Essays on Supernovae

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[Date Month Year]

Neutron Stars: The ‘Death’ of a Death Star

Introduction: Neutron stars are dense, compact masses of subatomic particles (called ‘fermions’) compressed by great gravitational forces (Reisenegger 1). They are classified into three groups: the radio pulsars, which are rotating neutron stars that are predictable pulsators of radio waves due to its fast (Landau n. p.; Reisenegger 2) although sometimes slow (Fuller, et al. 1) rotation; magnetars, which neutron stars with the strongest magnetic fields in the universe and violently burst high-energy X-ray and gamma rays (Landau n. p.); nonrotating binary neutron stars, which are emitters of x-rays (Reisenegger 3); and PSR ...

The purpose of this paper is to develop a fundamental idea about the phenomenon of Supernovae and their significance in understanding the nature of our universe. This paper shall be trying to make an in-depth analysis of different types of supernovae that had been observed in universe and also the factors that cause them. Even though the paper does not go deeper into the technical aspects of observing supernovae and the characteristics of their each type, a significant amount of study has been conducted to make an understanding of how they are observed and the characteristics that make each ...

Question #1

Three main layers of the interior of the Sun are convection zone, radiation zone and the core.The central part of the Sun with a radius of about 150-175 thousand km (ie, 20-25% of the radius of the Sun), in which are thermonuclear reactions, called a solar core. The density of material in the core is about 150 000 kg / m ³ (150 times higher than the density of water and ~ 6.6 times higher than the density of the densest metal on the Earth - osmium), and the temperature in the center of the core is over 14 million K. A ...

- Where in the Galaxy is the solar system located? a. in the nucleus, b. in the halo, c. in a spiral arm, d. between two spiral arms, e. in the central bulge

Our solar system is located in one of the two major spiral arms of the disk-shaped Milky Way Galaxy. It is not located in the center or nucleus of Galaxy because the supermassive black hole Sagittarius A*, because of its tremendous gravitational force, make it possible for clusters to remain intact. In the halo of a galaxy, there are mostly spherical distribution of globular clusters, dark matters, and isolated stars. If between the two spiral arms, it is tantamount to saying that our Galaxy is at its nucleus. At the central bulge, it is made mainly of gas, dust, and ...

Since the beginning of mankind, people have looked to the stars and space in amazement. It has been the inspiration for people to think about the origins and ends of life, or just marvel in its beauty. As technology has increased in the twenty first century, our wonder has turned from a distanced admiration to a more close and nuanced study and understanding of what surrounds us. One of the most beautiful and fascinating objects in space is a star. Just like anything else in the universe, stars eventually succumb to their own deaths and exhaust their energy, emitting a bright explosion known ...

The term ‘nova’ is the Latin name for a new star and was first used in 1573 by Tycho Brahe, a Danish astronomer. No matter how bright a new star can be, its brightness lasts for a span of weeks and then fades to obscurity. A novae normally occurs in binary systems where a normal star transfers matter onto a white dwarf. One of the major processes that occur is the piling of hydrogen onto the dwarf an aspect that generates heat. The heating continues especially on the outer layer as the dwarf ignites in a runaway. This causes a thermonuclear reaction that blows off the accumulated hydrogen ...

Abstract

The universe contains 100 billion galaxies. Each of these galaxies has billions of stars, great gas and dust clouds with others having scads of moons and planets. The stars release an abundance of energy either from radio waves, X-rays or from other forms of energy that run at a speed of light across the universe. However, all that can be seen is like the tip of the cosmic iceberg and accounts for a small portion of the total energy and mass in the universe. About one-quarter portion of the universe is made up of dark matter that does not release any ...