.net/detail/BIM-970231
Data Type
Journal Articles
Language
English
Notes
Text in English ; abstracts in English and Arabic.
Record ID
BIM-970231