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

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

Veselina Kalinova ,
Dario Colombo  and
Erik Rosolowsky
Veselina Kalinova
Affiliation:
Department of Physics 4-181 CCIS, University of Alberta, Edmonton AB T6G2E1, Canada email: veselina@ualberta.ca
Dario Colombo
Affiliation:
Department of Physics 4-181 CCIS, University of Alberta, Edmonton AB T6G2E1, Canada email: veselina@ualberta.ca
Erik Rosolowsky
Affiliation:
Department of Physics 4-181 CCIS, University of Alberta, Edmonton AB T6G2E1, Canada email: veselina@ualberta.ca
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Abstract

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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*/Mb=M*/(M*+MHI+MH2) 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 1011-1014M⊙.

Keywords

Galaxies: kinematics and dynamicsgalaxies: spiralsurveys
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , E39
Copyright
Copyright © International Astronomical Union 2016 

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