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Author: George E. Hale
Publisher: Forgotten Books
ISBN: 9780282551018
Category : Science
Languages : en
Pages : 978
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Book Description
Excerpt from The Astrophysical Journal, Vol. 5: An International Review of Spectroscopy and Astronomical Physics, January-May, 1897 Comparing those times which are separated by the Shortest intervals (february 24 and 27, March 8 and 11) we obtain a period of days; on the other hand, the period Obtained from the dates February 24 and March 30, February 27 and March 30, is days. I have used the latter value in com puting the times of zero velocity, which are. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: George E. Hale
Publisher: Forgotten Books
ISBN: 9780282551018
Category : Science
Languages : en
Pages : 978
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Book Description
Excerpt from The Astrophysical Journal, Vol. 5: An International Review of Spectroscopy and Astronomical Physics, January-May, 1897 Comparing those times which are separated by the Shortest intervals (february 24 and 27, March 8 and 11) we obtain a period of days; on the other hand, the period Obtained from the dates February 24 and March 30, February 27 and March 30, is days. I have used the latter value in com puting the times of zero velocity, which are. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: George E. Hale
Publisher: Forgotten Books
ISBN: 9780364002391
Category : Science
Languages : en
Pages : 414
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Book Description
Excerpt from The Astrophysical Journal, Vol. 15: An International Review of Spectroscopy and Atronomical Physic The dimensions of the spectrograph of course depended upon the size of the optical parts, in particular of the prisms. After careful consideration, and in accordance with the advice of others having experience with large prisms, we decided that the diameter of the beam to be transmitted by the prisms should not exceed two and one-half inches, and then we further limited it to two inches (51 mm). Inasmuch as the correcting lens which Professor Hastings was designing for the forty-inch telescope was not to change the angular aperture of the great objective of 11 - 5, this at once fixed the focal length of the colli nator at thirty-eight inches. We desired to obtain all the advantage possible from a long-focus collimator, in permitting the use of a wider slit and consequent shorter exposure, without loss of purity as compared with a shorter collimator. The con ditions of rigidity and compactness seemed best satisfied by a total deviation of 180° for the ray passing through the prisms at minimum. With these points settled, the mechanical con struction could be planned accordingly. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author:
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 524
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Book Description
"Letters to the Editor" issued as Part 2 and separately paged from v. 148, 1967.
Author: American Astronomical Society
Publisher: Forgotten Books
ISBN: 9781390908695
Category : Science
Languages : en
Pages : 924
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Book Description
Excerpt from The Astrophysical Journal, Vol. 3: An International Review of Spectroscopy and Astronomical Physics; January-May 1896 Recent researches bearing ON the determination OF wave lengths IN the infra-red spectrum. James E. Keeler. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author: University of Chicago
Publisher: Palala Press
ISBN: 9781357905422
Category :
Languages : en
Pages :
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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author:
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ISBN:
Category : Astronomical spectroscopy
Languages : en
Pages :
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Book Description
Author: Subrahmanyan Chandrasekhar
Publisher: University of Chicago Press
ISBN: 9780226100982
Category : Science
Languages : en
Pages : 616
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Book Description
This is the fifth of six volumes collecting significant papers of the distinguished astrophysicist and Nobel laureate S. Chandrasekhar. His work is notable for its breadth as well as for its brilliance; his practice has been to change his focus from time to time to pursue new areas of research. The result has been a prolific career full of discoveries and insights, some of which are only now being fully appreciated. Chandrasekhar has selected papers that trace the development of his ideas and that present aspects of his work not fully covered in the books he has periodically published to summarize his research in each area. Volume 5 covers all of Chandrasekhar's contributions to the general theory of relativity and relativity's astrophysical applications (except his research on black holes and colliding gravitational waves, which is covered in Volume 6). The major topics include the influence of general relativity on the pulsations and stability of stars; the back reaction of gravitational waves on their sources; and post-Newtonian approximations to general relativity and their astrophysical applications. In addition to research papers, the volume includes two 1972 lectures in which Chandrasekhar assessed the past, present, and future of relativistic astrophysics. The foreword by astrophysicist Kip S. Thorne is an absorbing, brief history of the field since 1961, capturing the atmosphere of the early research and clarifying Chandrasekhar's dominant role in it. Chandrasekhar has never written a monograph synthesizing his research in relativistic astrophysics, and therefore this volume of his papers serves as a summary of that work for students and more senior researchers.
Author:
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 706
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Book Description
"Letters to the Editor" issued as Part 2 and separately paged from v. 148, 1967
Author: Lampros A A Nikolopoulos
Publisher: Morgan & Claypool Publishers
ISBN: 168174712X
Category : Science
Languages : en
Pages : 195
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Book Description
The dynamics of quantum systems exposed to ultrafast (at the femtosecond time-scale) and strong laser radiation has a highly non-linear character, leading to a number of new phenomena, outside the reach of traditional spectroscopy. The current laser technology makes feasible the probing and control of quantum-scale systems with fields that are as strong as the interatomic Coulombic interactions and time resolution that is equal to (or less than) typical atomic evolution times. It is indispensable that any theoretical description of the induced physical processes should rely on the accurate calculation of the atomic structure and a realistic model of the laser radiation as pulsed fields. This book aims to provide an elementary introduction of theoretical and computational methods and by no means is anywhere near to complete. The selection of the topics as well as the particular viewpoint is best suited for early-stage students and researchers; the included material belongs in the mainstream of theoretical approaches albeit using simpler language without sacrificing mathematical accuracy. Therefore, subjects such as the Hilbert vector-state, density-matrix operators, amplitude equations, Liouville equation, coherent laser radiation, free-electron laser, Dyson-chronological operator, subspace projection, perturbation theory, stochastic density-matrix equations, time-dependent Schrödinger equation, partial-wave analysis, spherical-harmonics expansions, basis and grid wavefunction expansions, ionization, electron kinetic-energy and angular distributions are presented within the context of laser-atom quantum dynamics.
Author:
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ISBN:
Category : Astrophysics
Languages : en
Pages : 644
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Book Description
Features the "Astrophysical Journal," published by University of Chicago Press in Illinois. The journal is a research publication devoted to recent developments, discoveries, and theories in astronomy and astrophysics. Provides access to the electronic version of the journal. Lists the members of the editorial board. Contains information for authors, subscription information, and a list of books and journals of related interest from the University of Chicago Press.
