The Initial Mass Function 50 Years Later

The Initial Mass Function 50 Years Later PDF Author: Edvige Corbelli
Publisher: Springer Science & Business Media
ISBN: 1402034075
Category : Science
Languages : en
Pages : 551

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Book Description
Theideatocelebrate50yearsoftheSalpeterIMFoccurredduringtherecent IAU General Assembly in Sydney, Australia. Indeed, it was from Australia that in July 1954 Ed Salpeter submitted his famous paper "The Luminosity Function and Stellar Evolution" with the rst derivation of the empirical stellar IMF. This contribution was to become one of the most famous astrophysics papers of the last 50 years. Here, Ed Salpeter introduced the terms "original mass function" and "original luminosity function", and estimated the pro- bility for the creation of stars of given mass at a particular time, now known as the "Salpeter Initial Mass Function", or IMF. The paper was written at the Australian National University in Canberra on leave of absence from Cornell University (USA) and was published in 1955 as 7 page note in the Astroph- ical Journal Vol. 121, page 161. To celabrate the 50th anniversary of the IMF, along with Ed Salpeter’s 80th birthday, we have organized a special meeting that brought together scientists involved in the empirical determination of this fundamental quantity in a va- ety of astrophysical contexts and other scientists fascinated by the deep imp- cations of the IMF on star formation theories, on the physical conditions of the gas before and after star formation, and on galactic evolution and cosmology. The meeting took place in one of the most beautiful spots of the Tuscan countryside, far from the noise and haste of everyday life.

Observatories and Telescopes of Modern Times

Observatories and Telescopes of Modern Times PDF Author: David Leverington
Publisher: Cambridge University Press
ISBN: 0521899931
Category : History
Languages : en
Pages : 503

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Book Description
Radio Observatory and Telescope Index -- General Index

The Paraboloidal Reflector Antenna in Radio Astronomy and Communication

The Paraboloidal Reflector Antenna in Radio Astronomy and Communication PDF Author: Jacob W. M. Baars
Publisher: Springer Science & Business Media
ISBN: 0387697330
Category : Science
Languages : en
Pages : 270

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Book Description
Radio astronomers have developed techniques of calibration of large reflector antennas with radio astronomical methods, but these have not been comprehensively described. This text aims to fill this gap, taking a practical approach to the characterisation of antennas. All calculations and results in the form of tables and figures have been made with Mathematica by Wolfram Research. The reader can use the procedures for the implementation of his own input data.

Astrophysical Disks

Astrophysical Disks PDF Author: Aleksey M. Fridman
Publisher: Springer Science & Business Media
ISBN: 1402043481
Category : Science
Languages : en
Pages : 366

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Book Description
This book deals with collective and stochastic processes in astrophysical disks involving theory, observations, and the results of modelling. It examines the spiral-vortex structure in galactic and accretion disks, and stochastic and ordered structures in developed turbulence. The book advances the study in this important branch of astrophysics and will benefit professional researchers, lecturers, and graduate students.

Nonequilibrium Phenomena in Plasmas

Nonequilibrium Phenomena in Plasmas PDF Author: A. Surjalal Sharma
Publisher: Springer Science & Business Media
ISBN: 1402031092
Category : Science
Languages : en
Pages : 346

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Book Description
This book presents studies of complexity in the context of nonequilibrium phenomena using theory, modeling, simulations, and experiments, both in the laboratory and in nature.

The New Astronomy: Opening the Electromagnetic Window and Expanding our View of Planet Earth

The New Astronomy: Opening the Electromagnetic Window and Expanding our View of Planet Earth PDF Author: Wayne Orchiston
Publisher: Springer Science & Business Media
ISBN: 1402037244
Category : Science
Languages : en
Pages : 345

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Book Description
This is an unusual book, combining as it does papers on astrobiology, history of astronomy and sundials, but—after all—Woody Sullivan is an unusual man. In late 2003 I spent two fruitful and enjoyable months in the Astronomy Department at the University of Washington (UW) working on archival material accumulated over the decades by Woody, for a book we will co-author with Jessica Chapman on the early development of Australian astronomy. The only serious intellectual distraction I faced during this period was planning for an IAU colloquium on transits of Venus scheduled for June 2004 in England, where I was down to present the ‘Cook’ paper. I knew Woody was also interested in transits (and, indeed, anything remotely connected with shadows—see his paper on page 3), and in discussing the Preston meeting with him it transpired that his 60th birthday was timed to occur just one week later. This was where the seed of ‘Woodfest’ began to germinate. Why not invite friends and colleagues to join Woody in Seattle and celebrate this proud event? I put the idea to Woody and others at UW, they liked it, and ‘Woodfest’ was born.

Organizations and Strategies in Astronomy 6

Organizations and Strategies in Astronomy 6 PDF Author: Andre Heck
Publisher: Springer Science & Business Media
ISBN: 9781402040559
Category : Science
Languages : en
Pages : 368

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Book Description
When I wasa child, growing up in South America,I often went camping in the wild and hence had direct access to the wondrous Southern sky; the Southern Cross was all mine at the time. Little did I know then that the study of the sky would take such a huge importance in my life, and that in the end astronomy and astrophysics would in many ways become my country and my religion. I have lived in several di?erent countries, and when asked my nationality, I am always very tempted to reply: astronomer. I started as a theorist, and my only dream in my youth was to spend nights thinking and calculating, with paper and pencil, and to have the impression by dawn that I had understood something new. So at the time astronomy was seen or dreamt by me as a solitary endeavour, with periodic encounters with my wise adviser and professors; it is this model that I adopted when doing my PhD work. My generation has lived through many revolutions of all kinds. Those in astronomy, I believe, remain particularly remarkable, and I am a true product of them. Now, I elect to live and work in large organizations, and to share my endeavours with many people. And I relish the series of Andr ́ e Heck on Organizations and Strategies in Astronomy, which help us recover our memories, reconstitute our own story, and read with glee about our neighbouring or far-away colleagues.

Cores to Clusters

Cores to Clusters PDF Author: M.S. Nanda Kumar
Publisher: Springer Science & Business Media
ISBN: 0387263578
Category : Science
Languages : en
Pages : 232

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Book Description
It was with pleasure that CAUP became for three days the core to the cloud of star formation experts all over the world. Close to the celebration of its 15th anniversary – therefore still in the early stages of institutional evolution – we are proud of our multiple activities in Astronomy: a productive research centre, classi?ed as “Institution of excellence” within the Portuguese research units, but also an “Institution of Public Utility” as recognised by the Government. Fifteen years ago we choose to play a role not only in research, as expected from any research centre but also in the training of the future astronomers and the promotion of science and scienti?c culture. This choice is clearly stated in our by-laws and also in the multiple activities we have carried out since. Along the years we have organized on a regular basis international Workshops similar to “Cores to Clusters”. Sometimes we have chosen to organize int- national conferences of a larger size. On other occasions the choice has been for smaller and more informal discussion meetings. Or even doctoral schools with very different objectives. In common all those meetings have always had, besides the formal registered participants, a group of informal participants, our undergraduate students of Astronomy, so eager to be in touch with the real world.

Open Skies

Open Skies PDF Author: Kenneth I. Kellermann
Publisher: Springer Nature
ISBN: 3030323455
Category : Astronomy
Languages : en
Pages : 652

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Book Description
This open access book on the history of the National Radio Astronomy Observatory covers the scientific discoveries and technical innovations of late 20th century radio astronomy with particular attention to the people and institutions involved. The authors have made extensive use of the NRAO Archives, which contain an unparalleled collection of documents pertaining to the history of radio astronomy, including the institutional records of NRAO as well as the personal papers of many of the pioneers of U.S. radio astronomy. Technical details and extensive citations to original sources are given in notes for the more technical readers, but are not required for an understanding of the body of the book. This book is intended for an audience ranging from interested lay readers to professional researchers studying the scientific, technical, political, and cultural development of a new science, and how it changed the course of 20th century astronomy.

Radio Telescope Reflectors

Radio Telescope Reflectors PDF Author: Jacob W.M. Baars
Publisher: Springer
ISBN: 331965148X
Category : Science
Languages : en
Pages : 282

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Book Description
This book demonstrates how progress in radio astronomy is intimately linked to the development of reflector antennas of increasing size and precision. The authors describe the design and construction of major radio telescopes as those in Dwingeloo, Jodrell Bank, Parkes, Effelsberg and Green Bank since 1950 up to the present as well as millimeter wavelength telescopes as the 30m MRT of IRAM in Spain, the 50m LMT in Mexico and the ALMA submillimeter instrument. The advances in methods of structural design and coping with environmental influences (wind, temperature, gravity) as well as application of new materials are explained in a non-mathematical, descriptive and graphical way along with the story of the telescopes. Emphasis is placed on the interplay between astronomical and electromagnetic requirements and structural, mechanical and control solutions. A chapter on management aspects of large telescope projects closes the book. The authors address a readership with interest in the progress of engineering solutions applied to the development of radio telescope reflectors and ground station antennas for satellite communication and space research. The book will also be of interest to historians of science and engineering with an inclination to astronomy.