Published February 1, 1972 | Version v1
Journal article

Probable precursor to the x-ray nova Centaurus XR-4

Description

A short-lived burst of X-rays from a region of the sky containing Cen XR4 occurred on 1969 July 7 at 0152 UT, about 50 hours before the first reported observation of the X-ray nova outburst of Cen XR-4. The event was observable above background for a period of about 10 minutes. If the event was due to Cen XR-4, its maximum intensity was more than twice the maximum reported for the subsequent X-ray nova and more than 4 times that of Sco X-1 in a nonflaring state.

Additional details

Identifiers

Publishing Information

Journal Title
The Astrophysical Journal
Journal Volume
171
Journal Issue
3
Series
Astrophys. J.
Journal Page Range
L87
ISSN
0004-637X

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
3020995
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
COSMIC X-RAY SOURCES; EMISSION SPECTRA; NOVAE
Descriptors DEC
SPECTRA; STARS

Optional Information

Notes
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