The multiple system HR8799 was the first multiple system discovered using direct imaging. In addition, this system has a debris disk with two rings, the central...
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CharlaMass, age and metallicity of the central star of the multiple system HR8799
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CharlaMass, metallicity and SFR relationships in star forming galaxies using deep surveys
To understand the formation and evolution of galaxies, it is important to have a full comprehension of the role played by Metallicity, Star Formation Rate (SFR)...
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CharlaMassive star evolution along the cosmic history: from first stars to the birth of the Solar System
In the early Universe, massive stars played a key role in the early chemical evolution of galaxies and in injecting important amount of ionising radiation in...
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CharlaMassive young clusters in the Milky Way and the Scutum Complex
The last decade has brought the discovery of a large number of massive (M > 10000 M?) young open clusters in the Milky Way, which had previously not been...
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CharlaMeasuring Black Hole Spin
An astrophysical black hole is completely described with just two parameters: its mass and its dimensionless spin. A few dozen black holes have mass estimates...
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CharlaMILES: population synthesis for the 21st century
We present the new stellar population synthesis models based on the empirical stellar spectral library MILES, which can be regarded nowadays as standard in the...
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CharlaMulti-wavelength observations of High Mass X-Ray Binary Systems
High Mas X-ray Binary Systems are important sources of information for many astrophysical fields of research. They are composed by a compact object (black hole...
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CharlaMultiple Stellar Populations & Horizontal Branch Stars in Galactic Globular Clusters: firm evidence, (apparent) anomalies and current shortcomings
Since the early 50' of last century the study of Horizontal Branch stars in Galactic GCs has been of pivotal relevance since the core He-burning stage is an...
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CharlaMultiple Stellar Populations in Galactic Globular Clusters: updated empirical evidence and the theoretical framework
In recent years accurate photometric and spectroscopic observations have provided sound evidence that Galactic Globular Clusters can not be longer considered...