21 citations · 39 across the 5 of their papers we have counts for
5 papers
Analysis of nuclear activity of ten polar ring galaxies
P. Freitas-Lemes, I. Rodrigues, O. L. Dors +1
The accumulation of mass from the interaction process that forms the polar ring galaxies is a factor that favors the conditions necessary to trigger nonthermal nuclear activities..…
Study of the Kelvin-Helmholtz instability through simulation with the code Athena
P. Freitas-Lemes, I. Rodrigues, M. Faúndez-Abans
Kelvin-Helmholtz instabilities are common in astrophysical systems, ranging from jet black holes up to protoplanetary accretion disk. An astrophysical object with strong characteri…
Imagery and long-slit spectroscopy of the Polar-Ring Galaxy AM2020-504
P. Freitas-Lemes, I. Rodrigues, M. Faúndez-Abans +2
Interactions between galaxies are very common. There are special kinds of interactions that produce systems called Polar Ring Galaxies (PRGs), composed by a lenticular, elliptical,…
ESO 603-G21: A strange polar-ring galaxy
V. P. Reshetnikov, M. Faundez-Abans, M. de Oliveira-Abans
We present the results of B, V, R surface photometry of ESO603-G21 - a galaxy with a possible polar ring. The morphological and photometric features of this galaxy are discussed. T…
Nuclear spectra of polar-ring galaxies
V. P. Reshetnikov, M. Faundez-Abans, M. de Oliveira-Abans
We report the results of spectroscopic observations of 8 southern polar-ring galaxies (PRGs), in the wavelength range 5900-7300 Å. We fing that 5 out of 8 galaxies contain LINERs o…