The Importance of Supernova - Essay Example

Number] Supernova Supernova is when a star that can’t handle its nuclear fuel and thus, explodes ina bright light which increases its brightness greatly. During this event, the brightness of the explosion causes enough light to outshine the entire galaxy of millions and billions of stars. Supernova causes the brightness of light leashed through cosmos, and eventually it is the death of a star with an explosion. These happen in two ways: when stars are out of nuclear fuel and they can’t handle their own weight due to lack of pressure, they collapse. Secondly, when matter piles up on the core of a dead star and an explosion takes place due to sufficient density. Supernovae occur once in a century. The last supernova in our galaxy visible to the unaided eye was seen in 1604. Overall, the supernova studies have proven the universe expansion theory, have helped to discover dark energy and dark matter, and have shown that supernovae are the main source of specific elements. There have been many social scientists that have included the study of supernova in their research and methodologies. For instance Douglas (507) has carried out a research on some of the unanswered questions about supernova. Even though it is evident that a number of other scientists have talked about supernova, Douglas (513) has answered some of the critical questions such as what shape are the supernovae. The main subject of his source is basically the geometry of the supernovae. The geometry of the explosive stars remains a difficult subject because supernovae are so distant that they are almost invisible in our galaxy. The observations of the normal type of supernovae show that the result of the explosion mechanism is non-spherical (Douglas 505). The objective approach of the author allows us to understand the physical mechanism of the supernovae which is essential when further studying about its discoveries. Other scientists and theorists have talked about the discoveries, observations and effects of supernovae but Douglas covered some of the major aspects which make his work impressively helpful. Qian (277) holds the research based on the r-process of the nuclei in context of supernovae processes in general. The article carried out the research for the processes of supernova in regard to the nuclear reactions, nucleosynthesis and elementary practises (Qian 285). Qian (1998) evaluated the r-process in his main argument and the inventory of the black holes from the ejection of the material terminated from the r-process (Qian 278). The article further talks about the chemical and physical properties of the r-process and the release of neutrons in the galaxy because of the process. The research focuses on the chemical aspects and formulae of the r-process, and thus it seems to be less useful to evaluate the study of supernovae (Qian 285). It talks about supernovae in general only. The source remains on the r-process whereas other authors talk about the discoveries made through the supernovae. The research fits to the topic as it conclusively defines the r-process and the inventory of the black holes (Qian 285). Linder (4) carries a research on the importance of supernovae in regard to the dark energy which is dominating the dynamics of the universe. Linder (2003) writes in regard to the current accelerating expansion taking place in the universe because of supernovae (Linder 5). The expansion theory as a result of the supernovae thus proves that dark energy, the component of strong negative pressure, dominates the universe. Moreover, there are methods given to explore the nature of the dark energy by mapping the history of expansion of the supernovae (Linder 5). A comprehensive survey has taken place to describe the dark energy, its state and its range. The source is immensely useful as it talks about the expansion theory, its history and its relation to the dark energy which is an important aspect in the physical science today (Linder 5). The study is objective and it is helpful to understand one of the major aspects related to the supernova study. Aldering (146) based the research on a very important topic which talked about SNAP, SuperNova / Acceleration Probe, and it is a part of astrophysics. SNAP is an experiment which is based on the space and is used to measure the universe expansion history and focuses on the study of dark energy and dark matter. SNAP was initiated by the discovery of the universe expansion. The experiment carries out many aspects of physics and chemistry talking about the elements and their operations (Aldering 148). The mission is to however achieve a range of dark energy and dark matter with the examination of its nature. It tests the equation of its state, its nature and the amount of dark energy released (Aldering 151). The objectivity of this source is highly important as compared to others because it covers the study of the dark energy and dark matter in detail physically and theoretically. It is greatly helpful to understand the expansion of the universe and the relation of the supernovae to dark energy and dark matter. Padmanabhan (193), on the other hand, researches about the limitations in the determination of the nature of dark energy. The main topic covered is cosmology under which aspects of supernovae and dark energy are considered. He argues that the observations of cosmology show that dark energy exists strongly with negative pressure (Padmanabhan 830). However, the cosmological constant creates several limitations and difficulties. Thus, Padmanabhan (193) analysed that models of dark energy evolve with time, and makes it evident that there are many theoretical limitations to the determination of dark energy (Padmanabhan 830). This source is immensely important and helpful because it unfolds an aspect that other scientists did not. The author gives immense reasons and evidences about the nature of dark energy, in the light of science and theory. The author has an objective goal towards the study and remains on the track for his argument till the end. It helps in this research as it adds to the fact that the nature of dark energy could not be fully determined by the expansion history of the universe, and SNAP experiments. Frieman (21) held a research which focused on the main recent arguments about dark energy transmitted through the elements of supernova. Frieman (2008) talks about the most recent discoveries that is different than those analyzed ten years ago. The research analyzes that the expansion of universe is accelerating and the universe contains 76% of dark energy (Frieman 23). The research unfolded a mystery of science that has deep connections with astrophysics and particle physics. The repulsive gravity of dark energy is the result how cosmic acceleration is raised. Frieman (30) discusses the revelations of dark energy presenting evidence for cosmic acceleration, the theoretical ideas proposed for acceleration and the future light on this enigma. It is a useful source as it focuses on the current developments and ideas which are essential to uncover since the sciences are growing rapidly. Weller (87), lastly, analyzes the future opportunities of the supernova studies. The research analyzes the future potentials of the supernova data set which are expected to be achieved from the SNAP experiments. The dark energy theories are distinguished from the supernova data set in order to describe the accelerating universe. Models are presented and a scientific approach to the future potentials is given. Several searches from supernova data sets are presented (Weller 88). The source is a useful source because of the focus on the future potentials and models of supernova and cosmic accelerations. The study is objective and provides the scientific and theoretical features of the expansion. The research provides a useful conclusion to the topic as to regarding the future approach to the supernova processes and experiments. In conclusion, all the sources provide implied information and knowledge regarding the different approaches towards supernova studies. These studies have resulted in various discoveries and allowed many aspects of cosmology, chemistry, physics and astrophysics to unfold the expansion of the universe. Work Cited Aldering, Greg. 2002. Overview of the SuperNova/Acceleration Probe (SNAP). USA: Cornell University Library. Print. Douglas, Leonard. 2006. A non-Spherical core in the explosion of supernova SN. USA: Nature Publishing Group. Print. Frieman, Joshua. 2008. Dark Energy and the Accelerating Universe. USA: Cornell University Library. Print. Linder, Eric. 2003. Importance of supernovae at z>1.5 to probe dark energy. USA: American Physical Society. Print. Padmanabhan, Thanu. 2003. A theoretician’s analysis of the supernova data and the limitations in determining the nature of dark energy. USA: John Wiley & Sons. Print. Qian, Yong-Zhong. 1998. Diverse Supernova Sources for the r-Process. China: IOP Publishing. Print. Weller, Jochen. 2001. Opportunities for Future Supernova Studies of Cosmic Acceleration. USA: American Physical Society. Print. Read More