Measurement of the spatial structure of the X-ray source in the Crab Nebula. II. Observation of the 1974 December 28 lunar occultation

Journal Article · Sat Nov 15 04:00:00 EST 1975 · Astrophys. J., Lett., v. 202, no. 1, pp. L21-L24

DOI:https://doi.org/10.1086/181971· OSTI ID:4113316

Kestenbaum, H L; Ku, W; Novick, R; Wolff, R S

The 1974 December 28 (UT) lunar occulation of the Crab Nebula has been observed in the 0.6--23 keV X-ray range at a position angle of 300degree. Reappearance of the region from 62'' west of the pulsar NP 0532 to 62'' east was observed. Analysis of the nonpulsed portion of the data reveals that the X-ray centroid is 12''./sub /8plus-or-minus0''./sub /3 west of the pulsar, averaged over the 0.6--23 keV range. The total width of the X-ray distribution has a mean value of 60''./sub /5plus-or-minus1''./sub /5 and decreases with increasing photon energy. (AIP)

• Research Organization: Columbia Astrophysics Laboratory, Columbia University, 538 W. 120th St., New York, NY 10027
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-018111
• OSTI ID: 4113316
• Journal Information: Astrophys. J., Lett., v. 202, no. 1, pp. L21-L24, Journal Name: Astrophys. J., Lett., v. 202, no. 1, pp. L21-L24; ISSN AJLEA
• Country of Publication: United States
• Language: English

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*COSMIC X-RAY SOURCES-- X RADIATION
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N56300* --Physics (Astrophysics & Cosmology)--Quasi-stellar
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