JWST/NIRCam imaging and Keck/MOSDEF spectroscopy identify COSMOS-74706 as an unlensed barred spiral galaxy at z_spec=3.159, with the bar confirmed via residuals, ellipse fitting, and Fourier modes.
The population of barred galaxies in the local universe
7 Pith papers cite this work, alongside 281 external citations. Polarity classification is still indexing.
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A new catalogue of bar lengths and widths from HST images of 8230 galaxies shows bars are about 13% weaker at higher redshift, with longer bars in higher-mass quiescent galaxies and trends consistent with slow quenching.
Bar pattern speeds anti-correlate with stellar and total dynamical mass in 30 galaxies, placing the slowest bars in the most massive systems and supporting angular momentum transfer to dark matter.
ELMA automates projected bar-length estimation from galaxy images via iterative elliptical isophote fitting that locates the semi-major axis at peak ellipticity.
Early kinematically persistent planes of satellite galaxies are fossil remnants of high-redshift anisotropic mass collapse along the principal directions of the local cosmic web during the fast assembly phase of host halos.
Strong bars correlate with massive red galaxies, boost central star formation in low-mass systems while quenching it in high-mass ones, and increase AGN incidence, supporting bar-driven gas inflow.
NGC 4264 hosts a fast bar with rotation rate R_cor/a_bar = 0.88 measured via the Tremaine-Weinberg method on MUSE data, indicating internal formation despite ongoing weak interaction.
citing papers explorer
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The Role of Baryonic and Dark Matter in Bar Kinematics
Bar pattern speeds anti-correlate with stellar and total dynamical mass in 30 galaxies, placing the slowest bars in the most massive systems and supporting angular momentum transfer to dark matter.
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Investigating the Effects of Bars on Star Formation and Nuclear Activity of Galaxies Using DESI Survey Data
Strong bars correlate with massive red galaxies, boost central star formation in low-mass systems while quenching it in high-mass ones, and increase AGN incidence, supporting bar-driven gas inflow.