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RX J1624.9+7554: A new X-ray transient AGN

D. Grupe·H. -C. Thomas·K. M. Leighly
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Abstract

We report the discovery of a new X-ray transient AGN, RX J1624.9+7554. This object appeared to be bright in the ROSAT All-Sky Survey, but had turned off in two pointed observations about one and a half years later. The optical identification spectrum shows a non-emission line spectrum of a spiral galaxy at z=0.064. %We will discuss several hypotheses that can explain the peculiar behaviour of %this object. We will discuss several hypotheses that can explain the peculiar behaviour of this object.

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D. Grupe, H. -C. Thomas, K. M. Leighly. 1999-09-06. RX J1624.9+7554: A new X-ray transient AGN. https://arxiv.org/abs/astro-ph/9909101

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