English

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

Astrophysics of Galaxies 2017-01-11 v2 Cosmology and Nongalactic Astrophysics

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/Mb=M/(M+MHI+MH2)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 10111014M10^{11}-10^{14} M_{\odot}.

Keywords

Cite

@article{arxiv.1510.04735,
  title  = {Bridging Galaxy Dynamics and Baryon Efficiency of 40 EDGE-CALIFA galaxies},
  author = {Veselina Kalinova and Dario Colombo and Erik Rosolowsky and the EDGE-CALIFA collaboration},
  journal= {arXiv preprint arXiv:1510.04735},
  year   = {2017}
}

Comments

2 pages, 1 figure, Proceedings IAU Symposium No. 315, 2015