NGC 4593 - a bright Seyfert galaxy with variable X-ray emission
Open Access
- 1 September 1979
- journal article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 188 (1) , 1P-3P
- https://doi.org/10.1093/mnras/188.1.1p
Abstract
Ariel V observations of the X-ray source 4U 1240 – 05 support suggestions that it should be identified with the galaxy NGC 4593 recently found to be a type 1 Seyfert. Data on the source position and spectrum are presented. The X-ray intensity appears to have varied by a factor of more than two since the Uhuru observation.Keywords
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