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Past internal seminars

The ObAS seminars have moved on-line

From April 3, 2020 until June 26, 2020

Every Friday morning at 10:30 CET 03/4 Nicolas Martin (ObAS) 17/4 Pau Ramos (Barcelona) 24/4 Florent Renaud (Lund) 15/5 Marie Korsaga (Cape Town) 22/5 Zhen Yuan (Shanghai) 29/5 Chervin Laporte...[more]

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]












Search & Find
Dec 3 2020

Gaia is an ambitious ESA mission to chart a three-dimensional map of our Galaxy with unprecedented...

May 13 2020

The ObAS seminars have moved online, every Friday morning at 10:30 here The program of the coming...

Dec 15 2020

Comme la plupart des galaxies spirales, la Voie lactée a en son centre une condensation d'étoiles à...

Oct 9 2020

Le Globe de Coronelli de Strasbourg restauré sera inauguré officiellement (sur invitation) ce...

Sep 19 2020

En raison de la situation sanitaire, il n'y aura pas de visites de la Grande Coupole de...

Jul 28 2020

CDS is hiring a researcher (M/F) on a 24 months contract for the scientific support to the...