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  • 1
    Online Resource
    Online Resource
    Composition and Origin of Cometary Materials : Proceedings of an ISSI Workshop, 14–18 September 1998, Bern, Switzerland (1999)
    Dordrecht : Springer Netherlands
    Details
    UID:
    b3kat_BV042415970
    Format: 1 Online-Ressource (XII, 412 p)
    ISBN: 9789401142113 , 9789401058308
    Series Statement: Space Science Series of ISSI 8
    Note: Comet nuclei are the most primitive bodies in the solar system. They have been created far away from the early Sun and their material properties have been altered the least since their formation. Thus, the composition and structure of comet nuclei provide the best information about the chemical and thermodynamic conditions in the nebula from which our solar system formed. In this volume, cometary experts review a broad spectrum of ideas and conclusions based on in situ measurement of Comet Halley and remote sensing observations of the recent bright Comets Hale-Bopp and Hyakutake. The chemical character of comet nuclei suggests many close similarities with the composition of interstellar clouds. It also suggests material mixing from the inner solar nebula and challenges the importance of the accretion shock in the outer nebula. The book is intended to serve as a guide for researchers and graduate students working in the field of planetology and solar system exploration. Several special indexes focus the reader's attention to detailed results and discussions. It concludes with recommendations for laboratory investigations and for advanced modeling of comets, the solar nebula, and the collapse of interstellar clouds
    Language: English
    DOI: 10.1007/978-94-011-4211-3
    URL: Volltext
    Author information: Ehrenfreund, Pascale 1960-
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    TU Berlin
  • 2
    Online Resource
    Online Resource
    Solar Photo Rates for Planetary Atmospheres and Atmospheric Pollutants (1992)
    Dordrecht : Springer Netherlands
    Details
    UID:
    b3kat_BV042416333
    Format: 1 Online-Ressource (VI, 296 p)
    ISBN: 9789401730235 , 9789048142125
    Note: A quantitative measure of the accuracy of the rate coefficients and the excess energies is a desirable goal of this analysis. There are two major sources of uncertainties: The atomic and molecular data and the solar irradiance. The cross sections and branching ratios used in this analysis come from many different sources; many of them without any error indications. For this reason, we must confine ourselves to a qualitative indication of the reliability of the results. Specifically we give a quality scale in Table II for the data of each mother molecule; A indicating the highest quality of atomic and molecular data and F the lowest quality. The letter B typically means that the threshold is uncertain. For most molecules the cross section at threshold is very small and the rate coefficient for these molecules is therefore not influenced by this uncertainty. For atomic species the cross section is usually large near threshold, but for these species the threshold is known quite accurately. The letter B, therefore, indicates that the rate coefficient is most likely quite accurate, but the excess energy is less accurately known. The letter C usually means that the branching ratios are not well known. This means that the total rate coefficient is very good, but the rate coefficients and the excess energies for the individual branches are less accurate
    Language: English
    Keywords: Sonnenwind ; Luftverschmutzung ; Sternatmosphäre
    DOI: 10.1007/978-94-017-3023-5
    URL: Volltext
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    TU Berlin
  • 3
    Online Resource
    Online Resource
    Molecular Astrophysics : State of the Art and Future Directions (1985)
    Dordrecht : Springer Netherlands
    Details
    UID:
    b3kat_BV042415242
    Format: 1 Online-Ressource (XXIII, 744 p)
    ISBN: 9789400954328 , 9789401088985
    Series Statement: NATO ASI Series, Series C: Mathematical and Physical Sciences 157
    Note: and In the IAU Symposium of 1979 devoted to interstellar molecules [8]. Excellent relevant monographs [ 9. 10] . related timely proceedings [ 11] . and recently published elementary textbooks [12. 13] further help to define the pedagogical scope of molecular astrophysics. A significant financial investment has been made in the establishment of ground- and satellite-based observationai facilities for molecuiar astrophysical studies. In the coming years. a wealth of experimental data is bound to accumulate. in which connection close interactions between observers. astrophysical modeliers. and molecular physicists and chemists can play a helpful role in analysis and interpretation. In view of the increasing pace of activity in the field of molecular astrophysics. and in the apparent absence of relevant international meetings since the Liege 1977 and IAU 1979 Symposia. it was deemed appropriate and timely by the organizers to hold a workshop in 1984. Consequently. the NATO Advanced Research Workshop. "Molecular Astrophysics State of the Art and Future Directions". was organized and held at Bad Wlndshelm. West Germany. from 8 to 14 July 1984. The choice of speakers and subject matter of the Workshop was largely subjective. but designed to include most of the generally accepted areas of molecular astrophysical study. Workers from the fields of radio. infrared. and uv-optlcal observations. astrophysical modelling. laboratory spectroscopy. reaction chemistry. collision physics. and theoretical molecular physics and chemistry. were Invited to present survey lectures In their areas of speciality. In addition
    Language: English
    Keywords: Molekül ; Astrophysik ; Konferenzschrift
    DOI: 10.1007/978-94-009-5432-8
    URL: Volltext
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    TU Berlin
  • 4
    Online Resource
    Online Resource
    Comets in the 21st century : a personal guide to experiencing the next great comet! (2019)
    San Rafael [California] (40 Oak Drive, San Rafael, CA, 94903, USA) :Morgan & Claypool Publishers, | Bristol [England] (Temple Circus, Temple Way, Bristol BS1 6HG, UK) :IOP Publishing,
    Details
    UID:
    almahu_9948201685502882
    Format: 1 online resource (various pagings) : , illustrations (some color).
    ISBN: 9781643274461 , 9781643274447
    Series Statement: [IOP release 6]
    Content: The purpose of this book is to bring comets into the living rooms of general households, to familiarize politicians with these fascinating objects when they ponder funding for comet research, to teach children and young students and to provide teaching tools about these very unusual objects in our skies. The presentation is very comprehensive in its description of orbits around the Sun, the development of the coma (escaping atmosphere) from a comet's nucleus and source of all activities, various types of comet tails, trailing as well as leading as a comet orbits our Sun, ancient beliefs and explanations of these phenomena and the most recent discovery of the first interstellar comet.
    Note: "Version: 20190401"--Title page verso. , "A Morgan & Claypool publication as part of IOP Concise Physics"--Title page verso. , 1. Introduction -- 2. Roller-coaster comets -- 2.1. The paths of comets -- 2.2. Two kinds of comets -- 2.3. Celestial clockwork -- 2.4. A Universe in motion -- 2.5. The gravity of the situation -- 2.6. Looping comets -- 2.7. Orbits of your own , 3. What comets are all about -- 3.1. Parts of a comet -- 3.2. What is a comet made of? -- 3.3. More on the comet nucleus -- 3.4. Comet scene investigation (CSI) using chemical fingerprints -- 3.5. The demise of comets -- 3.6. The origin of comets -- 3.7. A visit to a comet , 4. Comet crashes -- 4.1. What if? -- 4.2. The comets come to Earth -- 4.3. The killer comet , 5. Observing comets -- 5.1. Eye on a comet -- 5.2. Where to go? -- 5.3. When to look? -- 5.4. Expectations , 6. Hunting comets -- 6.1. Who discovers comets? -- 6.2. Where is our comet? -- 6.3. How bright a light? -- 6.4. Eureka! I've found a comet! -- 6.5. Starting your comet quest -- 6.6. Epilogue , 7. Postscript -- Appendices. A. Lesson suggestions for teachers -- B. Approximate dates for some famous meteor showers -- C. Typical comet visibility rates -- D. The brightest comets since 1935 -- E. Notable comets in history -- F. Books on historical comets -- G. Intermediate and advanced books on comets. , Also available in print. , Mode of access: World Wide Web. , System requirements: Adobe Acrobat Reader, EPUB reader, or Kindle reader.
    Additional Edition: Print version: ISBN 9781643274430
    Language: English
    DOI: 10.1088/2053-2571/ab027e
    URL: https://iopscience.iop.org/book/978-1-64327-446-1
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  • 5
    Online Resource
    Online Resource
    Comets in the 21st century : a personal guide to experiencing the next great comet! (2019)
    San Rafael [California] (40 Oak Drive, San Rafael, CA, 94903, USA) :Morgan & Claypool Publishers, | Bristol [England] (Temple Circus, Temple Way, Bristol BS1 6HG, UK) :IOP Publishing,
    Details
    UID:
    edoccha_9959062789302883
    Format: 1 online resource (various pagings) : , illustrations (some color).
    ISBN: 1-64327-447-3 , 1-64327-446-5
    Series Statement: [IOP release 6]
    Content: The purpose of this book is to bring comets into the living rooms of general households, to familiarize politicians with these fascinating objects when they ponder funding for comet research, to teach children and young students and to provide teaching tools about these very unusual objects in our skies. The presentation is very comprehensive in its description of orbits around the Sun, the development of the coma (escaping atmosphere) from a comet's nucleus and source of all activities, various types of comet tails, trailing as well as leading as a comet orbits our Sun, ancient beliefs and explanations of these phenomena and the most recent discovery of the first interstellar comet.
    Note: "Version: 20190401"--Title page verso. , "A Morgan & Claypool publication as part of IOP Concise Physics"--Title page verso. , 1. Introduction -- 2. Roller-coaster comets -- 2.1. The paths of comets -- 2.2. Two kinds of comets -- 2.3. Celestial clockwork -- 2.4. A Universe in motion -- 2.5. The gravity of the situation -- 2.6. Looping comets -- 2.7. Orbits of your own , 3. What comets are all about -- 3.1. Parts of a comet -- 3.2. What is a comet made of? -- 3.3. More on the comet nucleus -- 3.4. Comet scene investigation (CSI) using chemical fingerprints -- 3.5. The demise of comets -- 3.6. The origin of comets -- 3.7. A visit to a comet , 4. Comet crashes -- 4.1. What if? -- 4.2. The comets come to Earth -- 4.3. The killer comet , 5. Observing comets -- 5.1. Eye on a comet -- 5.2. Where to go? -- 5.3. When to look? -- 5.4. Expectations , 6. Hunting comets -- 6.1. Who discovers comets? -- 6.2. Where is our comet? -- 6.3. How bright a light? -- 6.4. Eureka! I've found a comet! -- 6.5. Starting your comet quest -- 6.6. Epilogue , 7. Postscript -- Appendices. A. Lesson suggestions for teachers -- B. Approximate dates for some famous meteor showers -- C. Typical comet visibility rates -- D. The brightest comets since 1935 -- E. Notable comets in history -- F. Books on historical comets -- G. Intermediate and advanced books on comets. , Also available in print. , Mode of access: World Wide Web. , System requirements: Adobe Acrobat Reader, EPUB reader, or Kindle reader.
    Additional Edition: ISBN 1-64327-443-0
    Language: English
    DOI: 10.1088/2053-2571/ab027e
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    Charité
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