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The BL LAC phenomenon: X-ray observations of transition objects

机译：BL LaC现象：过渡物体的X射线观测

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Much of the effort during this period went into a separate journal paper on one of our sample galaxies, NGC 326. We discovered that this previously X-ray unobserved galaxy is embedded in bright asymmetrical X-ray-emitting cluster gas. Within the cluster emission, there are local enhancements of X-ray emission coincident with NGC 326 and five of the 10 brightest galaxies in the field, suggesting that the galaxy atmospheres are not fully integrated into the cluster gas as a whole, with implications for the evolution of the cluster as a dynamical entity. NGC 326 has a particularly interesting radio structure. Our ROSAT measurements have shown for the first time that the surrounding medium may be largely responsible for this, through buoyancy forces. An analysis of the high resolution interferometer (HRI) data we are beginning to receive for sample sources has begun. Detection strengths are comparable to our predictions, yielding good data sets. We are currently investigating the systematic uncertainties in the point response function for our data due to attitude-correction errors. An ISO proposal was submitted and partially accepted for a follow-up study of the central gas and dust regions in some of the sample galaxies. Negotiations with other observers as to which specific galaxies will be measured are underway.

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