Publication
IPHAS extinction distances to planetary nebulae
Aims: The determination of reliable distances to planetary nebulae (PNe) is a major difficulty in the study of this class of objects in the Galaxy. The...
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PublicationIR observations of SGR 1806-20 during the November 1996 active periodFollowing the announcement of a new period of activity of the soft gamma-ray repeater SGR 1806-20 in 1996 November, we have performed follow-up observations of...
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PublicationIRAS 17423-1755: a massive post-AGB star evolving into the planetary nebula stage?IRAS 17423-1755 has been recognized as a new bipolar nebula during a multi-wavelength observational program of unidentified IRAS sources with far infrared...
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PublicationIRIS++ database: Merging of IRIS + Mark-1 + LOWLThe IRIS network has been operated continuously since July 1st 1989. To date, it has acquired more than a complete solar cycle of full-disk helioseismic data...
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PublicationIron abundance and dust in galactic H II regions.The [Fe II] and [Fe III] emission of seven galactic H II regions is studied with the aim of comparing their gaseous Fe abundance. The [Fe II] line intensity...
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PublicationIron abundance in H II regionsOptical CCD spectra are used to determine the element{Fe} abundances at several positions inside seven bright Galactic H Ii regions. The observed [Fe Iii] line...
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PublicationIs HCG 31 undergoing a merger or a fly-by interaction?We present Fabry-Perot and multi-object spectroscopy of the galaxies in Hickson compact group 31 (HCG 31). Based upon our Hα data cubes, galaxies A and C are a...
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PublicationIs the activity level of HD 80606 influenced by its eccentric planet?Aims: Several studies suggest that the activity level of a planet-host star can be influenced by the presence of a close-by orbiting planet. Moreover, the...
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PublicationIs there Na I in the atmosphere of HD 209458b?. Effect of the centre-to-limb variation and Rossiter-McLaughlin effect in transmission spectroscopy studiesHD 209458b was the first transiting planet discovered, and the first for which an atmosphere, in particular Na I, was detected. With time, it has become one of...