An Introduction To Astronomy And Astrophysics By Pankaj Jain
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An Introduction to Astronomy and Astrophysics
Astronomy is the field of science devoted to the study of astronomical objects, such as stars, galaxies, and nebulae. Astronomers have gathered a wealth of knowledge about the universe through hundreds of years of painstaking observations. These observations are interpreted by the use of physical and chemical laws familiar to mankind. These interpretations supply information about the nature of these astronomical objects, allowing for the deduction of their surface and interior conditions. The science associated with these interpretations is called astrophysics. An Introduction to Astronomy and Astrophysics offers a comprehensive introduction to astronomy and astrophysics, complete with illustrative examples and illuminating homework problems. Requiring a familiarity with basic physics and mathematics, this undergraduate-level textbook: Addresses key physics concepts relevant to stellar observations, including radiation, electromagnetic spectrum, photometry, continuous and discrete spectrum, and spectral lines. Describes instruments used for astronomical observations as well as how the radiation received is characterized and interpreted to determine the properties of stars. Examines the structure of stars, the basic equations that explain stars in equilibrium, and the fusion reactions occurring in stellar cores. Discusses the evolution of stars, the solar system, the dynamics of galaxies, and the fundamentals of modern cosmology. Explores the universe at high redshifts, where it is dominated by objects such as active galaxies. An Introduction to Astronomy and Astrophysics teaches students how to interpret the night sky, providing them with a critical understanding of the stars and sun, solar system, extrasolar planets, stars, and galaxies. The book is thoroughly revised to make it an essential textbook for students. The Second edition introduces the following changes: New solutions are provided at the end of all the chapters. The number of problems has increased. Major chapters have been considerably revised and new developments in this field have been introduced.
DECODING STARLIGHT: AN ELEMENTARY TALE OF GENESIS
Author: Dr. Sudipta Das
language: en
Publisher: RED'SHINE Publication. Pvt. Ltd
Release Date:
Our Universe is majestic, magnificent in its splendour and deeply mysterious at the same time. Throughout this book, we shall try to act as Cosmic Detectives. Through careful observation of some very elementary clues scattered across the sky, we try to gradually discover some of the deepest and darkest secrets or mysteries of the Universe. From our familiar shoreline on the Earth, we dare to venture into the harrowing depths of vast unknown Cosmic abyss. Believe me, it will be a fascinating journey indeed!
Models for Physics of the Very Small and Very Large
This monograph tackles three challenges. First, show a mathematics-based meta-model that matches known elementary particles. Second, apply models, based on the meta-model, to match other known physics data. Third, predict future physics data. The math features solutions to isotropic pairs of isotropic quantum harmonic oscillators. This monograph matches some solutions to known elementary particles. Matched properties include spin, types of interactions in which the particles partake, and (for elementary bosons) approximate masses. Other solutions point to possible elementary particles. This monograph applies the models and the extended particle list. Results narrow gaps between physics data and theory. Results pertain to elementary particles, astrophysics, and cosmology. For example, this monograph predicts properties for beyond-the-Standard-Model elementary particles, proposes descriptions of dark matter and dark energy, provides new relationships between known physics constants (including masses of some elementary particles), includes theory that dovetails with the ratio of dark matter to ordinary matter, includes math that dovetails with the number of elementary-fermion generations, suggests forces that govern the rate of expansion of the universe, and suggests additions to and details for the cosmology timeline.