We discuss five blue stellar systems in the direction of the Virgo cluster, analogous to the enigmatic object SECCO 1 (AGC 226067). These objects were...
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PublicationYoung, Blue, and Isolated Stellar Systems in the Virgo Cluster. II. A New Class of Stellar System
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PublicationYoung, metal-enriched cores in early-type dwarf galaxies in the Virgo cluster based on colour gradients
Early-type dwarf galaxies are not simply featureless, old objects, but were found to be much more diverse, hosting substructures and a variety of stellar...
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Publicationz-GAL: A NOEMA spectroscopic redshift survey of bright Herschel galaxies. I. Overview
Using the IRAM NOrthern Extended Millimetre Array (NOEMA), we conducted a Large Programme (z-GAL) to measure redshifts for 126 bright galaxies detected in the...
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Publicationz-GAL: A NOEMA spectroscopic redshift survey of bright Herschel galaxies. I. Overview (Corrigendum)
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Publicationz-GAL: A NOEMA spectroscopic redshift survey of bright Herschel galaxies. II. Dust properties
We present the dust properties of 125 bright Herschel galaxies selected from the z-GAL NOEMA spectroscopic redshift survey. All the galaxies have precise...
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Publicationz-GAL: A NOEMA spectroscopic redshift survey of bright Herschel galaxies. III. Physical properties
The z-GAL survey observed 137 bright Herschel-selected targets with the IRAM Northern Extended Millimeter Array, with the aim to measure their redshift and...
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PublicationZeeman effect in sulfur monoxide. A tool to probe magnetic fields in star forming regions
Context. Magnetic fields play a fundamental role in star formation processes and the best method to evaluate their intensity is to measure the Zeeman effect of...
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PublicationZero-Field Dichroism in the Solar Chromosphere
We explain the linear polarization of the Ca ii infrared triplet observed close to the edge of the solar disk. In particular, we demonstrate that the physical...
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PublicationZero-metallicity Hypernova Uncovered by an Ultra-metal-poor Star in the Sculptor Dwarf Spheroidal Galaxy
Although true metal-free "Population III" stars have so far escaped discovery, their nature, and that of their supernovae, is revealed in the chemical products...