Published November 1, 1974 | Version v1
Journal article

Upper limit to the X-ray flux from the supernova in NGC 5253 above 7 keV from the OSO-7

  • 1. University of California, San Diego

Description

We report upper limits to the X-ray flux from the supernova in NGC 5253 (SN 1972e, optical maximum 1972 May 4). The observations were made with the UCSD OSO-7 X-ray telescope during 1972 March 29- April 20, August 26-28, and September 29-October 10. The 2 a upper limits above zero flux were respectively 1.2, 5.2, and 1.7 >c 10-10 ergs s ' in the 7-27 keV range. If a distance of 3.5 Mpc to NGC 5253 is assumed, these limits correspond respectively to 1.7,7.3, and 2.4 >c 1041 ergs cm-2 s. Subject headings: galaxies, individual - supernovae - X-ray sources

Additional details

Identifiers

Publishing Information

Journal Title
The Astrophysical Journal
Journal Volume
193
Journal Issue
3
Series
Astrophys. J.
Journal Page Range
535
ISSN
0004-637X

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
6183717
Subject category
S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
Descriptors DEI
COSMIC X-RAY SOURCES; GALAXIES; LUMINOSITY; PULSARS; SUPERNOVAE; X RADIATION
Descriptors DEC
COSMIC RADIO SOURCES; COSMIC RAY SOURCES; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; STARS

Optional Information

Notes
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