Download or read book Ultraviolet Spectroscopy of Planets written by Charles Adolph Barth and published by . This book was released on 1965 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultraviolet Astronomy and the Quest for the Origin of Life written by Ana I. Gomez de Castro and published by Elsevier. This book was released on 2021-03-27 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultraviolet Astronomy and the Quest for the Origin of Life addresses the use of astronomical observations in the ultraviolet range to better understand the generation of complex, life-precursor molecules. The origin of RNA is still under debate but seems to be related to the generation of pools of complex organic molecules submitted to heavy cycles of solution in water and drying. This book investigates whether these cycles require a planetary surface or may occur in space by examining both the theoretical and observational aspects of the role of UV radiation in the origin of life. This book offers the latest advances in these studies for astronomers, astrobiologists and planetary scientists. Addresses both the theoretical and observational aspects of the role of Ultraviolet (UV) radiation in the origin of life Builds on the requirements to produce prebiotic molecules in space and the implications for the origin of RNA Investigates the use of ultraviolet observations related to planetary system formation, the evolution of young planetary disks, and the interaction of stars with planetary atmospheres
Download or read book International Ultraviolet Explorer IUE Ultraviolet Spectral Atlas of Selected Astronomical Objects written by Chi-Chao Wu and published by . This book was released on 1992 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: A quick reference for the ultraviolet spectra of many categories of astronomical objects. Shows reflected sunlight from the Moon, planets, and asteroids, and emission from comets. Contains the spectra for: pre-main sequence stars, chemically peculiar stars, pulsating variables, subluminous stars, and Wolf-Rayet stars. Presents phenomena such as the chromospheric and transition region emissions from late-type stars; composite spectra of stars, gas streams, accretion disks and gas envelopes of binary systems; the behavior of gas ejecta shortly after the outburst of novac and supernovac; and the H II regions, planetary nebulae, and supernova remnants. Population 2 stars, globular clusters, and luminous stars in the Magellanic Clouds, M31, and M33, are included. Finally, gives the ultraviolet spectra of galaxies of different Hubble types and of active galaxies.
Download or read book Ultraviolet Spectroscopy of Planetary Nebulae written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Optical spectrophotometry of PW Vulpeculae (Nova Vul 1984 no. 1) is combined with ultraviolet data to estimate electron temperatures, densities, and abundances in the ejecta of this slow classical nova. The reddening, distance, and evolution of the ultraviolet spectrum are also discussed. Abundances are nearly solar, with the exception of Nitrogen, which is substantially higher. Although Neon has been reported to be enhanced in several novae, it does not seem to be the case for PW Vul. Photoionization model calculations are presented of the ejecta that give a reasonable match of the observed emission spectrum. A strong featureless continuum shows that very hot, presumably shock heated, gas plays a major role in determining the energetics of this nova. Emission from this hot gas is responsible for the ionization of the nebular gas. A calculation of the masses of both the hot coronal gas and the cooler nebular gas shows that the former may account for most of the mass of the ejecta. Ferland, Gary J. Unspecified Center...
Download or read book Future Directions in Ultraviolet Spectroscopy written by George Sonneborn and published by American Institute of Physics. This book was released on 2009-06-11 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Celebration of the scientific accomplishments of the Far Ultraviolet Spectroscopic Explorer mission and a look toward to the future of astronomical ultraviolet spectroscopy. FUSE expanded the far-ultraviolet discovery space by a factor of ~10,000 beyond previous space missions. The science drivers that will help define the next far-ultraviolet capability were discussed.
Download or read book Ultraviolet Radiation in the Solar System written by M. Vázquez and published by Springer Science & Business Media. This book was released on 2006-06-30 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the history of science the opening up of a new observational or experimental window is always followed by an increase in knowledge of the subject concerned. This is also the case with the subject of this book, ultraviolet radiation (hereafter UV). In principle, the ultraviolet range might be just one more of these windows, of no particular importance. However, the energy per UV photon provides the main peculiarity, its magnitude being great enough to produce important ch- ical reactions in the atmospheres of planets and satellites, thereby a?ecting the transmission of this radiation to the ground. The Sun is the main natural source of UV radiation in the Solar System and our planet is the body where its in?uences can be best tested and the only one where its relation with life can be studied. However, the terrestrial atmosphere blocksmostofthephotonsinthiselectromagneticrangeandastronomershavehad to develop various techniques (balloons, planes and rockets) to cross this barrier and access the information. These tools have been used in parallel to investigate the physical properties of the terrestrial atmosphere and the interaction of its constituents with light. This book will addresses most of these topics.
Download or read book Ultraviolet and X ray Spectroscopy of the Solar Atmosphere written by Kenneth J. H. Phillips and published by Cambridge University Press. This book was released on 2012-10-04 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: The solar atmosphere, above the Sun's surface layers, reaches mega-kelvin temperatures and high levels of dynamic activity through processes involving a pervading magnetic field. This book explores one of the principal means of understanding the solar atmosphere, its ultraviolet and soft X-ray emission. The ultraviolet and X-ray spectra of the Sun's atmosphere provide valuable information about its nature - the heat and density of its various parts, its dynamics, and chemical composition. The principles governing spectral line and continuous emission, and how spectral studies lead to deductions about physical properties, are described, together with spacecraft instrumentation from Skylab, SolarMax, Yohkoh, SOHO, TRACE, and Hinode. With introductions to atomic physics and diagnostic techniques used by solar spectroscopists, a list of emission lines in ultraviolet and soft X-ray regions, and a glossary of terms, this is an ideal reference for graduate students and researchers in astrophysics and solar physics.
Download or read book Planetary Atmospheres written by and published by . This book was released on 1965 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1964 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cross Calibration of Far UV Spectra of Solar System Objects and the Heliosphere written by Eric Quémerais and published by Springer Science & Business Media. This book was released on 2013-03-21 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the result of a working group sponsored by ISSI in Bern, which was initially created to study possible ways to calibrate a Far Ultraviolet (FUV) instrument after launch. In most cases, ultraviolet instruments are well calibrated on the ground, but unfortunately, optics and detectors in the FUV are very sensitive to contaminants and it is very challenging to prevent contamination before and during the test and launch sequences of a space mission. Therefore, ground calibrations need to be confirmed after launch and it is necessary to keep track of the temporal evolution of the sensitivity of the instrument during the mission. The studies presented here cover various fields of FUV spectroscopy, including a catalog of stellar spectra, datasets of Moon Irradiance, observations of comets and measurements of the interplanetary background. Detailed modelling of the interplanetary background is presented as well. This work also includes comparisons of older datasets with current ones. This raises the question of the consistency of the existing datasets. Previous experiments have been calibrated independently and comparison of the datasets may lead to inconsistencies. The authors have tried to check that possibility in the datasets and when relevant suggest a correction factor for the corresponding data.
Download or read book Technical Publications Announcements with Indexes written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 1556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guide to Annual Subject Index for Technical Publications Announcements Apr Dec 1962 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Ultraviolet Explorer Spectral Atlas of Planetary Nebulae Central Stars and Related Objects written by Walter A. Feibelman and published by . This book was released on 1988 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spectroscopy and Radiative Transfer of Planetary Atmospheres written by Kelly Chance and published by Oxford University Press. This book was released on 2017-06-02 with total page 145 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectroscopy and radiative transfer are rapidly growing fields within atmospheric and planetary science with implications for weather, climate, biogeochemical cycles, air quality on Earth, as well as the physics and evolution of planetary atmospheres in our solar system and beyond. Remote sensing and modeling atmospheric composition of the Earth, of other planets in our solar system, or of planets orbiting other stars require detailed knowledge of how radiation and matter interact in planetary atmospheres. This includes knowledge of how stellar or thermal radiation propagates through atmospheres, how that propagation affects radiative forcing of climate, how atmospheric pollutants and greenhouse gases produce unique spectroscopic signatures, how the properties of atmospheres may be quantitatively measured, and how those measurements relate to physical properties. This book provides this fundamental knowledge to a depth that will leave a student with the background to become capable of performing quantitative research on atmospheres. The book is intended for graduate students or for advanced undergraduates. It spans across principles through applications, with sufficient background for students without prior experience in either spectroscopy or radiative transfer. Courses based on this book are intended to be accompanied by the development of increasing sophisticated atmospheric and spectroscopic modeling capability (ideally, the student develops a computer model for simulation of atmospheric spectra from microwave through ultraviolet).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1989 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing of Earth Resources written by NASA Scientific and Technical Information Facility and published by . This book was released on 1970 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Middle Ultraviolet Its Science and Technology written by Alex Edward Samuel Green and published by . This book was released on 1966 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: The radiation from the sun / R. Tousey -- Atomic and molecular species / R.T. Brinkman, J. Dowling, Jr., A.E.S. Green, and A.T. Jusick -- The present status of calculations of properties of N2 and O2 / K. Ohno -- Atmospheric ozone / M. Griggs -- The radiance of the earth in the middle ultraviolet / A.E.S. Green -- Second-order-scattering contribution to the earth's radiance in the middle ultraviolet / J. Dowling, Jr., and A.E.S. Green -- A generalized chapman function / A.E.S. Green and J.D. Martin -- The middle ultraviolet and air pollution / A.E.S. Green, D.T. Williams, R.S. Sholtes, and J. Dowling, Jr. -- Electron impact excitation of the ultraviolet / A.E.S/ Green and R.S. Stolarski -- The ultraviolet spectroscopy of planets /C.A. Barth -- Astronomical ultraviolet radiation / K.L. Hallam -- Radiation from flames and chemical perturbation of the atmosphere /A.L. Berlad -- Gasdynamics of rocket exhaust plumes.
