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The Crab Nebula: High energy x-ray observation of a lunar occultation


Staubert, R and Kendziorra, E and Trumper, J and Reppin, C and Hoffman, JA and Pounds, KA and Giles, AB and Morrison, LV, The Crab Nebula: High energy x-ray observation of a lunar occultation, The Astrophysical Journal, 201 pp. 15-19. ISSN 0004-637X (1975) [Refereed Article]


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Copyright 1975 The American Astronomical Society

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A lunar occultation of the Crab Nebula was observed at X-ray energies above 15 keV by a scintillation counter on a Skylark rocket launched from Spain on 1974 October 7. The angular extent of the region of emission of 75 percent of the total flux between 15 and 150 keV (average photon energy 39 keV) along position angle 263 is found to be 110" 25". The offset of the centroid of the extended source is such that its projection to the west of NP 0532 is 8" 6". The variation of size with energy, as found from this and other measurements, sets constraints on models for energy transfer along magnetic field lines in the Crab.

Item Details

Item Type:Refereed Article
Keywords:High energy X-ray astrophysics
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:High energy astrophysics and galactic cosmic rays
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Giles, AB (Dr Barry Giles)
ID Code:114107
Year Published:1975
Deposited By:Mathematics and Physics
Deposited On:2017-02-06
Last Modified:2017-05-09
Downloads:166 View Download Statistics

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