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Title:
Two X-ray pulsars - 2S 1145-619 and 1E 1145.1-6141
Authors:
Lamb, R. C.; Markert, T. H.; Hartman, R. C.; Thompson, D. J.; Bignami, G. F.
Affiliation:
AA(MIT, Cambridge, Mass.), AB(MIT, Cambridge, Mass.)
Publication:
Astrophysical Journal, Part 1, vol. 239, July 15, 1980, p. 651-654. (ApJ Homepage)
Publication Date:
07/1980
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Astronomical Spectroscopy, Pulsars, X Ray Sources, Ariel 5 Satellite, Energy Spectra, Periodic Variations
DOI:
10.1086/158151
Bibliographic Code:
1980ApJ...239..651L

Abstract

Observations from the Einstein Observatory reveal a previously unreported source, 1E 1145.1-6141, within 15 arc min of 2S 1145-619 and of comparable intensity during 1979 July. Periodicity analysis of the data shows a 290 + or - 2 s period for the 2S source and a 298 + or - 4 s period for the 1E source, confirming the previous Ariel 5 report of two periods in this range from this region of the sky.

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