13 CO 1–0 imaging of the Medusa merger, NGC 4194
2010; EDP Sciences; Volume: 522; Linguagem: Inglês
10.1051/0004-6361/200913511
ISSN1432-0746
AutoresS. Aalto, R. Beswick, E. Jütte,
Tópico(s)Stellar, planetary, and galactic studies
ResumoAims. Studying molecular gas properties in merging galaxies gives important clues to the onset and evolution of interaction-triggered starbursts. The line intensity ratio can be used as a tracer of how dynamics and star formation processes impact the gas properties. The Medusa merger (NGC 4194) is particularly interesting to study since its ratio rivals that of ultraluminous galaxies (ULIRGs), despite the comparatively modest luminosity, indicating an exceptionally high star formation efficiency (SFE) in the Medusa merger.
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