SDSS IV MaNGA – spatially resolved diagnostic diagrams: a proof that many galaxies are LIERs

@article{Belfiore2016SDSSIM,
  title={SDSS IV MaNGA – spatially resolved diagnostic diagrams: a proof that many galaxies are LIERs},
  author={F. Belfiore and R. Maiolino and C. Maraston and E. Emsellem and M. Bershady and K. Masters and R. Yan and D. Bizyaev and M. Boquien and J. Brownstein and K. Bundy and N. Drory and T. Heckman and D. Law and A. Roman-Lopes and K. Pan and L. Stanghellini and D. Thomas and A. Weijmans and K. Westfall},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2016},
  volume={461},
  pages={3111-3134}
}
We study the spatially resolved excitation properties of the ionised gas in a sample of 646 galaxies using integral field spectroscopy data from SDSS-IV MaNGA. Making use of Baldwin-Philips-Terlevich diagnostic diagrams we demonstrate the ubiquitous presence of extended (kpc scale) low ionisation emission-line regions (LIERs) in both star forming and quiescent galaxies. In star forming galaxies LIER emission can be associated with diffuse ionised gas, most evident as extra-planar emission in… Expand
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