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Past internal seminars

Precision dating of old stellar populations with helium-burning stars

March 6, 2020
From 10:30 until 12:00

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...[more]

The diffuse intra-cluster component in the Virgo cluster

February 28, 2020
From 10:30 until 12:00

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...[more]

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

February 21, 2020
From 10:30 until 12:00

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...[more]

The new phase space complexity of old stellar systems

February 14, 2020
From 10:30 until 12:00

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...[more]

Deuterated Species as Tracers of Star Formation

February 7, 2020
From 10:30 until 12:00

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...[more]

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

January 31, 2020
From 10:30 until 12:00

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...[more]

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

January 24, 2020
From 10:30 until 12:00

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...[more]

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

January 17, 2020
From 10:30 until 12:00

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...[more]

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Next

Search & Find
Apr 25 2018

Astronomers worldwide are eagerly awaiting for April 25 2018. This is the date the European Space...

Mar 5 2020

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

Feb 11 2020

A study by the University of Bonn simulates a universe in which Newton's laws are only valid to a...

Jan 15 2020

Bait et al. report the discovery using the Giant Metrewave Radio Telescope of an extremely large...

Dec 6 2019

Globular clusters are dense spheroidal collections of ~a million very old stars that orbit around a...