Splinter Meeting Populations

Stellar Populations in and around the Milky Way

Time: Tuesday September 19, 14:00-16:30 and Wednesday September 20, 14:00-16:30 and 17:00-19:00

Room: HS5

Convenors: S. Kamann (Liverpool), E. K. Grebel (Heidelberg), M. Hilker (Garching), E. Starkenburg (Potsdam), S. Dreizler (Göttingen), T.-O. Husser (Göttingen)

Our view of our cosmic neighbourhood is getting more and more detailed. With the Hubble Space Telescope, it became possible to resolve many members of the Local Group into individual stars, a legacy that will soon be continued by its successor, the James Webb Space Telescope. In the meantime, our Galaxy is being surveyed in unprecedented detail by the Gaia satellite and wide-field imaging surveys are continuing to discover its faintest companion galaxies. In the not too distant future, the E-ELT will push the study of resolved stellar populations towards local volume galaxies.

Spectroscopic follow-up is indispensable for the interpretation of the photometric and astrometric data, therefore the advent of powerful spectrographs marked a cornerstone for the study of resolved stellar populations. On small scales, integral-field spectrographs such as KMOS or MUSE allow us to target individual stars even in crowded stellar fields nowadays. On larger scales, the next generation of multi-object spectrographs (including 4MOST or the proposed MOSAIC instrument) will soon revolutionise our capabilities for wide-field spectroscopic surveys.

The purpose of this splinter is to bring together the German community working on optical/NIR spectroscopy of resolved stellar populations. We plan to discuss the current status of the field, identify open questions, and exchange about new ideas with current and future observing facilities. The topics we aim to cover include (but are not exclusive to)

  • The spectroscopic view of Gaia on the Milky Way
  • The stellar populations in star clusters and their dynamics
  • The smallest satellites in our Local Group
  • Star formation histories of nearby galaxies
  • Wide fields vs. crowded fields – combining multi-object and integral-field spectroscopy

We plan to have a healthy mix of contributed and invited talks. Graduate students are especially encouraged to apply.


14:00-16:30 Session 1: Tuesday September 19 (HS5)

14:00  Stefan Jordan:
The Gaia Mission - Overview, First Results, and future prospects

14:29  Andreas Koch:
Stellar populations in the bulge - from no-resolution to high-resolution

14:58  Anke Arentsen:
Uncovering metal-poor stars in the Galactic bulge with the Pristine survey

15:16  Roelof de Jong:
4MOST - The facility to spectrally explore Stellar Populations in and around the Milky Way

15:45  Tim-Oliver Husser:
MUSE - The Discovery Machine

16:14  Fabian Göttgens:
Search for emission line objects in Galactic globular clusters

14:00-16:30 Session 2: Wednesday September 20 (HS5)

14:00  Marilyn Latour:
Spectroscopic insights on the extreme horizontal branch population of omega Centauri

14:18  Steven Hämmerich:
MUSE spectroscopy of Horizontal Branch stars in omega Cen and NGC 6752

14:36  Benjamin Giesers:
Binary stars in Galactic globular clusters

14:54  Maria-Rosa Cioni:
The Magellanic Clouds

15:24  Dalal El-Youssoufi:
Morphology and Spatial distribution of Stellar Populations in the Magellanic Clouds from the VMC survey

15:42  Varsha Ramachandran:
Stellar population of the superbubble N 206 in the LMC

16:00  Lex Kaper:
E-ELT/MOSAIC: Exploring massive star populations in the Local Group and beyond

16:30-17:00 Coffee Break & Poster Session (Foyer Physics)

17:00-19:00 Session 3: Wednesday September 20 (HS5)

17:00  Tomer Shenar:
The Wolf-Rayet population in the Magellanic Clouds and implications on star formation

17:20  Martin Roth:
Spectacular details of resolved stellar populations in NGC300 revealed through the combination of ACS with MUSE

17:40  Bertrand Lemasle:
Abundance gradients in the Milky Way disk

18:10  Guillaume Guiglion:
The AMBRE Project: r-process element abundances in the Milky Way thin and thick discs

18:30  Ulrich Heber:
Hypervelocity stars

Related contributions

PresentationTitleType PDF
BischoffPhotometric variability in globular clustersPoster PDF
MartensMass-dependent dynamics in globular clustersPoster PDF
MolinskiMultiple stellar populations in globular clustersPoster PDF