87 citations · 87 across the 1 of their papers we have counts for
3 papers
astro-ph.GA2009★ 87 cited
NTT, Spitzer and Chandra spectroscopy of SDSSJ095209.56+214313.3: the most luminous coronal-line supernova ever observed, or a stellar tidal disruption event ?
S. Komossa, H. Zhou, A. Rau +9
The galaxy SDSSJ0952+2143 showed remarkable emission-line properties first reported in 2008 (paper I), which are the consequence of a powerful high-energy flare. Here we report fol…
astro-ph2004
Discovery of high-amplitude X-ray variability in the Seyfert-LINER transition galaxy NGC7589
W. Yuan, St. Komossa, D. Xu +3
We present the first result of a programme to search for large flux variations in the X-ray sources of the XMM Serendipitous Survey compared to previous ROSAT observations. An incr…
astro-ph2003
An AGN Sample with High X-ray-to-optical Flux Ratio from RASS II.Optical Emission Line Properties of Seyfert 1 Type AGN
D. W. Xu, Stefanie Komossa, J. Y. Wei +2
This work studies the optical emission line properties of a sample of 155 low-redshift bright X-ray selected ROSAT Seyfert~1 type AGN for which adequate signal-to-noise ratio spect…