English | 68 pages | True PDF | 12 MB

English | 2021 | ISBN: 152679005X | 232 pages | PDF,EPUB | 2.17 MB
The Yearbook of Astronomy 2022 is the Diamond Jubilee edition of this iconic publication, the annual appearance of which has been eagerly anticipated by astronomers, both amateur and professional, ever since this invaluable book first appeared in 1962. As the preface to the 1962 edition informed its readers, the post-war years had seen a tremendous growth of interest in astronomy and space research. Doubtless fueled by the dawn of the Space Age, the launch of Sputnik 1 in October 1957 marked a significant change in the course of history. This epoch-making event, coupled with the subsequent flights of Soviet cosmonaut Yuri Gagarin (April 1961) and American astronaut Alan Shepard (May 1961), served to engender a public interest in astronomy and space that has continued to grow and expand to this day.

English | 2021 | ISBN: 0367768623 | 172 pages | pdf | 23.08 MB
Nanohertz Gravitational Wave Astronomy explores the exciting hunt for low frequency gravitational waves by using the extraordinary timing precision of pulsars. The book takes the reader on a tour across the expansive gravitational-wave landscape, from LIGO detections to the search for polarization patterns in the Cosmic Microwave Background, then hones in on the band of nanohertz frequencies that Pulsar Timing Arrays (PTAs) are sensitive to. Within this band may lie many pairs of the most massive black holes in the entire Universe, all radiating in chorus to produce a background of gravitational waves. The book shows how such extra-Galactic gravitational waves can alter the arrival times of radio pulses emanating from monitored Galactic pulsars, and how we can use the pattern of correlated timing deviations from many pulsars to tease out the elusive signal.
The book takes a pragmatic approach to data analysis, explaining how it is performed in practice within classical and Bayesian statistics, as well as the numerous strategies one can use to optimize numerical Bayesian searches in PTA analyses. It closes with a complete discussion of the data model for nanohertz gravitational wave searches, and an overview of the past achievements, present efforts, and future prospects for PTAs.

Extragalactic Astronomy and Cosmology: An Introduction 2nd Edition
English | 2015 | ISBN: 3642540821 | 1666 Pages | True EPUB | 31 MB
This second edition has been updated and substantially expanded. Starting with the description of our home galaxy, the Milky Way, this cogently written textbook introduces the reader to the astronomy of galaxies, their structure, active galactic nuclei, evolution and large scale distribution in the Universe. After an extensive and thorough introduction to modern observational and theoretical cosmology, the focus turns to the formation of structures and astronomical objects in the early Universe. The basics of classical astronomy and stellar astrophysics needed for extragalactic astronomy are provided in the appendix.

English | 2021 | ISBN: 0367768631 | 175 pages | pdf | 31.72 MB
A Practical Guide to Observational Astronomyprovides a practical and accessible introduction to the ideas and concepts that are essential to making and analyzing astronomical observations.
A key emphasis of the book is on how modern astronomy would be impossible without the extensive use of computers, both for the control of astronomical instruments and the subsequent data analysis. Astronomers now need to use software to access and assess the data they produce, so understanding how to use computers to control equipment and analyze data is as crucial to modern astronomers as a telescope.

Clive L N Ruggles Ancient Astronomy An Encyclopedia of Cosmologies and Myth ABC CLIO 2005
pdf | 4.81 MB | English | Isbn:‎ 978-1851094776 | Author: Clive L.N. Ruggles | Year: 2005

Size:11.57 MB | pdf | English |

Free Astronomy - September-October 2021
English | 56 Pages | True PDF | 14 MB

English | 2021 | ISBN: 152677187X | 386 pages | True (PDF EPUB) | 79.7 MB
"Maintaining its appealing style and presentation, the Yearbook of Astronomy 2021 contains comprehensive jargon-free monthly sky notes and an authoritative set of sky charts to enable backyard astronomers and sky gazers everywhere to plan their viewing of the year's eclipses, comets, meteor showers, and minor planets as well as detailing the phases of the moon and visibility and locations of the planets throughout the year. To supplement all this is a variety of entertaining and informative articles, a feature for which the Yearbook of Astronomy is known. In the 2021 edition the reader is presented with articles covering a wide range of topics including Male Family Mentors for Women in Astronomy, Henrietta Swan Leavitt and Her Work, Solar Observing, Obsolete Constellations, Lunar Volcanism, Pages From the Past: Collecting Vintage Astronomy Books, Mori Astronomy in Aotearoa-New Zealand and others.In addition to the above is the first in a series of articles entitled" "Mission to Mars: Countdown to Building a Brave New World"" scheduled to appear in the Yearbook of Astronomy throughout the 2020s. These articles will keep the reader fully up to date with the ongoing investigations, research and preparations that are already underway, as well as those in the planning phase, all of which are geared towards sending a manned mission to Mars at or around the end of the decade. We are at the start of what promises to be an exciting journey. The Yearbook of Astronomy made its first appearance way back in 1962, shortly after the dawning of the Space Age. Now well into its sixth decade of production, the Yearbook is rapidly heading for its Diamond Jubilee edition in 2022. It continues to be essential reading for anyone lured and fascinated by the magic of astronomy and who has a desire to extend their knowledge of the Universe and the wonders it hosts. The Yearbook of Astronomy is indeed an inspiration to amateur and professional astronomers alike, and warrants a place on the bookshelves of all stargazers and watchers of the Universe."

Astronomy - October 2021
English | 74 pages | True PDF | 37.2 MB