37 citations · 131 across the 6 of their papers we have counts for
6 papers
Photoionization modelling of circumstellar nebulae using irregular grains
P. Jiménez-Hernández, S. J. Arthur, D. Guirado +4
We study the effects of using the optical properties of irregular hexahedral grains in photoionization models of circumstellar nebulae around evolved stars. Dust opacities for the…
Formation and X-ray emission from hot bubbles in planetary nebulae - III. The impact of [Wolf-Rayet]-type winds
Rogelio Orozco-Duarte, Jesús A. Toalá, S. Jane Arthur +3
We use radiation-hydrodynamical simulations to investigate the formation and synthetic X-ray emission of hot bubbles within planetary nebulae (PNe) driven by the powerful winds of…
On the X-ray temperature of hot gas in diffuse nebulae
J. A. Toalá, S. J. Arthur
X-ray emitting diffuse nebulae around hot stars are observed to have soft-band temperatures in the narrow range [1-3] K, independent of the stellar wind parameters an…
Turbulence in the Ionized Gas of the Orion Nebula
S. J. Arthur, S. -N. X. Medina, W. J. Henney
In order to study the nature, origin, and impact of turbulent velocity fluctuations in the ionized gas of the Orion Nebula, we apply a variety of statistical techniques to observed…
Expansion of hydrogen-poor knots in the born-again planetary nebulae A30 and A78
Xuan Fang, Martin A. Guerrero, Ramon A. Marquez-Lugo +8
We analyze the expansion of hydrogen-poor knots and filaments in the born-again planetary nebulae A30 and A78 based on Hubble Space Telescope (HST) images obtained almost 20 yr apa…
Turbulence in simulated HII regions
S. -N. X. Medina, S. J. Arthur, W. J. Henney +2
We investigate the scale dependence of fluctuations inside a realistic model of an evolving turbulent HII region and to what extent these may be studied observationally. We find th…