582 new open clusters in the Galactic disc of our Milky Way

Alfred Castro-Ginard et al. have found 582 new open clusters, using the data from the second release of the Gaia mission. Open clusters are groups of gravitationally bound stars, that were formed in the same event – so they have the same chemical composition and age – and share a common position and proper motion. Those open clusters are fundamental objects in galaxies, and key for the understanding of the structure and evolution of the Milky Way. While young open clusters allow researchers to trace the star forming regions and to understand the star forming mechanisms, intermediate and old...

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Gaia starts mapping the galactic bar in the Milky Way (Notícies UB, 16/07/2019)

Gaia starts mapping the galactic bar in the Milky Way (Notícies UB) The first direct measurement of the bar-shaped collection of stars at the centre of our Milky Way galaxy has been made by combining data from the Gaia mission (European Space Agency, ESA) with complementary observations by ground- and space-based telescopes. The study, published in Astronomy & Astrophysics, was led by researchers from the Institute of Science Cosmos of the University of Barcelona and from the Leibniz Institute for Astrophysics Potsdam (Germany). The second release of data from Gaia star-mapping...

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Roger Mor: En busca del nacimiento de la Vía Láctea (El Mundo, 13/05/2019)

ROGER MOR En busca del nacimiento de la Vía Láctea (El Mundo) El científico del Instituto de Ciencias del Cosmos de la Universidad de Barcelona encabeza como primer firmante, un trabajo de investigación que profundiza en el porqué y cuándo del nacimiento de las estrellas de la Vía Láctea gracias a los datos de la sonda Gaia.

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Un inesperado ‘baby boom’ de estrellas en la Vía Láctea (El Mundo, 13 Mayo 2019)

Un inesperado ‘baby boom’ de estrellas en la Vía Láctea Científicos de Barcelona descubren que buena parte de los astros de la galaxia nacieron en una época en la que quedaba poco gas. El choque con otra galaxia pudo haber reactivado su formación Date: 13 Mayo 2017 Media: El Mundo Link to the new: https://www.elmundo.es/ciencia-y-salud/ciencia/2019/05/13/5cd7140bfc6c83be238b477e.html La historia de una estrella es una historia convulsa. Como la de las galaxias en las que viven. Y gracias a una nave espacial que está estudiando más de mil millones de astros los científicos están...

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Gaia detects a shake in the Milky Way

Image: The spiral shape of fig 1c of our article appears inside an old watch symbolising the fact that these data has allowed us to date back the perturbation that shook the Milky Way disk. This figure shows how from the new obtained Gaia data we can know more about the past of the Galaxy.   Credit: Edmon de Haro/iStock.   Researchers of the UB and the University of Groningen lead one of the first big discoveries from the Gaia Mission, published in Nature A team led by researchers from the Institute of Cosmos Sciences of the University of Barcelona (ICCUB, UB-IEEC) and the...

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Gaia’s snapshot of another galaxy (ESA, 20 April 2017)

Gaia’s snapshot of another galaxy Link: http://sci.esa.int/gaia/59023-gaia-s-snapshot-of-another-galaxy/ While compiling an unprecedented census of one billion stars in our Galaxy, ESA’s Gaia mission is also surveying stars beyond our Milky Way. A new image of M33, also known as the Triangulum galaxy, shows tens of thousands of stars detected by Gaia, including a small stellar census in its star-forming region NGC 604. This is a striking example of the mission’s potential to detect and characterise stars in nearby galaxies. Gaia’s view of the M33 galaxy. Credit:...

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