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New Insights with XRISM & Cloudy: A novel Column Density Diagnostic

Autor: Gunasekera, Chamani M., van Hoof, Peter A. M., Tsujimoto, Masahiro, Ferland, Gary J.

We present a simple, yet powerful column density diagnostic for plasmas enabled by X-ray microcalorimeter observations. With the recent developments of the spectral simulation code Cloudy, inspired by the high spectral resolution of XRISM and Athena,

Externí odkaz: http://arxiv.org/abs/2411.15357

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The 23.01 release of Cloudy

Autor: Gunasekera, Chamani M., van Hoof, Peter A. M., Chatzikos, Marios, Ferland, Gary J.

We announce the C23.01 update of Cloudy. This corrects a simple coding error, present since $\sim$ 1990, in one routine that required a conversion from the line-center to the mean normalization of the Ly$\alpha$ optical depth. This affects the destru

Externí odkaz: http://arxiv.org/abs/2311.10163

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The 2023 release of Cloudy

Autor: Chatzikos, Marios, Bianchi, Stefano, Camilloni, Francesco, Chakraborty, Priyanka, Gunasekera, Chamani M., Guzmán, Francisco, Milby, Jonathan S., Sarkar, Arnab, Shaw, Gargi, van Hoof, Peter A. M., Ferland, Gary J.

We describe the 2023 release of the spectral synthesis code Cloudy. Since the previous major release, migrations of our online services motivated us to adopt git as our version control system. This change alone led us to adopt an annual release schem

Externí odkaz: http://arxiv.org/abs/2308.06396

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Akademický článek

The Effects of Dietary Supplementation of Astaxanthin and Β-caroten on the Reproductive Performance and Egg Quality of Female Goldfish (Carassius auratus)

Autor: Tizkar, B., Soudagar, M., Bahmani, M., Hosseini, S.A., Chamani, M.

Publikováno v: Caspian Journal of Environmental Sciences, Vol 11, Iss 2, Pp 217-231 (2013)

The present research was aimed to study the effects of different sources of carotenoids and their varying concentrations on the reproductive functions of goldfish. The study was carried out in seven treatments with three replicates at the Bony Fish

Externí odkaz: https://doaj.org/article/a1f8476e03154615a4dcf63f61c862fa

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Creating a CLOUDY Compatible Database with CHIANTI version 10 Data

Autor: Gunasekera, Chamani M., Chatzikos, Marios, Ferland, Gary J.

Publikováno v: Astronomy 2022, 1, 255-270

Atomic and molecular data are required to conduct detailed calculations of microphysical processes performed by CLOUDY to predict the spectra of a theoretical model. One of the three databases CLOUDY currently utilizes is CHIANTI version 7.1. CHIANTI

Externí odkaz: http://arxiv.org/abs/2209.11792

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Self-Consistent Grain Depletions and Abundances II: Effects on strong-line diagnostics of extragalactic H II regions

Autor: Gunasekera, Chamani M., Ji, Xihan, Chatzikos, Marios, Yan, Renbin, Ferland, Gary

The depletion of elements onto dust grains is characterized using a generalized depletion strength $F_*$ for any sightline, and trend-line parameters $A_X, B_X$ and $z_X$. The parameters $A_X, B_X$ and $z_X$ define the relative depletion pattern, for

Externí odkaz: http://arxiv.org/abs/2205.13023

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