The DUVET Survey: Resolved Maps of Star Formation Driven Outflows in a Compact, Starbursting Disk Galaxy

We study star formation driven outflows in a \(z\sim0.02\) starbursting disk galaxy, IRAS08339+6517, using spatially resolved measurements from the Keck Cosmic Web Imager (KCWI). We develop a new method incorporating a multi-step process to determine whether an outflow should be fit in each spaxel,...

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Veröffentlicht in:arXiv.org 2022-02
Hauptverfasser: Bronwyn Reichardt Chu, Fisher, Deanne B, Nielsen, Nikole M, Chisholm, John, Girard, Marianne, Kacprzak, Glenn G, Bolatto, Alberto, Herrara-Camus, Rodrigo, Sandstrom, Karin, Li, Miao, Ryan Rickards Vaught, McPherson, Daniel K
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Sprache:eng
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Zusammenfassung:We study star formation driven outflows in a \(z\sim0.02\) starbursting disk galaxy, IRAS08339+6517, using spatially resolved measurements from the Keck Cosmic Web Imager (KCWI). We develop a new method incorporating a multi-step process to determine whether an outflow should be fit in each spaxel, and then subsequently decompose the emission line into multiple components. We detect outflows ranging in velocity, \(v_{\rm out}\), from \(100-600\) km s\(^{-1}\) across a range of star formation rate surface densities, \(\Sigma_{\rm SFR}\), from \(\sim\)0.01-10 M\(_\odot\) yr\(^{-1}\) kpc\(^{-2}\) in resolution elements of a few hundred parsec. Outflows are detected in \(\sim100\%\) of all spaxels within the half-light radius, and \(\sim70\%\) within \(r_{90}\), suggestive of a high covering fraction for this starbursting disk galaxy. Around \(2/3\) of the total outflowing mass originates from the star forming ring, which corresponds to \(
ISSN:2331-8422
DOI:10.48550/arxiv.2202.04672