The mass transfer in binary stars systems
Other Title(s)
انتقال الكتلة في أنظمة النجوم الثنائية
Dissertant
al-Hamdani, Muhammad Rida Abd al-Amir
Thesis advisor
University
University of Baghdad
Faculty
College of Science
Department
Astronomy and Space Department
University Country
Iraq
Degree
Master
Degree Date
2005
English Abstract
Studying the phenomena of mass transfer from primary star to the secondary in the binary stellar systems is an important case in the study of the stellar evolution in particular, of all different types of binary stars especially the eclipsing system.
There are various models suggested to interpret this phenomenon; such as Roche model ; as well as the model of the stellar winds, which is a rather complicated model.
The aim of this study is to calculate the mass transfer rate and the time average of this rate between the two stars in a binary system and to find the volume and the radius of the accretion disk in the secondary star .
Many kinds of stellar systems have been processed.
For each one there was a unique time average of the mass transfer in addition to calculating Roche's radius for a group of binary stars systems and as a result of the phenomena of mass transfer , calculating the change in the distance between the two stars in the system and calculating the change in the orbital period for the binary system has been studied.
The technique of calculating the time average for the overflow and mass transfer has been chosen from noticing the change in the orbital period for the secondary stars .
The results and conclusions of new empirical formula for the radius of the accretion disk of the secondary stars have been investigated .
The additional modified criterion of the mass transfer rate has been applied instead of the classical criterion for Roche model
Main Subjects
No. of Pages
77
Table of Contents
Table of contents.
Abstract.
Abstract in Arabic.
Chapter One : Introduction.
Chapter Two : Mass transfer theory.
Chapter Three : Calculations and discussion.
Chapter Four : Conclusions and future work.
References.
American Psychological Association (APA)
al-Hamdani, Muhammad Rida Abd al-Amir. (2005). The mass transfer in binary stars systems. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-603324
Modern Language Association (MLA)
al-Hamdani, Muhammad Rida Abd al-Amir. The mass transfer in binary stars systems. (Master's theses Theses and Dissertations Master). University of Baghdad. (2005).
https://search.emarefa.net/detail/BIM-603324
American Medical Association (AMA)
al-Hamdani, Muhammad Rida Abd al-Amir. (2005). The mass transfer in binary stars systems. (Master's theses Theses and Dissertations Master). University of Baghdad, Iraq
https://search.emarefa.net/detail/BIM-603324
Language
English
Data Type
Arab Theses
Record ID
BIM-603324