An Extreme Metallicity, Large-Scale Outflow from a Star-Forming Galaxy at z ~ 0.4
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...Ionic column density ratios and line profiles sometimes support a common photoionized origin for O vi, N v, and low-ion gas (e.g. Muzahid et al. 2015), while other systems require O vi to be collisionally ionized in a ∼105.5 K plasma (e.g. Tumlinson et al. 2005; Fox et al. 2009; Tripp et al. 2011;…...
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...…and absorption-line profiles, sometimes support a similar, photoionized origin for Ovi, Nv, and low-ionization state gas (e.g. Tripp et al. 2008; Muzahid et al. 2015), and sometimes require Ovi to be ionized by collisions of electrons with ions in a ∼105.5 K plasma (e.g. Tumlinson et al. 2005;…...
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...…QSO spectra that trace low-density foreground gas in the IGM and galaxy halos (Richter et al. 2004; Sembach et al. 2004; Tripp et al. 2006, 2008; Howk et al. 2009; Narayanan et al. 2010, 2011; Savage et al. 2011; Narayanan et al. 2012; Savage et al. 2014; Muzahid et al. 2015; Pachat et al. 2016)....
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171 citations
References
10,983 citations
"An Extreme Metallicity, Large-Scale..." refers methods in this paper
...Galaxy apparent Vega-magnitudes were determined using 1.5σ isophotes from Source Extractor (Bertin & Arnouts 1996)....
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...The observed OIII /Hβ and NII/Hα emission line ratios (i.e. −0.323 and−0.391 dex respectively) suggest that while most of the emission is due to star formation, some AGN contamination could also be present (Baldwin et al. 1981)....
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...Such mechanical and chemical feedback is essential to regulate star-formation rates (SFRs) and stellar masses (M∗) in theoretical models (Springel & Hernquist 2003; Davé et al. 2011b)....
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...…medium (IGM) to the interstellar medium (ISM) and large-scale galactic outflows are the two principal components of current theoretical models of galaxy formation and evolution (Springel & Hernquist 2003; Kereš et al. 2005; Dekel et al. 2009; Oppenheimer et al. 2010; Davé et al. 2011a,b, 2012)....
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