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Astrofysik

Her finder du spændende bøger om Astrofysik. Nedenfor er et flot udvalg af over 242 bøger om emnet.
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  • - fra big bang til sorte huller
    af Stephen Hawking
    220,95 - 236,95 kr.

    En moderne klassiker, som har slået alle udgivelsesrekorder med 237 uger på bestsellerlisten. ”Denne bog er en forening af et barns undren og et genis intellekt. Vi rejser med ind i Hawkings univers med dyb fascination.” Sunday Time ”En af de mest fremragende videnskabelige begavelser siden Einstein.” Daily Express ”Hawking forklarer kompleks kosmologisk fysik med en medrivende blanding af klarhed og humor … en hjerne af usædvanlig kraft.” Observer

  • af Anja C. Andersen
    139,95 - 197,95 kr.

    Den 20. juli 1969 kl. 03.56 dansk tid satte Neil Armstrong som det første menneske sin fod på Månen. I denne bog med mere end 100 fotos fortæller Danmarks førerende astrofysiker, Anja C. Andersen hele den spændende historie om Jordens nærmeste nabo i rummet; kendsgerninger og konspirationsteorier, myter, fup og fakta. Frem til 1972 gennemførte NASA yderligere 5 bemandede månelandinger, og i alt 12 astronauter har betrådt Månen. Derudover har der været et utal af ubemandede månelandinger - senest den 3. januar 2019, da et kinesisk rumfartøj landede på Månens bagside. Men der er stadig meget, vi ikke ved: Hvordan er Månen opstået, og hvorfor har den kun vand på den side, der vender mod Jorden? Hvordan påvirker Månen os mennesker?

  • - Historien om opdagelsen af exoplaneter og jagten på verdener som vores
    af Gunver Lystbæk Vestergård
    116,95 - 236,95 kr.

    Der er ikke otte, men milliarder af planeter i Universet, og mange af dem ligger i et lunt smørhul, hvor de potentielt kan huse liv. Den opdagelse er en af de største i den moderne astronomi, og vi er kun lige begyndt at forstå, hvad der egentlig gemmer sig derude i kosmos af bizarre kloder. 'Fjerne kloder' beskriver erkendelsesrejsen, fra Giordano Bruno blev brændt på bålet i år 1600 for sin kætterske idé om uendelig mange planeter – og til konstruktionen af små satellitter, som måske kan besøge de nærmeste af disse exoplaneter og lede efter livstegn på dem. Undervejs møder vi forskerne ved fronten, som kigger hinsides solsystemet og kæmper for at besvare det ultimative spørgsmål: Er vi alene?

  • af Anja C. Andersen
    310,95 kr.

    Danmarks mest anerkendte astrofysiker giver et overblik over himmelrummet fra Solsystemet og ud til de fjerneste galakser og over universets udvikling fra Big Bang frem til i dag.Universet blev skabt for 13,7 milliarder år siden. Et lysår er ca. 9,5 billioner km, og afstanden til de fjerne kvasarer er 12 milliarder lysår. Når man beskæftiger sig med universet, handler det om svimlende tidshorisonter og afstande; men Anja C. Andersen formår at gøre det uoverskuelige begribeligt.Stor gavebog med fantastisk billedmateriale.

  • af Paulo Vargas Moniz
    1.108,95 kr.

  • af Dolores Cortina-Gil & Silvia M. Lenzi
    607,95 kr.

  • af Andrei Vasile Nastuta
    826,95 kr.

  • af Françoise Combes
    1.817,95 kr.

  • af Neil DeGrasse Tyson
    148,95 - 207,95 kr.

  • af H. Fechtig & H. Elsässer
    981,95 kr.

  • af W. A. Dziembowski & H. A. Hill
    707,95 kr.

  • af Friedrich W. Hehl, Hanns Ruder, Harald Riffert & mfl.
    565,95 kr.

  • af Hans V. Klapdor
    648,95 kr.

  • af Daniel Fischer
    282,95 kr.

  • af Dave Doody
    938,95 kr.

  • af A. W. Wolfendale & F. R. Stephenson
    1.387,95 - 2.153,95 kr.

  • af J. -H. Huang & D. J. Helfand
    1.983,95 - 2.408,95 kr.

  • af Syun-Ichi Akasofu & Y. Kamide
    2.655,95 kr.

    As a star, the sun is continuously emitting an enormous amount of energy 33 into space, up to as much as 3. 9 X 10 erg/ s. This energy emission consists of three modes. Almost all the energy is emitted in the form of the familiar black-body radiation, commonly called sunlight. Although the amount of energy emitted is small, the sun also emits x rays, extreme ultraviolet (EUV), and UV radiations, which are absorbed above the earth's stratosphere. These constitute the second mode of solar energy, separate from the black-body radiation that penetrates the lower layers of the atmosphere. The sun has another important mode of energy emission in which the energy is carried out by charged particles. These particles have a very wide range of energies, from less than I keY to more than I GeV. Because of this wide range, it is convenient to group them into two components: particles with energies greater than 10 keY and the lower-energy particles. The former are generally referred to as solar protons or solar cosmic rays; their emission is associated with active features on the sun. Their interaction with the atmosphere is similar to that of the x ray and EUV radiation. Low-energy particles constitute plasma, a gas of equal numbers of positive and negative particles. Actually, this plasma is the outermost part of the solar atmosphere, namely the corona, which blows out continuously . For this reason, the plasma flow is called the solar wind.

  • af M. R. Kundu & T. E. Gergely
    1.558,95 kr.

    For over 35 years, radio astronomical techniques have made an impressive series of advances in our understanding of solar phenomena. However, although the subject has been partially discussed in "Paris Symposium on Radio Astronomy" in 1958, NASA-GSFC Symposium on "Physics of Solar Flares" in 1963, and the lAU Symposium No. 57 on "Coronal Disturbances" in 1973, there has not been a major international meeting dedicated to "Radio Physics of the Sun". This is the first major symposium on the subject held under the auspices of the International Astronomical Union. It was jointly spon­ sored by lAU Commission 40, Radio Astronomy, and by lAU Commission 10, Solar Activity. It was also sponsored by the Solar Physics Division of the American Astronomical Society. Thig volume contains the proceedings of this meeting, lAU Symposium No. 86 on "Radio Physics of the Sun" that was held in College Park, Maryland, August 7-10, 1979. The Scientific Organizing Committee of the Symposium consisted of M. R. Kundu (chairman), G. A. Dulk, O. Hachenberg, M. Kuperus, D. J. McLean, D. Melrose, M. Pick, J. L. Steinberg, T. Takakura, A. Tlamicha and V. V. Zheleznyakov. The topics and speakers were chosen in order to emphasize the current observational material with particular reference to centi­ meter wavelength observations of a few arc-second resolution, fast two-dimensional pictures of the sun at meter-decameter wavelengths and the recent advances in plasma and radiation theory.

  • af W. D. Heintz
    1.060,95 kr.

    Double and multiple stars are the rule in the stellar population, and single stars the minority, as the abundance of binary systems in the space surrounding the sun shows beyond doubt. Numerous stellar features, and methods of their exploration, ensue specifically from the one but widespread property, the binary nature. Stellar masses are basic quantities for the theory of stellar structure and evolution, and they are ob­ tained from binary-star orbits where they depend on the cube of observed parameters; this fact illustrates the significance of orbits as well as the accuracy requirements. Useful in dating stellar history is the knowledge that components of a system, different though they may appear, are of the same origin and age. Between star formation and the genesis of binaries a direct connection can be traced. The later stages of stellar life branch into a great variety as mutual influence between the components of a close binary pair develops. Transfer and exchange of mass and the presence of angular momentum in the orbit give rise to special tracks of evolution, not found for single stars, and to peculiar spectral groups. This is not a new story but it has a new ending: The patterns of evolution involving mass transfer appear to lead ultimately to single objects.

  • af R. Giacconi & H. Gursky
    1.558,95 kr.

  • af Field & Chaisson
    707,95 kr.

    . . . And indeed, these latest centuries merit praise because it is during them that the arts and sciences, discovered Iry the ancients, have been reduced to so great and constantlY increasing perfec­ tion through the investigations and experiments of clear-seeing minds. This development is particularlY evident in the case of the mathematical sciences. Here, without mentioning various men who have achieved success, we must without hesitation and with the unanimous approval of scholars assign the first place to Gali­ leo Galilei, Member of the Acadmry of the Lincei. This he de­ serves not onlY because he has effectivelY demonstrated faUacies in many of our current conclusions, as is amplY shown Iry his published works, but also Iry means of the telescope (invented in this country but greatlY perfected Iry him) he has discovered the four sateOites of Jupiter, has shown us the true character of the Milky wa~ and has made us acquainted with spots on the Sun, with the rough and cloudy portions of the lunar surface, with the threefold nature of Saturn, with the phases of Venus and with the physical character of comets. These matters were entirelY unknown to the ancient astronomers and philosophers; so that we may trulY say that he has restored to the world the science of astronomy and has presented it in a new light.

  • af A. Blecha & T. J. -L. Courvoisier
    1.728,95 - 2.153,95 kr.

  • af E. Gunzig & P. Nardone
    1.047,95 - 1.558,95 kr.

  • af Vinod Krishan & E. R. Priest
    1.728,95 kr.

    Much of the excitement in modern Solar Physics has come from the realisation that the Sun is a plasma and that this plasma is interacting with the magnetic field in a wide variety of subtle ways. As well as being of great interest in their own right the observed plasma phenomena on the Sun are of much wider importance, since they reveal to us details of basic phenomena that are expected to be occurring throughout the universe. It was with this in mind that 173 solar physicists from 17 countries gathered together in Bangalore with an air of anticipation. We were not disappointed as we received the warmest of welcomes from our graceful and charming host,Vinod Krishan. She and her colleagues worked tirelessly to make our stay a most memorable one and to ensure that the meeting ran with calm and efficiency. In addition to being stimulated by an excellent series of talks on the up-to-the­ minute advances in our subject, it was a pleasure to make new friendships from so many countries and to learn, in particular, of the Solar Physics being done in India which has a great tradition and is of a high standard. Furthermore, we enjoyed hearing about Indian culture and appreciating its beauty, especially on our day's tour into the countryside to visit some Hindu and Jain temples.

  • af R. Beck, R. Wielebinski & P. P. Kronberg
    1.983,95 - 2.408,95 kr.

  • af Mark Morris
    2.153,95 - 2.578,95 kr.

  • af Florian Kerber & Andreas Kaufer
    877,95 kr.

  • af Roald E. Gershberg
    1.140,95 kr.

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