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1994PASP..106..675M - Publ. Astron. Soc. Pac., 106, 675-682 (1994/June-0)
A method for correcting aspect solution errors in ROSAT HRI observations of compact sources.
MORSE J.A.
Abstract (from CDS):
HRI observations are wobbled primarily to smooth out variations in the pixel-to-pixel sensitivity of the detector and also to extend the lifetime of the microchannel plates in the detector since these decay at a given location as a function of the number of photons detected. However, the elongations introduced by the aspect errors inhibit the identification of possible extended X-Ray emission associated with sources such as pulsars and active galactic nuclei. In light of these results, I suggest that until the aspect errors are understood, observations of compact sources, where this effect may be important, should not be wobbled.
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