114 citations · 355 across the 10 of their papers we have counts for
10 papers
PROJECT-J: JWST observations of HH46~IRS and its outflow. Overview and first results
B. Nisini, M. G. Navarro, T. Giannini +23
We present the first results of the JWST program PROJECT-J (PROtostellar JEts Cradle Tested with JWST ), designed to study the Class I source HH46 IRS and its outflow through NIRSp…
The Problem of the High Iron Abundance in Accretion Disks around Black Holes
J. A. García, T. R. Kallman, M. Bautista +4
In most accreting black-hole systems the copious X-rays commonly observed from the inner-most regions are accompanied by a reflection spectrum. The latter is the signature of energ…
K-shell photoabsorption and photoionization of trace elements. II. Isoelectronic sequences with electron number
C. Mendoza, M. A. Bautista, P. Palmeri +3
We are concerned with improving the diagnostic potential of the K lines and edges of elements with low cosmic abundances that are observed in the X-ray spectra of supernova remnant…
Discovery of Rubidium, Cadmium, and Germanium Emission Lines in the Near-Infrared Spectra of Planetary Nebulae
N. C. Sterling, Harriet L. Dinerstein, Kyle F. Kaplan +1
We identify [Rb IV] 1.5973 and [Cd IV] 1.7204 micron emission lines in high-resolution (R=40,000) near-infrared spectra of the planetary nebulae (PNe) NGC 7027 and IC 5117, obtaine…
A Comprehensive X-ray Absorption Model for Atomic Oxygen
T. W. Gorczyca, M. A. Bautista, M. F. Hasoglu +9
An analytical formula is developed to represent accurately the photoabsorption cross section of O I for all energies of interest in X-ray spectral modeling. In the vicinity of the…
Time-dependent Photoionization of Gaseous Nebulae: the Pure Hydrogen Case
J. García, E. E. Elhoussieny, M. A. Bautista +1
We study the problem of time-dependent photoionization of low density gaseous nebulae subjected to sudden changes in the intensity of ionizing radiation. To this end, we write a co…
Photoionization modeling of oxygen K absorption in the interstellar medium:the Chandra grating spectra of XTE J1817-330
E. Gatuzz, J. García, C. Mendoza +6
We present detailed analyses of oxygen K absorption in the interstellar medium (ISM) using four high-resolution Chandra spectra towards the X-ray low-mass binary XTE J1817-330. The…
Nitrogen K-shell photoabsorption
J. Garcia, T. R. Kallman, M. Witthoeft +6
Reliable atomic data have been computed for the spectral modeling of the nitrogen K lines, which may lead to useful astrophysical diagnostics. Data sets comprise valence and K-vaca…
Spectrum Synthesis Modeling of the X-ray Spectrum of GRO J1655-40 Taken During the 2005 Outburst
T. R. Kallman, M. A. Bautista, Stephane Goriely +5
The spectrum from the black hole X-ray transient GRO J1655-40. obtained using the High Energy Transmission Grating (HETG) in 2005 is notable as a laboratory for the study…
Improved Neutron-Capture Element Abundances in Planetary Nebulae
N. C. Sterling, H. L. Dinerstein, S. Hwang +11
Spectroscopy of planetary nebulae (PNe) provides the means to investigate s-process enrichments of neutron(n)-capture elements that cannot be detected in asymptotic giant branch (A…