Understanding galaxy evolution through emission lines

LJ Kewley, DC Nicholls… - Annual Review of …, 2019 - annualreviews.org
We review the use of emission lines for understanding galaxy evolution, focusing on
excitation source, metallicity, ionization parameter, ISM pressure, and electron density. We …

Ultraluminous X-ray sources in the Chandra and XMM-Newton era

H Feng, R Soria - New Astronomy Reviews, 2011 - Elsevier
Ultraluminous X-ray sources (ULXs) are accreting black holes that may contain the missing
population of intermediate mass black holes or reflect super-Eddington accretion physics …

CLOUDY 90: numerical simulation of plasmas and their spectra

GJ Ferland, KT Korista, DA Verner… - Publications of the …, 1998 - iopscience.iop.org
ABSTRACT CLOUDY is a large‐scale spectral synthesis code designed to simulate fully
physical conditions within an astronomical plasma and then predict the emitted spectrum …

Dynamics of line-driven disk winds in active galactic nuclei

D Proga, JM Stone, TR Kallman - The Astrophysical Journal, 2000 - iopscience.iop.org
We present the results of axisymmetric time-dependent hydrodynamic calculations of line-
driven winds from accretion disks in active galactic nuclei (AGNs). We assume the disk is …

Spectral properties of accretion disks around galactic and extragalactic black holes

SK Chakrabarti, LG Titarchuk - arxiv preprint astro-ph/9510005, 1995 - arxiv.org
We study the spectral properties of a very general class of accretion disks which can be
decomposed into three distinct components apart from a shock at $ r= r_s $:(1) An optically …

Photoionization and high-density gas

T Kallman, M Bautista - The Astrophysical Journal Supplement …, 2001 - iopscience.iop.org
We present results of calculations using the XSTAR version 2 computer code. This code is
loosely based on the XSTAR version 1 code, which has been available for public use for …

A high-velocity ionized outflow and XUV photosphere in the narrow emission line quasar PG1211+ 143

KA Pounds, JN Reeves, AR King… - Monthly Notices of …, 2003 - academic.oup.com
We report on the analysis of a∼ 60-ks XMM–Newton observation of the bright, narrow
emission line quasar PG1211+ 143. Absorption lines are seen in both European Photon …

Ultraviolet variability of NGC 5548-Dynamics of the continuum production region and geometry of the broad-line region

JH Krolik, K Horne, TR Kallman… - … Journal, Part 1 …, 1991 - adsabs.harvard.edu
We used the data obtained in the 1989-1990 IUE monitoring of NGC 5548 to derive a mean
shape for the ionizing spectrum; mean line profiles; the continuum fluctuation power …

[HTML][HTML] X-ray emission from thin plasmas. I-Multiple Auger ionisation and fluorescence processes for Be to Zn

JS Kaastra, R Mewe - … Series (ISSN 0365-0138), vol. 97, no. 2 …, 1993 - adsabs.harvard.edu
The basic physical processes responsible for X-ray emission from thin plasmas are
considered. Collisional ionization or photoionization of inner shells of neutral atoms and …

Gravitationally redshifted absorption lines in the X-ray burst spectra of a neutron star

J Cottam, F Paerels, M Mendez - Nature, 2002 - nature.com
The fundamental properties of neutron stars provide a direct test of the equation of state of
cold nuclear matter, a relationship between pressure and density that is determined by the …