Relative magnitudes and phases of bremsstrahlung and cyclotron cooling from off-axis accretion shocks onto magnetic white dwarfs

العناوين الأخرى

الأقدار و الأطوار النسبية لإشعاع الكبح و التبريد السيكلوتروني من صدمات التركام اللامحورية في الاقزام البيض المغناطيسية

مقدم أطروحة جامعية

al-Busul, Mutazz Husayn Muhammad

مشرف أطروحة جامعية

Umari, Husayn Yusuf Rashid
Sabat, Hanna Antoine

أعضاء اللجنة

Kandalyan, Rafiq A.
Rabi, Iqab Mahmud
Batayinah, Barakat

الجامعة

جامعة آل البيت

الكلية

معهد الفلك و علوم الفضاء

دولة الجامعة

الأردن

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2009

الملخص الإنجليزي

The thesis is a calculation of relative magnitudes and relative phases for Bremsstrahlung and cyclotron emissions from radiative accretion shocks onto binary Magnetic white dwarf star.

The calculation is being performed for a 3.0 solar mass star MS, having a magnetic field B* = 30MG and accretion rate of L acc = 3.2 x 10-3 LEdd.

Here LEdd is the Edenton accretion luminosity.

Eddington luminosity (sometimes also called the Eddington limit) which is defined as the point where the gravitational force inwards equals the continuum radiation force outwards, assuming hydrostatic equilibrium and spherical symmetry.

Using the mass-luminosity relation, it can be used to set limits on the maximum mass of a star.

If the luminosity of a star exceeds the Eddington luminosity of a layer on the stellar surface, , a star would initiate a very intense continuum driven stellar wind from its outer layers.

The phenomenon is named in honor of Sir Arthur Stanley Eddington. Individual off-axis accretion funnels are being investigated corresponding to radii at which field lines strike the equatorial plane (a o = r eq / R = 50, 33, 25, 20, 14 and 10).

التخصصات الرئيسية

الفلك و علومه

عدد الصفحات

76

قائمة المحتويات

Table of contents.

Abstract.

Chapter One : introduction.

Chapter Two : background.

Chapter Three : physical picture and numerical model.

Chapter Four : results and discussion.

References.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

al-Busul, Mutazz Husayn Muhammad. (2009). Relative magnitudes and phases of bremsstrahlung and cyclotron cooling from off-axis accretion shocks onto magnetic white dwarfs. (Master's theses Theses and Dissertations Master). Al albayt University, Jordan
https://search.emarefa.net/detail/BIM-314957

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

al-Busul, Mutazz Husayn Muhammad. Relative magnitudes and phases of bremsstrahlung and cyclotron cooling from off-axis accretion shocks onto magnetic white dwarfs. (Master's theses Theses and Dissertations Master). Al albayt University. (2009).
https://search.emarefa.net/detail/BIM-314957

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

al-Busul, Mutazz Husayn Muhammad. (2009). Relative magnitudes and phases of bremsstrahlung and cyclotron cooling from off-axis accretion shocks onto magnetic white dwarfs. (Master's theses Theses and Dissertations Master). Al albayt University, Jordan
https://search.emarefa.net/detail/BIM-314957

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-314957