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93 papers · 1 filter
Near-IR spectroscopy of asteroids 21 Lutetia, 89 Julia, 140 Siwa, 2181 Fogelin, and 5480 (1989YK8), potential targets for the Rosetta mission; remote observations campaign on IRTF
Mirel Birlan, Schelte J. Bus, Irina Belskaya +5
In the frame of the international campaign to observe potential target asteroids for the Rosetta mission, remote observations have been carried out between Observatoire de Paris, i…
Can a "standard" Initial Mass Function explain the metal enrichment in clusters of galaxies?
L. Portinari, A. Moretti, C. Chiosi +1
It is frequently debated in literature whether a "standard" Initial Mass Function (IMF) - meaning an IMF of the kind usually adopted to explain the chemical evolution in the local…
The 3-D ionization structure and evolution of NGC 7009 (Saturn Nebula)
F. Sabbadin, M. Turatto, E. Cappellaro +2
Tomographic and 3-D analyses for extended, emission-line objects are applied to long-slit ESO NTT + EMMI high-resolution spectra of the intriguing planetary nebula NGC 7009, covere…
High-frequency polarization properties of southern Kuhr sources
R. Ricci, I. Prandoni, C. Gruppioni +2
We have carried out observations at 18.5 GHz with the Australia Telescope Compact Array (ATCA) of 250 out of the 258 Southern extragalactic sources in the complete 5 GHz 1 Jy sampl…
The cosmic evolution of quasar host galaxies
R. Falomo, J. K. Kotilainen, C. Pagani +2
We present near-infrared imaging of the host galaxies of 17 quasars in the redshift range 1 < z < 2, carried out at the ESO VLT UT1 8m telescope under excellent seeing conditions (…
Automated Determination of Stellar Population Parameters in Galaxies Using Active Instance-based Learning
Thamar Solorio, Olac Fuentes, Roberto Terlevich +2
In this work we focus on the determination of the relative distributions of young, intermediate-age and old populations of stars in galaxies. Starting from a grid of theoretical po…