The Instabilities of Eta Carinae - The Erupting Binary Star System

Y. Hrushikesh¹

1. B.Sc (Hons) Physics, MS Ramiah University of Applied Sciences, Bangalore, India.

Section:Research Paper, Product Type: Journal-Paper
Vol.11 , Issue.4 , pp.19-25, Aug-2023

Online published on Aug 31, 2023

Copyright © Y. Hrushikesh . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
This study explores the intriguing properties and variability of Eta Carinae, a massive binary star system, focusing on its emission characteristics and instabilities. This study considers stability conditions based on the star’s semi major axis, Roche lobe overflow, Kepler’s third law. The study aims to deepen our understanding of Eta Carinae`s behavior by comparing it with cataclysmic variable (CV) stars, specifically focusing on mass transfer processes, thermonuclear reactions, and their implications for mass loss and variability. The study begins by providing an overview of Eta Carinae, highlighting its complex variability and notable events such as the "Great Eruption." It then delves into a comparative analysis between Eta Carinae and CV stars, emphasizing similarities and differences in their mass transfer mechanisms, eruption behaviors, and emission properties. Additionally, the study examines the significance of high-intensity H-alpha lines and other emissions in the spectra of Eta Carinae. It investigates the relation between flux and phase, considering the implications for understanding the mass transfer dynamics and variability of the system.

Key-Words / Index Term :
Eta Carinae, Binary star system, instabilities, eruptions, CV star, Rs Ophiuchi.

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