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NGC 1399: a complex dynamical case
N. R. Napolitano, M. Arnaboldi, M. Capaccioli
Evidence for a disturbed velocity structure in the outer regions of the galaxy NGC1399 comes from a re-analysis of the planetary nebulae data from Arnaboldi et al. (1994). We find…
Intracluster Planetary Nebulae in Virgo: Photometric selection, spectroscopic validation and cluster depth
M. Arnaboldi, J. A. L. Aguerri, N. R. Napolitano +6
We have imaged an empty area of 34'x34' one and a half degree north of the Virgo cluster core to survey for intracluster planetary nebula candidates. We have implemented and tested…
Planetary nebulae as mass tracers of their parent galaxies: biases in the estimate of the kinematical quantities
Nicola R. Napolitano, Magda Arnaboldi, Kenneth C. Freeman +1
Multi-object and multi-fiber spectrographs on 4 and 8 meter telescopes make it possible to use extragalactic planetary nebulae (PNe) in the outer halos of early-type galaxies as ki…
Detection, photometry and slitless radial velocities of 535 planetary nebulae in the flattened elliptical galaxy NGC 4697
R. H. Mendez, A. Riffeser, R. P. Kudritzki +5
We have detected 535 planetary nebulae (PNs) in NGC 4697, using the classic on-band, off-band filter technique with the Focal Reducer and Spectrograph (FORS) at the Cassegrain focu…