Tag: stelle giovani

Morphology, dynamics, and star formation in the Cone Nebula. The study: “Spatial and dynamical structure of the NGC 2264 star-forming region” of E. Flaccomio (INAF – OAPA) recently appeared on A&A

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Several questions about the star formation process are still debated. For instance, we know that stars form from the gravitational contraction of clouds of gas and dust, called “molecular clouds,” since they are mainly made of molecular hydrogen. Mainly thanks to observations from the Herschel satellite, we also know that most star formation occurs in long filaments embedded in these

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A new catalog of the Young Stellar Objects within 4500 light years based on Gaia/EDR3. The study: “Low mass young stars in the Milky Way unveiled by DBSCAN and Gaia EDR3. Mapping the star forming regions within 1.5 Kpc” of L. Prisinzano (INAF – OAPA) recently published by A&A

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After their formation, during the first few million of years (how many? it depends on the mass: the larger the stellar mass the faster is their evolution) stars continue to contract under their the action of their own gravity, rising their temperature and density. During this phase, their nuclei have not started yet the thermonuclear reactions that will power the

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Febbraio 2017, la ricerca in evidenza: La pioggia solare e la turbolenta realtà delle stelle giovani

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I ricercatori dell’Osservatorio Astronomico di Palermo stanno studiando i fenomeni che caratterizzano le stelle giovani, con pochi milioni di anni di vita, osservando ciò che accade nel nostro “vecchio” (5 miliardi di anni) Sole.   Lo studio del Sole e delle stelle giovani sono da tempo due pilastri portanti dell’attività di ricerca dell’Osservatorio Astronomico di Palermo, due realtà quasi indipendenti

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