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7 papers · 1 filter
The Behavior of Matter under Extreme Conditions
F. Paerels, M. Mendez, M. Agueros +29
The cores of neutron stars harbor the highest matter densities known to occur in nature, up to several times the densities in atomic nuclei. Similarly, magnetic field strengths can…
Evolution of X-ray spectra and light curves of V1494 Aquilae
J. G. Rohrbach, J. -U. Ness, S. Starrfield
We present six Chandra X-ray spectra and light curves obtained for the nova V1494 Aql (1999 #2) in outburst. The first three observations were taken with ACIS-I on days 134, 187, a…
Swift X-ray and UV monitoring of the Classical Nova V458 Vul (Nova Vul 2007)
J. -U. Ness, J. J. Drake, A. P. Beardmore +18
We describe the highly variable X-ray and UV emission of V458 Vul (Nova Vul 2007), observed by Swift between 1 and 422 days after outburst. Initially bright only in the UV, V458 Vu…
Suzaku observation of the Phoenix Galaxy
G. Matt, S. Bianchi, H. Awaki +5
In recent years, several Seyfert 2 galaxies have been discovered that change state when observed in X-rays a few years apart, switching from Compton-thin to reflection-dominated or…
3C 33: another case of photoionized soft X-ray emission in radio galaxies
E. Torresi, P. Grandi, M. Guainazzi +3
All the observations available in the Chandra and XMM-Newton archives have been used to investigate the X-ray spectral properties of 3C 33. In this paper is presented a complete X-…
XMM-Newton and Suzaku analysis of the Fe K complex in the Seyfert 1 galaxy Mrk 509
G. Ponti, M. Cappi, C. Vignali +11
We report on partially overlapping XMM-Newton (~260 ks) and Suzaku (~100 ks) observations of the iron K band in the nearby, bright Seyfert 1 galaxy Mrk 509. The source shows a reso…