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Title:
Swift observations of the Moon: A search for the lunar albedo and occultation
Authors:
Dewitt, Vanessa C.
Affiliation:
AA(The University of Alabama in Huntsville)
Publication:
Proquest Dissertations And Theses 2008. Section 0278, Part 0606 80 pages; [M.S. dissertation].United States -- Alabama: The University of Alabama in Huntsville; 2008. Publication Number: AAT 1458199. Source: MAI 47/01, Feb 2009
Publication Date:
00/2008
Origin:
UMI
Comment:
Publication Number: AAT 1458199; ISBN: 9780549747871; Advisor: Miller, Richard
Bibliographic Code:
2008PhDT.........4D

Abstract

The lunar albedo is a weak astrophysical source at soft X-ray energies (E < 2 keV), while at higher energies (E > 0.8 MeV) the Moon is a bright source of electromagnetic radiation. In addition, relative to the cosmic diffuse background, the Moon appears to transition from a sink to a source as the energy of emitted photons increases from keV to GeV energies.

Using NASA's Swift telescope, data obtained from 2269 lunar observations were used to study the lunar albedo in the 15-150 keV X-ray range. While the Moon went undetected, lunar albedo flux upper limits were derived in 5 energy bands. In addition, the ratio of the lunar albedo to the cosmic diffuse background suggests that the Moon does indeed transition from an astrophysical sink to a source at hard X-ray energies.

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Database: Astronomy
Physics
arXiv e-prints