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arXiv · 1510.04735

Bridging Galaxy Dynamics and Baryon Efficiency of 40 EDGE-CALIFA galaxies

Veselina Kalinova·Dario Colombo·Erik Rosolowsky·the EDGE-CALIFA collaboration
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Abstract

We apply the Jeans Axisymmetric Multi-Gaussian Expansion method to the stellar kinematic maps of 40 Sa-Sd EDGE-CALIFA galaxies and derive their circular velocity curves (CVCs). The CVCs are classified using the Dynamical Classification method developed in Kalinova et al. (2015) . We also calculate the observational baryon efficiency, OBE, where $M_*/M_b=M_*/(M_*+M_{HI}+M_{H_2})$ of the galaxies using their stellar mass, total neutral hydrogen mass and total molecular gas from CO luminosities. Slow-rising, Flat and Round-peaked CVC types correspond to specific OBEs, stellar and dark matter (DM) halo mass values, while the Sharp-peaked CVCs span in the whole DM halo mass range of $10^{11}-10^{14} M_{\odot}$.

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Veselina Kalinova, Dario Colombo, Erik Rosolowsky, the EDGE-CALIFA collaboration. 2015-10-15. Bridging Galaxy Dynamics and Baryon Efficiency of 40 EDGE-CALIFA galaxies. https://doi.org/10.1017/s1743921316008000

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