The origin of the [CII]-deficit in a simulated dwarf galaxies starburst

We present [CII] synthetic observations of smoothed particle hydrodynamics (SPH) simulations of a dwarf galaxy merger. The merging process varies the star-formation rate by more than three orders of magnitude. Several star clusters are formed, the feedback of which disperses and unbinds the dense ga...

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Veröffentlicht in:	arXiv.org 2022-05
Hauptverfasser:	Bisbas, Thomas G, Walch, Stefanie, Naab, Thorsten, Lahén, Natalia, Herrera-Camus, Rodrigo, Steinwandel, Ulrich P, Fotopoulou, Constantina M, Chia-Yu, Hu, Johansson, Peter H
Format:	Artikel
Sprache:	eng
Schlagworte:	Dwarf galaxies Emission Explosions Far infrared radiation Galaxy mergers & collisions Luminosity Massive stars Physics - Astrophysics of Galaxies Simulation Smooth particle hydrodynamics Star clusters Star formation Stars & galaxies
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Beschreibung
Zusammenfassung:	We present [CII] synthetic observations of smoothed particle hydrodynamics (SPH) simulations of a dwarf galaxy merger. The merging process varies the star-formation rate by more than three orders of magnitude. Several star clusters are formed, the feedback of which disperses and unbinds the dense gas through expanding HII regions and supernova (SN) explosions. For galaxies with properties similar to the modelled ones, we find that the [CII] emission remains optically thin throughout the merging process. We identify the Warm Neutral Medium (\(3
ISSN:	2331-8422
DOI:	10.48550/arxiv.2205.08905