We present results of photometry and photopolarimetry of the Wolf-Rayet eclipsing binary system HD 5980 in the Small Magellanic Cloud, which underwent an...
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PublicaciónPhotometric and Polarimetric Observations of the Wolf-Rayet Eclipsing Binary HD 5980 in the Small Magellanic Cloud
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PublicaciónSpatially resolved spectroscopy of WR ring nebulae. I - NGC 2359 and RCW 78
We report detailed spatially resolved spectroscopy of the WR nebulae NGC 2359 and RCW 78 surrounding the WN 5 HD 56925 and WN 8 HD 117688 stars. The aim of this...
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PublicaciónSpatially resolved spectroscopy of WR ring nebulae. II - M1-67
Detailed, high spatial resolution spectroscopy of the WR ring nebula M1-67 surrounding the WN 8 star WR 124 is presented. Abundances for 4 positions in M1-67...
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PublicaciónSpatially resolved spectroscopy of WR ring nebulae. III - New results and chemical properties of the sample
The paper presents detailed high-spatial-resolution spectroscopy of seven WR ring nebulae, observed at several telescopes in both hemispheres. These are Anon...
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PublicaciónSpectroscopy of ring nebulae around Wolf-Rayet stars in M33
We present high and low resolution spectroscopic observations for a sample of seven ring nebulae around Wolf-Rayet (WR) stars in M33: MC 27, MC 44, MC 46, MC 51...
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PublicaciónSupersonic turbulence in giant extragalactic HII regions
I discuss in this paper the more likely physical mechanisms that could provide the energy input for the supersonic motions observed in giant extragalactic HII...
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PublicaciónThe early nucleosynthesis of O and Fe
The new observational O/Fe vs Fe/H relationship in halo dwarfs is analyzed in terms of a model of chemical evolution for the solar neighborhood. The role of...
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PublicaciónThe fundamental parameters of the central stars of eight WR ring nebulae.
The authors describe work that has recently been completed on deriving the fundamental parameters of eight WR stars through the photoionization modelling of...
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PublicaciónViolent star formation in NGC 2363
We present narrowband H-alpha imaging and long-slit optical and near-infrared spectroscopy of the giant H II region NGC 2363. The spectroscopic data are taken...