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The Impact of Pre-supernova Feedback and Its Dependence on Environment by Mcleod, Anna F.; Ali, Ahmad A.; Chevance, Mélanie; Della Bruna, Lorenza; Schruba, Andreas; Stevance, Heloise F.; Adamo, Angela; Kruijssen, J. M. Diederik; Longmore, Steven N.; Weisz, Daniel R.; Zeidler, Peter is a scholarly article available to read on EtoBox.

What is The Impact of Pre-supernova Feedback and Its Dependence on Environment about?

Integral field units enable resolved studies of a large number of star-forming regions across entire nearby galaxies, providing insight on the conversion of gas into stars and the feedback from the emerging stellar populations over unprecedented dynamic ranges in terms of spatial scale, star-forming region properties, and environments. We use the VLT/MUSE legacy data set covering the central $35$ arcmin$^{2}$ (${\sim}12$ kpc$^{2}$) of the nearby galaxy NGC 300 to quantify the effect of stellar feedback as a function of the local galactic environment. We extract spectra from emission line regions identified within dendrograms, combine emission line ratios and line widths to distinguish between HII regions, planetary nebulae, and supernova remnants, and compute their ionised gas properties, gas-phase oxygen abundances, and feedback-related pressure terms. For the HII regions, we find that the direct radiation pressure ($P_\mathrm{dir}$) and the pressure of the ionised gas ($P_{HII}$) weakly increase towards larger galactocentric radii, i.e. along the galaxy's (negative) abundance and (positive) extinction gradients. While the increase of $P_{HII}$ with galactocentric radius is likely

Author

Mcleod, Anna F.; Ali, Ahmad A.; Chevance, Mélanie; Della Bruna, Lorenza; Schruba, Andreas; Stevance, Heloise F.; Adamo, Angela; Kruijssen, J. M. Diederik; Longmore, Steven N.; Weisz, Daniel R.; Zeidler, Peter

Published

2021

Language

EN