311 citations · 409 across the 5 of their papers we have counts for
5 papers
Evidence for Atomic Absorption Features in the High Resolution X-ray Spectrum of the Neutron Star in Puppis A
John Groger, Frits Paerels, Slavko Bogdanov +5
We present evidence for atomic absorption lines in the high-resolution 4-30 A X-ray spectrum of the neutron star RX J0822-4300 in the supernova remnant Puppis A. Comparison with mo…
New insight on Young Stellar Objects accretion shocks -- a claim for NLTE opacities
Lionel de Sá, Jean-Pierre Chièze, Chantal Stehlé +3
Context. Accreted material onto CTTSs is expected to form a hot quasi-periodic plasma structure that radiates in X-rays. Simulations of this phenomenon only partly match with obser…
Non-LTE Model Atmospheres for Late-Type Stars I. A Collection of Atomic Data for Light Neutral and Singly-Ionized Atoms
C. Allende Prieto, D. L. Lambert, I. Hubeny +1
With the goal of producing a reliable set of model atoms and singly-ionized ions for use in building NLTE model atmospheres, we have combined measured energy levels, critically-com…
Quantitative Spectroscopy of O Stars at Low Metallicity. O Dwarfs in NGC 346
J. -C. Bouret, T. Lanz, D. J. Hillier +5
We present the results of a detailed UV and optical spectral analysis of the properties of 6 dwarf O-type stars in the SMC H II region NGC 346. Stellar parameters, chemical abundan…
Isolating Clusters with Wolf-Rayet Stars in I Zw 18
Thomas M. Brown, Sara R. Heap, Ivan Hubeny +2
We present UV images and spectra of the starburst galaxy I Zw 18, taken with the Space Telescope Imaging Spectrograph. The high spatial resolution of these data allows us to isolat…