Low-frequency radio surveys are ideal for selecting orientation-independent samples of extragalactic sources because the sample members are selected by virtue...
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PublicationThe quasar fraction in low-frequency-selected complete samples and implications for unified schemes
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PublicationThe quasar MBH-Mhost relation through cosmic time - I. Data set and black hole masses
We study the relation as a function of cosmic time in a sample of 96 quasars from z = 3 to the present epoch. In this paper, we describe the sample, the data...
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PublicationThe quasar MBH-Mhost relation through cosmic time - II. Evidence for evolution from z = 3 to the present age
We study the dependence of the relation on the redshift up to z = 3 for a sample of 96 quasars, the host galaxy luminosities of which are known. Black hole...
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PublicationThe quiescent spectral energy distribution of V404 Cyg
We present a multiwavelength study of the black hole X-ray binary V404 Cyg in quiescence, focusing upon the spectral energy distribution (SED). Radio, optical...
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PublicationThe R136 star cluster dissected with Hubble Space Telescope/STIS - II. Physical properties of the most massive stars in R136
We present an optical analysis of 55 members of R136, the central cluster in the Tarantula Nebula of the Large Magellanic Cloud. Our sample was observed with...
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PublicationThe R136 star cluster dissected with Hubble Space Telescope/STIS. I. Far-ultraviolet spectroscopic census and the origin of He II λ1640 in young star clusters
We introduce a Hubble Space Telescope (HST)/Space Telescope Imaging Spectrograph (STIS) stellar census of R136a, the central ionizing star cluster of 30 Doradus...
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PublicationThe radial abundance gradient of chlorine in the Milky Way
We determine the radial abundance gradient of Cl in the Milky Way from H II regions spectra. For the first time, the Cl/H ratios are computed by simply adding...
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PublicationThe radial abundance gradient of oxygen towards the Galactic anti-centre
We present deep optical spectroscopy of eight H II regions located in the anti-centre of the Milky Way. The spectra were obtained at the 10.4 m GTC and 8.2 m...
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PublicationThe radial velocity dispersion profile of the Galactic halo: constraining the density profile of the dark halo of the Milky Way
We have compiled a new sample of 240 halo objects with accurate distance and radial velocity measurements, including globular clusters, satellite galaxies...