A link between solar events and congenital malformations: Is ionizing radiation enough to explain it? [PDF]
Journal of Geophysical Research: Space Physics 120.3, 1537-1542
(2015), 2015 Cosmic rays are known to cause biological effects directly and through ionizing radiation produced by their secondaries. These effects have been detected in airline crews and other specific cases where members of the population are exposed to above average secondary fluxes.
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Momentum transfer by an internal source of ionizing radiation - an important feedback process during galaxy formation ?! [PDF]
MNRAS 273 (1995) 249, 1994 The role of momentum transfer (``radiation pressure'') due to an internal source of ionizing radiation for the formation of baryonic structures is investigated. Fully-ionized self-gravitating gaseous objects can be radiation-pressure supported on a characteristic length scale $D_{\rm rp} \sim 100 \pc - 3 \kpc$.
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Ionizing Radiation in Smoothed Particle Hydrodynamics [PDF]
, 2000 A new method for the inclusion of ionizing radiation from uniform radiation fields into 3D Smoothed Particle Hydrodynamics (SPHI) simulations is presented. We calculate the optical depth for the Lyman continuum radiation from the source towards the SPHI particles by ray-tracing integration.
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Laser polarization control of ionization-injected electron beams and x-ray radiation in laser wakefield accelerators [PDF]
arXiv, 2023 In this paper we have studied the influence of the laser polarization on the dynamics of the ionization-injected electron beams and subsequently the properties of the emitted betatron radiation in laser wakefield accelerators (LWFAs). While ionizing by a strong field laser radiation, generated photo-electrons carry a residual transverse momentum in ...
arxiv
The effect of recombination radiation on the temperature and ionization state of partially ionized gas [PDF]
Mon.Not.Roy.Astron.Soc.437:2816,2013, 2013 A substantial fraction of all ionizing photons originate from radiative recombinations. However, in radiative transfer calculations this recombination radiation is often assumed to be absorbed 'on-the-spot' because for most methods the computational cost associated with the inclusion of gas elements as sources is prohibitive.
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Modeling UV Radiation Feedback from Massive Stars: III. Escape of Radiation from Star-forming Giant Molecular Clouds [PDF]
, 2019 Using a suite of radiation hydrodynamic simulations of star cluster formation in turbulent clouds, we study the escape fraction of ionizing (Lyman continuum) and non-ionizing (FUV) radiation for a wide range of cloud masses and sizes. The escape fraction increases as H II regions evolve and reaches unity within a few dynamical times.
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Statistics of Neutral Regions During Hydrogen Re-Ionization [PDF]
Astrophys.J. 580 (2002) L93-L96, 2002 We present predictions for two statistical measures of the hydrogen reionization process at high redshift. The first statistic is the number of neutral segments identified in spectra of high redshift QSOs as a function of their length. The second is the cross-correlation of neutral regions with possible sources of ionizing radiation.
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Self-ionizing galactic winds [PDF]
, 2022 We present hydrodynamical simulations of galactic winds from star-forming galaxies including non-equilibrium ionization and frequency-dependent radiative transfer, processes that have remained largely unaccounted for in galactic wind studies. We consider radiation from massive stars, the metagalactic UV/X-ray background, and the self-radiation of the ...
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The impact of stars stripped in binaries on the integrated spectra of stellar populations [PDF]
A&A 629, A134 (2019), 2019 Stars stripped of their envelopes from interaction with a binary companion emit a significant fraction of their radiation as ionizing photons. They are potentially important stellar sources of ionizing radiation, however, they are still often neglected in spectral synthesis simulations or simulations of stellar feedback.
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The impact of ionizing radiation on the formation of a supermassive star in the early Universe [PDF]
, 2016 A massive primordial halo near an intensely star-forming galaxy may collapse into a supermassive star (SMS) and leave a massive black hole seed of about $10^5~M_{\odot}$. To investigate the impact of ionizing radiation on the formation of an SMS from a nearby galaxy, we perform three-dimensional radiation hydrodynamical simulations by selecting a pair ...
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