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Emission-line Diagnostics of Nearby HII Regions Including Supernova Hosts

Published online by Cambridge University Press:  28 July 2017

Lin Xiao ,
J. J. Eldridge ,
Elizabeth Stanway  and
L. Galbany Open the ORCID record for L. Galbany [Opens in a new window]
Lin Xiao
Affiliation:
Department of Physics, University of Auckland, NZ email: [email protected]
J. J. Eldridge
Affiliation:
Department of Physics, University of Auckland, NZ email: [email protected]
Elizabeth Stanway
Affiliation:
Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK email: [email protected]
L. Galbany
Affiliation:
PITT PACC, Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260, USA email: [email protected]
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Abstract

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We present a new model of the optical nebular emission from HII regions by combining the results of the Binary Population and Spectral Synthesis (bpass) code with the photoionization code cloudy (Ferland et al. 1998). We explore a variety of emission-line diagnostics of these star-forming HII regions and examine the effects of metallicity and interacting binary evolution on the nebula emission-line production. We compare the line emission properties of HII regions with model stellar populations, and provide new constraints on their stellar populations and supernova progenitors. We find that models including massive binary stars can successfully match all the observational constraints and provide reasonable age and mass estimation of the HII regions and supernova progenitors.

Keywords

Binaries: generalHII regionsSupernovae: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S329: The Lives and Death-Throes of Massive Stars , November 2016 , pp. 49 - 53
Copyright
Copyright © International Astronomical Union 2017 

References

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