Stratospheric Observatory For Infrared Astronomy

Author : National Aeronautics and Space Adm Nasa
Publisher : Unknown
Page : 26 pages
File Size : 53,5 Mb
Release : 2018-10-19
Category : Electronic
ISBN : 172899943X

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Sofia by National Aeronautics and Space Adm Nasa Pdf

SOFIA is described as it was originally (May 1988) for the Space and Earth Sciences Advisory Committee (SESAC). The format and questions were provided by SESAC as a standard for judging the merit of potential U.S. space science projects. This version deletes Section IIF, which addressed development costs of the SOFIA facility. SOFIA's unique astronomical potential is described and it is shown how it complements and supports existing and planned facilities. Erickson, E. F. and Davidson, J. A. and Thorley, G. and Caroff, L. J. Ames Research Center RTOP 188-78-60...

Author : S. J. Bell Burnell,John Keith Davies,R. S. Stobie
Publisher : Unknown
Page : 281 pages
File Size : 50,8 Mb
Release : 1992
Category : Infrared astronomy
ISBN : OCLC:1303282821

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Next Generation Infrared Space Observatory by S. J. Bell Burnell,John Keith Davies,R. S. Stobie Pdf

Individual topics addressed include: the future of space infrared astronomy, infrared space studies of solar system objects, the interstellar medium and star formation, stellar infrared astronomy with Edison, the Infrared Space Observatory, Stratospheric Observatory For Infrared Astronomy, Near-Infrared Camera and Multiobject Spectrometer, Space Infrared Telescope Facility, plans for submillimeter and infrared satellites in Japan, future plans for space astronomy and astrophysics. Also discussed are: optimized radiative cooling of infrared space telescopes and applications to possible missions, Edison: the next generation infrared space observatory, Edison Mission: launch vehicle and spacecraft considerations, orbits for radiatively cooled space telescopes, optical design and testing of a fast large-aperture infrared space telescope, closed cycle coolers for space applications, aspects of data flow for an Edison-type observatory.

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 186 pages
File Size : 53,6 Mb
Release : 2018-07-17
Category : Electronic
ISBN : 1722973129

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Computation of the Fluid and Optical Fields about the Stratospheric Observatory for Infrared Astronomy (Sofia) and the Coupling of Fluids, Dynamics, and Control Laws on Parallel Computers by National Aeronautics and Space Administration (NASA) Pdf

The June 1992 to May 1993 grant NCC-2-677 provided for the continued demonstration of Computational Fluid Dynamics (CFD) as applied to the Stratospheric Observatory for Infrared Astronomy (SOFIA). While earlier grant years allowed validation of CFD through comparison against experiments, this year a new design proposal was evaluated. The new configuration would place the cavity aft of the wing, as opposed to the earlier baseline which was located immediately aft of the cockpit. This aft cavity placement allows for simplified structural and aircraft modification requirements, thus lowering the program cost of this national astronomy resource. Three appendices concerning this subject are presented. Atwood, Christopher A. Unspecified Center BOEING 747 AIRCRAFT; CAVITY FLOW; COMPUTATIONAL FLUID DYNAMICS; CONTROL THEORY; PARALLEL COMPUTERS; SOFIA (AIRBORNE OBSERVATORY); TRANSONIC FLOW; UNSTEADY FLOW; CAVITIES; DYNAMIC CONTROL; FLOW DISTRIBUTION; NAVIER-STOKES EQUATION; NONLINEAR SYSTEMS...

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 54 pages
File Size : 53,5 Mb
Release : 2018-05-23
Category : Electronic
ISBN : 1719507120

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Aerodynamic and Acoustic Flight Test Results and Results for the Stratospheric Observatory for Infrared Astronomy by National Aeronautics and Space Administration (NASA) Pdf

As part of the Stratospheric Observatory for Infrared Astronomy program, a 747SP airplane was modified to carry a 2.5-m telescope in the aft section of the fuselage. The resulting airborne observatory allows for observations above 99 percent of the water vapor in the atmosphere. The open cavity created by the modifications had the potential to significantly affect the airplane in the areas of aerodynamics and acoustics. Several series of flight tests were conducted to clear the operating envelope of the airplane for astronomical observations, planned to be performed between the altitudes of 35,000 ft and 45,000 ft. The flight tests were successfully completed. Cavity acoustics were below design limits, and the overall acoustic characteristics of the cavity were better than expected. The modification did have some effects on the stability and control of the airplane, but these effects were not significant. Airplane air data systems were not affected by the modifications. This paper describes the methods used to examine the aerodynamics and acoustic data from the flight tests and provides a discussion of the flight-test results in the areas of cavity acoustics, stability and control, and air data. Cumming, Stephen B. and Smith, Mark S. and Cliatt, Larry J. and Frederick, Michael A. Armstrong Flight Research Center AERODYNAMIC CHARACTERISTICS; AIR DATA SYSTEMS; FLIGHT TESTS; ACOUSTIC PROPERTIES; OBSERVATORIES; WATER VAPOR; ASTRONOMY; WIND TUNNEL TESTS; FUSELAGES; TELESCOPES

Author : Michael Werner,Peter Eisenhardt
Publisher : Princeton University Press
Page : 128 pages
File Size : 50,9 Mb
Release : 2019-06-25
Category : Science
ISBN : 9780691191966

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More Things in the Heavens by Michael Werner,Peter Eisenhardt Pdf

A sweeping tour of the infrared universe as seen through the eyes of NASA’s Spitzer Space Telescope Astronomers have been studying the heavens for thousands of years, but until recently much of the cosmos has been invisible to the human eye. Launched in 2003, the Spitzer Space Telescope has brought the infrared universe into focus as never before. Michael Werner and Peter Eisenhardt are among the scientists who worked for decades to bring this historic mission to life. Here is their inside story of how Spitzer continues to carry out cutting-edge infrared astronomy to help answer fundamental questions that have intrigued humankind since time immemorial: Where did we come from? How did the universe evolve? Are we alone? In this panoramic book, Werner and Eisenhardt take readers on a breathtaking guided tour of the cosmos in the infrared, beginning in our solar system and venturing ever outward toward the distant origins of the expanding universe. They explain how astronomers use the infrared to observe celestial bodies that are too cold or too far away for their light to be seen by the eye, to conduct deep surveys of galaxies as they appeared at the dawn of time, and to peer through dense cosmic clouds that obscure major events in the life cycles of planets, stars, and galaxies. Featuring many of Spitzer’s spectacular images, More Things in the Heavens provides a thrilling look at how infrared astronomy is aiding the search for exoplanets and extraterrestrial life, and transforming our understanding of the history and evolution of our universe.

Author : Anonim
Publisher : Unknown
Page : 54 pages
File Size : 44,9 Mb
Release : 1991
Category : Electronic
ISBN : NASA:31769000593858

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SOFIA: A Stratospheric Observatory for Infrared Astronomy by Anonim Pdf

Author : Ian S. Glass
Publisher : Cambridge University Press
Page : 200 pages
File Size : 44,7 Mb
Release : 1999-08-13
Category : Nature
ISBN : 0521633850

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Handbook of Infrared Astronomy by Ian S. Glass Pdf

A clear and concise practical handbook on all aspects of infrared astronomy, for graduate students, researchers and keen amateurs.

Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
Page : 46 pages
File Size : 45,6 Mb
Release : 2019-01-14
Category : Science
ISBN : 1794081658

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Maximum Expected Wall Heat Flux and Maximum Pressure After Sudden Loss of Vacuum Insulation on the Stratospheric Observatory for Infrared Astronomy (Sofia) Liquid Helium (Lhe) Dewars by National Aeronautics and Space Adm Nasa Pdf

The aircraft-based Stratospheric Observatory for Infrared Astronomy (SOFIA) is a platform for multiple infrared observation experiments. The experiments carry sensors cooled to liquid helium (LHe) temperatures. A question arose regarding the heat input and peak pressure that would result from a sudden loss of the dewar vacuum insulation. Owing to concerns about the adequacy of dewar pressure relief in the event of a sudden loss of the dewar vacuum insulation, the SOFIA Program engaged the NASA Engineering and Safety Center (NESC). This report summarizes and assesses the experiments that have been performed to measure the heat flux into LHe dewars following a sudden vacuum insulation failure, describes the physical limits of heat input to the dewar, and provides an NESC recommendation for the wall heat flux that should be used to assess the sudden loss of vacuum insulation case. This report also assesses the methodology used by the SOFIA Program to predict the maximum pressure that would occur following a loss of vacuum event. NASA/TM-2014-218540, NESC-RP-13-00911, L-20483, NF1676L-20011 Ungar, Eugene K. Johnson Space Center

Author : Anonim
Publisher : Unknown
Page : 34 pages
File Size : 55,8 Mb
Release : 1990
Category : Government publications
ISBN : STANFORD:36105111214057

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SIRTF, Space Infrared Telescope Facility by Anonim Pdf

Author : David L. Clements
Publisher : CRC Press
Page : 292 pages
File Size : 53,5 Mb
Release : 2014-11-21
Category : Science
ISBN : 9781482237276

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Infrared Astronomy – Seeing the Heat by David L. Clements Pdf

Uncover the Secrets of the Universe Hidden at Wavelengths beyond Our Optical Gaze William Herschel’s discovery of infrared light in 1800 led to the development of astronomy at wavelengths other than the optical. Infrared Astronomy – Seeing the Heat: from William Herschel to the Herschel Space Observatory explores the work in astronomy that relies on observations in the infrared. Author David L. Clements, a distinguished academic and science fiction writer, delves into how the universe works, from the planets in our own Solar System to the universe as a whole. The book first presents the major telescopes in the world of observational infrared astronomy, explains how infrared light is detected through various kinds of telescopes, and describes practical problems that send infrared astronomers to the tops of mountains and their telescopes into orbit and beyond. Much of the book focuses on what infrared astronomers find in their observations. You’ll discover what infrared astronomy reveals about the planets, moons, and other bodies that constitute our Solar System; star formation and stellar evolution; the processes that shape galaxies; and dark energy and dark matter. Infrared astronomy has revolutionized our understanding of the universe and has become essential in studying cosmology. Accessible to amateur astronomers, this book presents an overview of the science and technology associated with infrared astronomy. With color figures, it shows you how infrared astronomy provides insights into the workings of the universe that are unavailable at other wavelengths.

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Page : 42 pages
File Size : 40,9 Mb
Release : 2018-05-22
Category : Electronic
ISBN : 1719398976

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Maximum Expected Wall Heat Flux and Maximum Pressure After Sudden Loss of Vacuum Insulation on the Stratospheric Observatory for Infrared Astronomy (Sofia) Liquid Helium (Lhe) Dewars by National Aeronautics and Space Administration (NASA) Pdf

The aircraft-based Stratospheric Observatory for Infrared Astronomy (SOFIA) is a platform for multiple infrared observation experiments. The experiments carry sensors cooled to liquid helium (LHe) temperatures. A question arose regarding the heat input and peak pressure that would result from a sudden loss of the dewar vacuum insulation. Owing to concerns about the adequacy of dewar pressure relief in the event of a sudden loss of the dewar vacuum insulation, the SOFIA Program engaged the NASA Engineering and Safety Center (NESC). This report summarizes and assesses the experiments that have been performed to measure the heat flux into LHe dewars following a sudden vacuum insulation failure, describes the physical limits of heat input to the dewar, and provides an NESC recommendation for the wall heat flux that should be used to assess the sudden loss of vacuum insulation case. This report also assesses the methodology used by the SOFIA Program to predict the maximum pressure that would occur following a loss of vacuum event. Ungar, Eugene K. Johnson Space Center SOFIA (AIRBORNE OBSERVATORY); CRYOGENIC EQUIPMENT; HEAT FLUX; LIQUID HELIUM; VACUUM; INSULATION; METHODOLOGY; VENTING; LOSSES; FAILURE; PLATFORMS

Author : Gordon C. Augason,Hyron Spinrad
Publisher : Unknown
Page : 28 pages
File Size : 45,8 Mb
Release : 1965
Category : Infrared astronomy
ISBN : STANFORD:36105024763083

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Infrared Astronomy Review for the Astronomy Subcommittee of the National Aeronautics and Space Administration by Gordon C. Augason,Hyron Spinrad Pdf

Author : Siegfried Wagner,Matthias Steinmetz,Arndt Bode,Matthias Brehm
Publisher : Springer Science & Business Media
Page : 700 pages
File Size : 53,6 Mb
Release : 2008-10-22
Category : Mathematics
ISBN : 9783540691822

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High Performance Computing in Science and Engineering, Garching/Munich 2007 by Siegfried Wagner,Matthias Steinmetz,Arndt Bode,Matthias Brehm Pdf

For the fourth time, the Leibniz Supercomputing Centre (LRZ) and the Com- tence Network for Technical, Scienti c High Performance Computing in Bavaria (KONWIHR) publishes the results from scienti c projects conducted on the c- puter systems HLRB I and II (High Performance Computer in Bavaria). This book reports the research carried out on the HLRB systems within the last three years and compiles the proceedings of the Third Joint HLRB and KONWIHR Result and Reviewing Workshop (3rd and 4th December 2007) in Garching. In 2000, HLRB I was the rst system in Europe that was capable of performing more than one Tera op/s or one billion oating point operations per second. In 2006 it was replaced by HLRB II. After a substantial upgrade it now achieves a peak performance of more than 62 Tera op/s. To install and operate this powerful system, LRZ had to move to its new facilities in Garching. However, the situation regarding the need for more computation cycles has not changed much since 2000. The demand for higher performance is still present, a trend that is likely to continue for the foreseeable future. Other resources like memory and disk space are currently in suf cient abundance on this new system.

Author : Anonim
Publisher : Unknown
Page : 500 pages
File Size : 40,6 Mb
Release : 1995
Category : Aeronautics
ISBN : UVA:X004872569

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Scientific and Technical Aerospace Reports by Anonim Pdf

Author : Emily Levesque
Publisher : Sourcebooks, Inc.
Page : 336 pages
File Size : 49,6 Mb
Release : 2020-08-04
Category : Science
ISBN : 9781492681083

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The Last Stargazers by Emily Levesque Pdf

The story of the people who see beyond the stars—an astronomy book for adults still spellbound by the night sky. Humans from the earliest civilizations through today have craned their necks each night, using the stars to orient themselves in the large, strange world around them. Stargazing is a pursuit that continues to fascinate us: from Copernicus to Carl Sagan, astronomers throughout history have spent their lives trying to answer the biggest questions in the universe. Now, award-winning astronomer Emily Levesque shares the stories of modern-day stargazers in this new nonfiction release, the people willing to adventure across high mountaintops and to some of the most remote corners of the planet, all in the name of science. From the lonely quiet of midnight stargazing to tall tales of wild bears loose in the observatory, The Last Stargazers is a love letter to astronomy and an affirmation of the crucial role that humans can and must play in the future of scientific discovery. In this sweeping work of narrative science, Levesque shows how astronomers in this scrappy and evolving field are going beyond the machines to infuse creativity and passion into the stars and space and inspires us all to peer skyward in pursuit of the universe's secrets.