Spectroscopic evidence of distinct stellar populations in the counter-rotating stellar disks of NGC 3593 and NGC 4550

  title={Spectroscopic evidence of distinct stellar populations in the counter-rotating stellar disks of NGC 3593 and NGC 4550},
  author={Lodovico Coccato and L. Morelli and Alessandro Pizzella and Enrico Maria Corsini and Lucio Maria Buson and European Southern Observatory and Karl-Schwarzschild-Strasse and Germany. Dipartimento di Fisica e AstronomiaG. Galilei and Universit̀a di Padova and Italy Inaf - Osservatorio Astronomico di Padova and Italy.},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
We present the results of integral-field spectroscopic observations of the two disk galaxies NGC 3593 and NGC 4550 obtained with VIMOS/VLT. Both galaxies are known to host 2 counter-rotating stellar disks, with the ionized gas co-rotating with one of them. We measured in each galaxy the ionized gas kinematics and metallicity, and the surface brightness, kinematics, mass surface density, and the stellar populations of the 2 stellar components to constrain the formation scenario of these peculiar… Expand

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