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Séminaires passés (à partir de sept. 2012)

Precision dating of old stellar populations with helium-burning stars

Le 6 mars 2020
De 10h30 à 12h00

Alessandro Savino ARI Heidelberg The study of nearby resolved galaxies is a source of transformational insights into the mechanisms that regulate galaxy evolution and it provides us with a...[En savoir plus]

The diffuse intra-cluster component in the Virgo cluster

Le 28 février 2020
De 10h30 à 12h00

Alessia Longobardi LAM Structure evolution is now understood to be the products of a Hubble time's worth of merging, accretion, and interaction with the surrounding environment. This history is...[En savoir plus]

Constraints on the High-Redshift Quasar Population from Ongoing Helium Reionization at z~4

Le 21 février 2020
De 10h30 à 12h00

Gabor Worseck AIP Potsdam Akin to neutral hydrogen, intergalactic singly ionized helium can be probed by Lyman alpha forest spectroscopy of quasars. The advent of GALEX and HST/COS have...[En savoir plus]

The new phase space complexity of old stellar systems

Le 14 février 2020
De 10h30 à 12h00

Anna Lisa Varri University of Edinburgh Our traditional interpretative picture of the internal dynamics of ancient star clusters has been recently revolutionized by a series of discoveries about...[En savoir plus]

Deuterated Species as Tracers of Star Formation

Le 7 février 2020
De 10h30 à 12h00

Laurent Pagani Observatoire de Paris In the ‘70s, while several groups were trying to measure various isotopic ratios in dark clouds (13C/12C, 18O/17O/16O,...), it was quickly realized that the...[En savoir plus]

Deciphering the formation & structure of the Milky Way from chemo-dynamics and cosmological simulations

Le 31 janvier 2020
De 10h30 à 12h00

Francesca Fragkoudi MPA Garching   Embedded in the chemo-dynamical properties of stellar populations in the inner Milky Way (MW), are clues to the formation history of our Galaxy. By combining...[En savoir plus]

Fullerenes, graphenes, PAHs Polycyclic aromatics and the Diffuse Interstellar Bands

Le 24 janvier 2020
De 10h30 à 12h00

Bernard Foing ESA/ESTEC   C60 was discovered in 1985 from a mass spectrometer peak  by Kroto, Curl, Smalley & al,, for which they got the Nobel Prize in Chemistry in 1996. It was then produced in...[En savoir plus]

Constraining feedback models with Giant Ly-alpha nebulae at z~3

Le 17 janvier 2020
De 10h30 à 12h00

Gabriele Pezzulli ETH Zurich   Galaxy formation models rely on mechanisms to keep the majority of baryons outside of the main body of galaxies. Different scenarios, however, make different...[En savoir plus]

Search & Find
avril 25 2018

La date du 25 avril 2018 est attendue avec impatience par de nombreux astronomes du monde entier....

mars 5 2020

    L’observatoire astronomique de Strasbourg accueille 83 personnes, dont 56 fonctionnaires...

févr. 7 2020

Des chercheurs de Bonn et de Strasbourg ont simulé la formation de galaxies dans un Univers sans...

janv. 9 2020

Omkar Bait, astronome au NCRA (Pune, Inde) et ses collaborateurs (dont Pierre-Alain Duc,...

déc. 6 2019

Gaia Image of the Week Les amas globulaires sont des collections sphéroïdales denses d'environ un...