Gas and dust in the BCD galaxy VII Zw 403 (UGC 6456)
O. V. Egorov, T. A. Lozinskaya
TL;DR
This study refines metallicity estimates of ionized gas in the galaxy VII Zw 403 and explores the relationship between PAH distribution, hydrogen phases, and metallicity using spectroscopic and infrared data.
Contribution
It provides updated metallicity measurements and investigates correlations between PAH mass fraction, hydrogen distribution, and metallicity in a BCD galaxy.
Findings
Refined metallicity estimates of ionized gas complexes.
Identified potential correlations between PAH distribution and gas metallicity.
Analyzed the relationship between PAH mass fraction and hydrogen phases.
Abstract
Based on the results of the earlier spectroscopic observations with the 6-m BTA telescope of the SAO RAS we refine the metallicity estimates of the complexes of ionized gas in the VII Zw 403 galaxy. Infrared observations from the Spitzer Space Telescope are used to search for a possible correlation of the mass fraction distribution of the polycyclic aromatic hydrocarbons (PAH) with the distribution of ionized and neutral hydrogen, and with the metallicity of gas in the HII regions of the galaxy.
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