activity
19952023
most citedSecond ROSAT all-sky survey (2RXS) source catalogue

491 citations · 6.2k across the 101 of their papers we have counts for

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Showing 2005Show all

6 papers · 1 filter

astro-ph2005★ 45 cited

XMM-Newton observations of bright ROSAT selected active galactic nuclei with low intrinsic absorption

L. C. Gallo, I. Lehmann, W. Pietsch +4

We present a sample of twenty-one ROSAT bright active galactic nuclei (AGN), representing a range of spectral classes, and selected for follow-up snap-shot observations with XMM-Ne…

astro-ph2005★ 19 cited

XMM-Newton Spectroscopy of the Highly Polarized and Luminous Broad Absorption Line Quasar CSO 755

O. Shemmer, W. N. Brandt, S. C. Gallagher +4

We present the results from XMM-Newton observations of the highly optically polarized broad absorption line quasar (BALQSO) CSO 755. By analyzing its X-ray spectrum with a total of…

astro-ph2005★ 20 cited

A possible line-like emission feature at 8 keV in the Seyfert 1.2 UGC 3973

L. C. Gallo, A. C. Fabian, Th. Boller +1

Two short X-ray exposures (< 3600 s each) of the radio-quiet Seyfert 1.2 galaxy UGC 3973 (Mrk 79) were conducted with XMM-Newton as part of an AGN snap-shot survey. In this paper w…

astro-ph2005★ 28 cited

XMM-Newton spectral properties of the Ultraluminous IRAS Galaxy Mrk 273

I. Balestra, Th. Boller, L. Gallo +2

We present a 23 ks XMM-Newton observation of the ULIRG Mrk 273. The hard X-ray spectrum can be modeled by a highly absorbed power law plus an Fe Kalpha emission line. The iron line…

astro-ph2005★ 19 cited

Investigating ionized disc models of the variable narrow-line Seyfert 1 PG 1404+226

J. Crummy, A. C. Fabian, W. N. Brandt +1

We investigate the use of relativistically blurred photoionized disc models on an XMM-Newton observation of the Narrow Line Seyfert 1 galaxy PG 1404+226. The model is designed to r…

astro-ph2005★ 35 cited

XMM-Newton Spectroscopy of the Starburst Dominated Ultra Luminous Infrared Galaxy NGC 6240

Hagai Netzer, Doron Lemze, Shai Kaspi +5

We present new XMM-Newton observation of the Ultra Luminous Infrared Galaxy (ULIRG) NGC 6240. We analyze the reflecting grating spectrometer (RGS) data, and data from the other ins…