Distinguishing disks from mergers: Tracing the kinematic asymmetries in local (U)LIRGs using kinemetry-based criteria

2016/03/10 by Enrica Bellocchi, Santiago Arribas, Luis Colina
Physics and Astronomy · #Astronomy and Astrophysical Research #COSMIC cancer database #Galaxies: Formation, Evolution, Phenomena #Galaxy #Galaxy formation and evolution #Galaxy merger #Kinematics #Redshift #Star formation #Stellar, planetary, and galactic studies #Tracing #astro-ph.GA

paper · pdf · doi:10.1051/0004-6361/201526974

published as A&A 591, A85 (2016) · 17 pages, 7 figures, 4 tables

arxiv created 2016/03/10 · openalex publication_date 2016/04/21 · arxiv updated 2016/06/22 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Context. The kinematic characterization of different galaxy populations is a key observational input for distinguishing between different galaxy evolutionary scenarios because it helps to determine the number ratio of rotating disks to mergers at different cosmic epochs. Local (ultra) luminous infrared galaxies ((U)LIRGs) cover similar range of star formation rates (SFR) as normal high redshift (high-z), star-forming galaxies (SFGs). Therefore, their study offer a unique opportunity to study at high linear resolution and signal-to-noise (S/N) extreme star forming events and compare these events with those observed at high-z.

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