Seyfert galaxies as X-ray sources

About: This article is published in Monthly Notices of the Royal Astronomical Society.The article was published on 1978-06-01 and is currently open access. It has received 139 citations till now. The article focuses on the topics: X-ray astronomy & Galaxy.

Figures

Table 3-5 Catalogues searched fo r id e n t i f ic a t io n can d id a tes

Figure 7. L og# /log S plot for 2A catalogue sources. Number of sources Æ ( |6 | > 10°) of intensity >S, is plotted against intensity S. N is corrected for sky coverage. Known galactic sources, PST sources and sources in confused regions have been excluded, together with the transient 2A 0042+ 323. 2A 1322 - 427 (NGC 5128) has been included at its ‘average’ intensity. A straight line of slope -1 .5 is shown for comparison.

Table 3-1 Some p ro p e r tie s o f MOG 8-11-11

Figure 1. Part o f a 51-orbit superimposed data set showing the Coma Cluster, 2 A 1257 + 283, a source with improved position 2 A 1346+ 266 (was 3U 1349 + 24), identified now with A1795 and two new Ariel sources 2 A 1415+ 255 (identified w ith a Seyfert Galaxy N G C5548) and 2 A 1219 + 305. The bestfitting background and the sky exposure tim e (centre o f collimator) are also shown.

Table 3-4 S e y fe rt g a la x ie s producing a PST s ig n if ic a n c e ju s t below th e acceptance th re sh o ld

Table 3 , Coordinates defining approxim ately the areas of sky containing further possible sources and called ‘confused regions’ (see Section 9).