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The filamentary multi-polar planetary nebula NGC5189
(2012)
We present a set of optical and infrared images combined with long-slit, medium and high dispersion spectra of the southern planetary nebula (PN) NGC5189. The complex morphology of this PN is puzzling and has not been ...
The filamentary multi-polar planetary nebula NGC5189
(2012)
We present a set of optical and infrared images combined with long-slit, medium and high dispersion spectra of the southern planetary nebula (PN) NGC5189. The complex morphology of this PN is puzzling and has not been ...
How much dark matter is there inside early-type galaxies?
(2014)
We study the luminous mass as a function of the dynamical mass inside the effective radius (re) of early-type galaxies (ETGs) to search for differences between these masses. We assume Newtonian dynamics and that any ...
The emergence of a neutral Herbig-Haro jet into a photoionized nebula
(2000)
Recent observations show the existence of an increasing number of collimated outflows ejected by young, low-mass stars which are embedded in H II regions. At distances of a few tens of au from the star, at least one lobe ...
The emergence of a neutral Herbig-Haro jet into a photoionized nebula
(2000)
Recent observations show the existence of an increasing number of collimated outflows ejected by young, low-mass stars which are embedded in H II regions. At distances of a few tens of au from the star, at least one lobe ...
The composite form of the supernova remnant 3C 400.2: Two interacting supernova remnants or a single supernova remnant with a blow-out?
(2006)
3C 400.2 is a galactic supernova remnant with a complex morphology consisting of two overlapping shells of different diameters: a large shell to the southeastern side and a small shell to the northwestern side. In order ...
Nocturna astronomía
(Universidad Veracruzana, 1959)
The composite form of the supernova remnant 3C 400.2: Two interacting supernova remnants or a single supernova remnant with a blow-out?
(2006)
3C 400.2 is a galactic supernova remnant with a complex morphology consisting of two overlapping shells of different diameters: a large shell to the southeastern side and a small shell to the northwestern side. In order ...
O caso Plutão: uma análise das potencialidades do uso de textos não didáticos no ensino de astronomia
(Universidad de Vigo, 2012)
A formação de leitores críticos, que percebam os múltiplos sentidos ideológicos e interpretações dados a um mesmo tema em diferentes meios, tornou-se essencial com o crescimento da circulação de informações. A inserção de ...