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VIA LACTEA SIGNED

Numerical Simulations of the Milky Way's Accretion History

Total Cost €

0

EC-Contrib. €

0

Partnership

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 VIA LACTEA project word cloud

Explore the words cloud of the VIA LACTEA project. It provides you a very rough idea of what is the project "VIA LACTEA" about.

hydrodynamical    techniques    dwarf    shown    idealised    perturbations    ripples    cosmological    stellar    gain    insights    combination    numerical    inference    pointing    sausage    models    bulge    thick    inner    pond    isolated    events       modified    space    data    constrained    single       axisymmetric    history    see    appreciated    progress    debris    came    sagittarius    nearly    dynamical    uncovered    look    revealed    understand    axisymmetry    body    seeding    deep    satellites    millions    milky    age    enduring    stars    time    disc    release    coupling    kinematics    simulations    mass    structure    genetically    progenitor    ago    falling    population    chemical    previously    assumptions    equilibrium    computing    gaia    galaxy    explore    billion    basic    potentially    evolution    dependent    mathematical    basis    event    complexity    infancy    massive    collision    moving    dating    populations    dark    halo    satellite    accretion   

Project "VIA LACTEA" data sheet

The following table provides information about the project.

Coordinator
LEIBNIZ-INSTITUT FUR ASTROPHYSIK POTSDAM (AIP) 

Organization address
address: AN DER STERNWARTE 16
city: POTSDAM
postcode: 14482
website: www.aip.de

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙498˙750 €
 EC max contribution 1˙498˙750 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2019-STG
 Funding Scheme ERC-STG
 Starting year 2020
 Duration (year-month-day) from 2020-09-01   to  2025-08-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    LEIBNIZ-INSTITUT FUR ASTROPHYSIK POTSDAM (AIP) DE (POTSDAM) coordinator 1˙498˙750.00

Map

 Project objective

The second data release of the Gaia satellite has revealed much complexity in the structure and kinematics of stars in the Milky Way than previously appreciated. In the disc, Gaia has shown that our Galaxy is still enduring the effects of a collision that set millions of stars moving like ripples on a pond. In the stellar halo, the data uncovered a large single debris structure pointing to a massive accretion event 10 billion years ago, at a time when the disc was in its infancy. Our basic assumptions of dynamical equilibrium and axisymmetry at the basis of nearly all mathematical models of the Galaxy are now falling short to make further progress on our inference on the Galaxy’s formation or the distribution of dark matter. Understanding the detailed time-dependent non-axisymmetric phase-space structure of the Galaxy would open new pathways to understand its detailed accretion history, potentially dating its most major perturbations. This proposal aims to explore the deep coupling between the stellar halo and the Milky Way disc and bulge, to gain new insights on the formation history of the Milky Way through its most major accretion events through a number of state-of-the-art computing techniques. Study 1 will look into studying the formation of the inner-halo through a combination of cosmological genetically modified (constrained) simulations and idealised simulations to constrain the mass and accretion time of the Gaia-Sausage progenitor galaxy (and its potential satellite population which came with it) as well as its impact on the formation of the ``thick disc' and growth of the Galaxy past z~3-2. Study 2 will look into the impact of known satellites on the dynamical and chemical and age populations’ evolution of the Milky Way using both cosmological/isolated hydrodynamical simulations and idealised numerical N-body simulations, particularly focusing on the role of the Sagittarius dwarf in seeding the perturbations in the disc we see today.

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The information about "VIA LACTEA" are provided by the European Opendata Portal: CORDIS opendata.

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