We present the results of VLT-MUSE (Very Large Telescope-Multi Unit Spectroscopic Explorer) integral field spectroscopy of SECCO 1, a faint, star-forming...
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PublicationA very dark stellar system lost in Virgo: kinematics and metallicity of SECCO 1 with MUSE
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PublicationAbout Metallicity Variations in the Local Galactic Interstellar Medium
In this paper we discuss and confront recent results on metallicity variations in the local interstellar medium, obtained from observations of H II regions and...
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PublicationAbundance analysis of giant H II regions in M51
Spectrophotometric observations in the optical and near-infrared of six giant H II regions in the high metallicity spiral galaxy M51 are presented. Five of the...
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PublicationAbundance analysis of giant H II regions in nearby spirals.
Spectrophotometric data of giant H II regions covering the spectral range from λ3600 to 9700 Å in the spiral galaxies M101 and M51 have been analyzed in order...
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PublicationAbundance calibration and evolution of giant H II regions
This paper presents a self-consistent method to determine abundance and evolutionary status for giant H II regions (GHR) as well as the nominal temperature of...
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PublicationAn evolutionary sequence of expanding hydrogen shells in galaxy discs
Aims:Large HI shells, with diameters of hundreds of pc and expansion velocities of 10-20 km s-1 have been detected in their hundreds in the Milky Way and are...
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NewsAn old problem about the measurement of the chemical composition of the universe has been resolved
Research carried out by a scientific team from the University of Heidelberg (UH), the Instituto de Astrofísica de Canarias (IAC) and the National Autonomous...
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PublicationAre Temperature Fluctuations Out There?
The effect of temperature fluctuations in the spectra of ionized nebulae was firstly explored by Peimbert (1967). Since then, the problem of their existence has...
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PublicationBackscattering and Line Broadening in Orion
Examination of emission lines in high-velocity-resolution optical spectra of the Orion Nebula confirms that the velocity component on the red wing of the main...