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Theoretically modelling photoionised regions with fractal geometry in three-dimension

Published online by Cambridge University Press:  04 June 2020

Yifei Jin Open the ORCID record for Yifei Jin [Opens in a new window] ,
Lisa Kewley  and
Ralph Sutherland
Yifei Jin
Affiliation:
Research School of Astronomy & Astrophysics, The Australian National University, Cotter Road, Weston Creek, 2611, ACT, Australia email: [email protected]
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Abstract

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Accurate predictions of the physics of interstellar medium (ISM) are vital for understanding galaxy formation and evolution. Modelling photoionized regions with complex geometry produces realistic ionization structures within the nebulae, providing the necessary physical predictions to interpret observational data. 3D photoionization codes built with Monte Carlo techniques provide powerful tools to produce the ionizing radiation field with fractal geometry. We present a high-resolution Monte Carlo modelling of a nebula with fractal geometry, and will further show how nebular geometry influences the emission-line behaviours. Our research has important implications for studies of emission-line ratios in high redshift galaxies.

Keywords

ISM: HII regionsgalaxies: ISMgalaxies: starburstgalaxies: high-redshift
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S352: Uncovering Early Galaxy Evolution in the ALMA and JWST Era , June 2019 , pp. 71 - 72
Copyright
© International Astronomical Union 2020

References

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