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Atomic lines in infrared spectra for ultracool dwarfs
Yu. Lyubchik, H. R. A. Jones, Ya. V. Pavlenko +3
We provide a set of atomic lines which are suitable for the description of ultracool dwarf spectra from 10000 to 25000 Å. This atomic linelist was made using both synthetic spectra…
On the importance of inner-shell transitions for opacity calculations
N. R. Badnell, M. J. Seaton
For high temperatures and densities, stellar opacities obtained from the Opacity Project (OP) were smaller than those obtained from the OPAL project. Iglesias and Rogers [Ap.J. v44…
The optical to soft X-ray spectrum of the ultrasoft broad-line AGN RE J2248-511
R. L. C. Starling, E. M. Puchnarewicz, E. Romero-Colmenero +1
We present a series of monitoring observations of the ultrasoft broad-line AGN RE J2248-511 with XMM-Newton. Previous X-ray observations showed a transition from a very soft state…
Temperature determination via STJ optical spectroscopy
A. P. Reynolds, J. H. J. de Bruijne, M. A. C. Perryman +2
ESA's Superconducting Tunnel Junction (STJ) optical photon-counting camera (S-Cam2) incorporates an array of pixels with intrinsic energy sensitivity. Using the spectral fitting te…
An XMM-Newton observation of the Narrow Line Seyfert 1 Galaxy, Markarian 896
K. L. Page, P. T. O'Brien, J. N. Reeves +1
XMM-Newton observations of the NLS1 Markarian 896 are presented. Over the 2-10 keV band, an iron emission line, close to 6.4 keV, is seen. The line is just resolved and has an equi…