Effect of Chloramine-T on Single Sodium Channels in Neuroblastoma Cells

Iliev, Ilko G.; Nagy, K.

doi:10.1007/978-1-4615-9507-6_32

Cited by 1 publication

(13 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At the highest redshifts sampled, however, our results fall in between the two fitting formula. This is in qualitative agreement with recent measurements from Reed et al (2005), and Heitmann et al (2006), although our mass function appears systematically higher than that of Iliev et al (2005). The figure shows that the abundance of our lowest mass halos is systematically below theoretical expectations, likely a consequence of our limited mass resolution.…”

Section: N-body Simulationssupporting

confidence: 93%

“…Our work has overlap with the recent simulation and analysis of Iliev et al (2005). In comparison to these authors, reionization finishes significantly later in our simulation, near z ∼ 6.5, as compared to z ∼ 12, a consequence of our more conservative prescription for the ionizing sources.…”

Section: Introductionsupporting

confidence: 66%

“…Detailed theoretical modeling (see e.g. Gnedin 2000;Razoumov et al 2002;Sokasian et al 2002;Sokasian et al 2001;Furlanetto et al 2004b,a;Kohler et al 2005;Iliev et al 2005;Mellema et al 2006) is, however, required to constrain the topology of reionization from current and future observations. In particular, it is subtle to infer quantities like the volume filling factor and size distribution of ionized regions, the correlation between ionized regions and large-scale over-density (i.e., does reionization proceed outside-in or inside-out), and the nature of the ionizing sources, from observations.…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, most calculations have been performed in prohibitively small simulation boxes, or been entirely analytic (e.g. Furlanetto et al 2004a, hereafter FZH04), although there has been very recent progress towards large volume reionization simulations (Kohler et al 2005;Iliev et al 2005). Indeed a skeptic might posit that, given the difficulty of simulating reionization, we will observe the 21 cm signal before we can predict it.…”

Section: Introductionmentioning

confidence: 99%

“…Our work represents progress on several fronts. First, we simulate reionization in a larger volume than most previous works (although see Kohler et al 2005;Iliev et al 2005), while maintaining high mass resolution. This allows us to reliably calculate the size distribution of HII regions as well as power spectra of ionization and 21 cm fields, impossible with previous small volume simulations.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Simulations and Analytic Calculations of Bubble Growth during Hydrogen Reionization

Zahn

Lidz

McQuinn

et al. 2007

ApJ

353

612

View full text Add to dashboard Cite

We present results from a large volume simulation of Hydrogen reionization. We combine 3d radiative transfer calculations and an N-body simulation, describing structure formation in the intergalactic medium (IGM), to detail the growth of HII regions around high redshift galaxies. Our N-body simulation tracks 1024 3 dark matter particles, in a cubical box of co-moving side length L box = 65.6 Mpc h −1 . This large volume allows us to accurately characterize the size distribution of HII regions throughout most of the reionization process. At the same time, our simulation resolves many of the small galaxies likely responsible for reionization. It confirms a picture anticipated by analytic models: HII regions grow collectively around highly-clustered sources, and have a well-defined characteristic size, which evolves from a sub-Mpc scale at the beginning of reionization to R 10 co-moving Mpc towards the end. We show that in order to obtain this qualitative picture, source resolution must not be sacrificed at too great a level. We present a detailed statistical description of our results, and compare them with a numerical hybrid scheme based on the analytic model by Furlanetto, Zaldarriaga, and Hernquist. This model associates HII regions with large-scale overdensities and is based on the excursion set formalism. We find that the analytic calculation reproduces the size distribution of HII regions, the power spectrum of the ionization field, and the 21 cm power spectrum of the full radiative transfer simulation remarkably well. The ionization field from the radiative transfer simulation, however, has more small scale structure than the analytic calculation, owing to Poisson scatter in the simulated abundance of galaxies on small scales. We propose and validate a simple scheme to incorporate this scatter into our calculations. Our results suggest that analytic calculations are sufficiently accurate to aid in predicting and interpreting the results of future 21 cm surveys. In particular, our fast numerical scheme is useful for forecasting constraints from future 21 cm surveys, and in constructing mock surveys to test data analysis procedures. Subject headings: cosmology: theory -intergalactic medium -large scale structure of universe

show abstract

Section: N-body Simulationssupporting

confidence: 93%

Section: Introductionsupporting

confidence: 66%