Calendar

Abstract: The last few years have seen the advent of new technologies in the sub-mm and IR regimes that allow for unprecedented quality observations of star forming regions. As such we are finally able to produce statistically significant samples of star forming cores at the same time as mapping their surrounding environment with high spatial resolution. In this talk I will present results from the Herschel Space Observatory Gould Belt and HOBYs surveys that covered the Orion A Molecular Cloud complex and the W3 Giant Molecular Cloud. Both these regions contain intermediate to high mass star formation and a rich environment that includes triggered and spontaneous star forming regions as well as a plethora of filaments. We have obtained a statistically significant sample of star forming cores located in different environments and thus derived the properties both of the dense cores as well as their surrounding environment. As such, in this talk I will discuss the role of the environment in deciding the final mass of the forming stars with a focus in the presence of filaments and triggering phenomena in these two star forming regions.

Categorie: Aula: Seminario

Ott

lun

The orbital and astrochemical signatures of giant planet migration around the Sun and beyond. Diego Turrini (INAF-IAPS – Universidad de Atacama)

Biglietti

Ott 30@15:00–17:00

Abstract: For decades the Solar System has been our sole example of a planetary system, resulting in the classical view of planetary formation as a local, orderly process producing stable planetary systems. The ever growing sample of known exoplanets, however, has shown us the major role played by orbital migration and chaos in determining the evolution of planetary systems in our galaxy. This brought to questioning our very understanding of the history of the Solar System and to suggesting that it also could have undergone a more violent evolution than previously thought. In this talk I will describe how the compositional information on the planetary bodies of the Solar System can be used to shed new light on its past, illustrating the past and current investigations performed in the framework of the NASA missions Dawn and Juno, and I’ll discuss how the same principles, if not the same techniques, can be used to investigate of histories of extrasolar planets.

Categorie: Aula: Seminario

settembre – ottobre 2017 Set – Ott 2017