47 citations · 251 across the 11 of their papers we have counts for
11 papers
Planetary nebulae: the universal mass-metallicity relation for Local Group dwarf galaxies and the chemistry of NGC 205
D. R. Gonçalves, Laura Magrini, Ana M. Teodorescu +1
Here we study 16 planetary nebulae (PNe) in the dwarf irregular galaxy NGC 205 by using GMOS@Gemini spectra to derive their physical and chemical parameters. The chemical patterns…
A kinematic study of planetary nebulae in the dwarf irregular galaxy IC10
Denise R. Gonçalves, Ana M. Teodorescu, Alan Alves-Brito +2
We present positions, kinematics, and the planetary nebula luminosity function (PNLF) for 35 planetary nebulae (PNe) in the nearest starburst galaxy IC10 extending out to 3kpc from…
The ionization mechanism of NGC 185: how to fake a Seyfert galaxy?
Lucimara Martins, Gustavo Lanfranchi, Denise R. Goncalves +3
NGC 185 is a dwarf spheroidal satellite of the Andromeda galaxy. From mid-1990s onwards it was revealed that dwarf spheroidals often display a varied and in some cases complex star…
Deep spectroscopy of the emission-line populations in NGC185
Denise R. Goncalves, Laura Magrini, Lucimara P. Martins +2
Dwarf galaxies are crucial to understand the formation and evolution of galaxies, since they constitute the most abundant galaxy population. Abundance ratios and their variations d…
Using NMAGIC to probe the dark matter halo and orbital structure of the X-ray bright, massive elliptical galaxy, NGC 4649
Payel Das, Ortwin Gerhard, Roberto H. Mendez +2
We create dynamical models of the massive elliptical galaxy, NGC 4649, using the N-body made-to-measure code, NMAGIC, and kinematic constraints from long-slit and planetary nebula…
Planetary nebulae in the elliptical galaxy NGC 4649 (M 60): kinematics and distance redetermination
A. M. Teodorescu, R. H. Mendez, F. Bernardi +3
Using a slitless spectroscopy method with (a) the 8.2 m Subaru telescope and its FOCAS Cassegrain spectrograph, and (b) the ESO Very Large Telescope (VLT) unit 1 (Antu) and its FOR…