Last edited by Zujind
Thursday, August 6, 2020 | History

2 edition of Infrared observations of the outer solar corona found in the catalog.

Infrared observations of the outer solar corona

Robert M. MacQueen

Infrared observations of the outer solar corona

by Robert M. MacQueen

  • 196 Want to read
  • 39 Currently reading

Published by National Aeronautics and Space Administration; for sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Va. in [Washington] .
Written in English

    Places:
  • Sun
    • Subjects:
    • Infrared astronomy.,
    • Sun -- Corona.

    • Edition Notes

      Bibliography: p. 35-36.

      Statementby Robert M. MacQueen.
      SeriesNASA contractor report, NASA CR-969, NASA contractor report ;, NASA CR-969.
      Classifications
      LC ClassificationsTL521.3.C6 A3 no. 969
      The Physical Object
      Paginationix, 48 p.
      Number of Pages48
      ID Numbers
      Open LibraryOL5634812M
      LC Control Number68061887

      For more than a half-century, astronomers have tried to figure out what causes the corona to be so hot. It is one of the most vexing problems in astrophysics. Solar physicist Bart De Pontieu of the Lockheed Martin Solar & Astrophysics Laboratory says, “The problem of . ed observation. eismology. The hottest layer of the solar atmosphere is the convection zone b. photosphere. c. chromosphere. Which of the layers of the Sun is located the farthest from the center of the Sun? sphere phere.

      An international team of solar physicists, including academics from Northumbria University, in Newcastle upon Tyne, has recently measured the global magnetic field of the outer most layer of the Sun’s atmosphere, the solar corona, for the first time. - HeritageDaily - Archaeology News. Solar observation is the scientific endeavor of studying the Sun and its behavior and relation to the Earth and the remainder of the Solar rate solar observation began thousands of years ago. That initial era of direct observation gave way to telescopes in the s followed by satellites in the twentieth century.

      The total wavelength-integrated energy from sunlight is referred to as the Total Solar Irradiance (TSI). It is measured from satellites to be about Watts/m2 at solar minimum to Watts/m2 at solar maximum. An increase of % in the TSI represents about Watts/m2 change in energy input at the top of the atmosphere. Ground-based observations reveal the first images of the solar corona in the near-infrared emission line of highly ionized iron, or Fe XI nm.


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Infrared observations of the outer solar corona by Robert M. MacQueen Download PDF EPUB FB2

Infrared observations of the outer solar corona. [Washington] National Aeronautics and Space Administration; for sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Va.

[] (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Infrared observations of the outer solar corona book / Contributors.

The p infrared coronal radiance has been measured with a ground-based telescope during the total solar eclipse of 12 Xovember from 2Re to 6 Re, and during a stratospheric balloon flight of a coronagraph, from Re to 10 Re. Features superposed on a continuum corona at Re and Re were observed in the former circumstances, and features at Ro, Re, and Re noted from.

Infrared observations of the outer solar corona Infrared observations of outer solar corona at wavelength of 22 microns.

Document ID. Document Type. Contractor Report (CR) Authors. Mac Queen, R. M.(Johns Hopkins Univ. Not Available adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86AAuthor: Robert Moffat MacQueen.

corona (solar radius). However, coronal seismology in EUV lines fails for higher altitudes because of rapid decrease in line intensity. aim to use radio observations to estimate the plasma parameters of the outer solar corona (> R0). Abstract.

Observations of the solar corona in a narrow band filter at wavelength µm during the total solar eclipse of 11 July are described, and compared with results obtained by two observers during the eclipse of Novemberand shortly lack of any observable. signature of thermal emission in the results suggests that during /67, the near-solar environs.

Penn, M. J., New Observations of Infrared Coronal Emission Lines, pp.in Infrared Tools o.f Solar Astrophysics, (J. Kuhn and M. Penn, eds.), World Scientific Publ., Singapore 6 Summary The suggested set of observations offers an interesting analysis of both the solar corona and the interplanetary medium near the Sun.

The solar corona is the outermost layer of the Sun's atmosphere, consisting of hot, diffuse, and highly ionized plasma. The magnetic field in this region is expected to drive many of its physical properties but has been difficult to measure with observations.

Yang et al. used near-infrared imaging spectroscopy to determine the electron density and magnetohydrodynamic wave speed in the corona.

Infrared waves are absorbed by water and carbon dioxide molecules, which are more concentrated low in Earth’s atmosphere. For this reason, infrared astronomy is best done from high mountaintops, high-flying airplanes, and spacecraft.

After infrared comes the familiar microwave, used in short-wave communication and microwave ovens. A corona (Latin for 'crown', in turn derived from Ancient Greek κορώνη, korṓnē, 'garland, wreath') is an aura of plasma that surrounds the Sun and other Sun's corona extends millions of kilometres into outer space and is most easily seen during a total solar eclipse, but it is also observable with a coronagraph.

Spectroscopy measurements indicate strong ionization in the. Infrared observations of the outer solar corona. By R. Macqueen. Abstract. Outer solar coronal IR radiance measured by ground telescope and stratosphere balloon flight, noting interplanetary dust thermal emissio Topics: SPACE SCIENCES.

Léna P.J. () Infrared Observations of the Sun. In: Fazio G.G. (eds) Infrared and Submillimeter Astronomy. Astrophysics and Space Science Library (A Series of Books on the Recent Developments of Space Science and of General Geophysics and Astrophysics Published in Connection with the Journal Space Science Reviews), vol Springer, Dordrecht.

Edited by Rainer Beck, Heinz Hilbrecht, Klaus Reinsch and Peter Völker, 6 by 9 inches, hardbound, pages.

$ About This Book The Solar Astronomy Astronomy Handbook is not so much about the Sun, but about the opportunities for amateur astronomers to observe the Sun. Compared with other areas of astronomy solar observing has a number of advantages. An international team of solar physicists, including academics from Northumbria University, in Newcastle upon Tyne, has recently measured the global magnetic field of the outer.

Using the Fe XIII nm and nm infrared spectral lines, it can observe the solar corona in the range of about to solar radii from the solar center through imaging spectroscopy and spectropolarimetry.

Untilsolar astronomy was extremely simple: scientists studied the light from the Sun, the sunspots that occasionally dotted the Sun's surface, and viewed the corona during solar. The origin and heating of the solar corona, and the coronae of late-type stars, are still mysteries. Most of the proposed scenarios are based on dynamic magnetic fields rooted at the arcsec scale in the photosphere.

However, none of the processes have been clearly identified by observations or theory. Remote observations of the solar photospheric light scattered by electrons (the K-corona) and dust (the F-corona or zodiacal light) have been.

University of Massachusetts Amherst [email protected] Amherst Doctoral Dissertations - February Observations of the near-infrared solar corona and.

Previous observations 7 of Alfvénic waves in the corona revealed amplitudes far too small ( km s −1) to supply the energy flux (– W m −2) required to drive the fast solar. The twisting and ever-shifting magnetic field of the Sun’s outer atmosphere can be mapped using near-infrared observations of the solar corona, researchers say.

The international team, led by Zihao.Figure Observations from the Spitzer Space Telescope (SST). These infrared images—a region of star formation, the remnant of an exploded star, and a region where an old star is losing its outer shell—show just a few of the observations made and transmitted back to Earth from the SST.The twisting, ever-shifting and metrically elusive magnetic field of the Sun's ephemeral outer atmosphere can be mapped using near-infrared observations of the solar corona.