7 papers · 1 filter
Physical Conditions in Quasar Outflows: VLT Observations of QSO 2359-1241
Kirk Korista, Manuel Bautista, Nahum Arav +3
We analyze the physical conditions of the outflow seen in QSO 2359-1241 (NVSS J235953-124148), based on high resolution spectroscopic VLT observations. This object was previously s…
Atomic Processes in Planetary Nebulae and H II Regions
Manuel A. Bautista
Spectroscopic studies of Planetary Nebulae (PNe) and H {\sc ii} regions have driven much development in atomic physics. In the last few years the combination of a generation of pow…
Up-dated opacities from the Opacity Project
N. R. Badnell, M. A. Bautista, K. Butler +5
Using the code AUTOSTRUCTURE, extensive calculations of inner-shell atomic data have been made for the chemical elements He, C, N, O, Ne, Na, Mg, Al, Si, S, Ar, Ca, Cr, Mn, Fe and…
Photoionization Modeling and the K Lines of Iron
T. R. Kallman, P. Palmeri, M. A. Bautista +2
We calculate the efficiency of iron K line emission and iron K absorption in photoionized models using a new set of atomic data. These data are more comprehensive than those previo…
Dielectronic recombination data for dynamic finite-density plasmas I. Goals and methodology
N. R. Badnell, M. G. O'Mullane, H. P. Summers +7
A programme is outlined for the assembly of a comprehensive dielectronic recombination database within the generalized collisional--radiative (GCR) framework. It is valid for model…
Implementing TOPbase/Iron Project: Continuous Absorption from Fe II
Charles R. Cowley, Manuel Bautista
We discuss implementation of TOPbase and Iron Project opacities for stellar spectral codes. We use a technique employed by Peach, where a Boltzmann-averaged cross section is calcul…