Published November 15, 1975 | Version v1
Journal article Metadata-only

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

Creators

  • 1. Columbia Astrophysics Laboratory, Columbia University, 538 W. 120th St., New York, NY 10027

Description

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

Additional details

Additional titles

Augmented title (English)
0.6 to 23 keV

Identifiers

DOI
10.1086/181971;

Publishing Information

Journal Title
The Astrophysical Journal
Journal Volume
202
Journal Issue
1
Series
Astrophys. J., Lett.
Journal Page Range
L21
ISSN
0004-637X

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
7246983
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
COSMIC X-RAY SOURCES; CRAB NEBULA; ECLIPSE; ENERGY; KEV RANGE 01-10; KEV RANGE 10-100; PHOTONS; PULSARS; X RADIATION
Descriptors DEC
COSMIC RADIO SOURCES; COSMIC RAY SOURCES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; IONIZING RADIATIONS; KEV RANGE; MASSLESS PARTICLES; NEBULAE; RADIATIONS; SUPERNOVA REMNANTS

Optional Information

Notes
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