Opendata, web and dolomites


Tomography of the Milky waY

Total Cost €


EC-Contrib. €






 TOMMY project word cloud

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

esa    galaxy    release    written    home    light    measuring    giants    harvest    collaborations    motions    er    abundances    utilising    era    bar    gaia    leaders    science    group    5kpc    horizon    astronomers    map    galaxies    rosetta    researcher    template    chemical    shed    accurately    structure    candles    lie    thereby    place    milky    combining    stone    shape    promise    techniques    3d    profile    view    almost    front    lies    rewards    65    arms    form    billion    infrared    community    stars    proper    works    leaps    clump    infer    regions    millions    inner    lasting    astronomical    understand    satellite    poised    red    huge    stellar    obscured    plane    global    forefront    star    surveys    ground    fundamental    standard    15    data    centre    mass    near    synergies    host    tomographically    galactic    spiral    decompose    maps    dark    rcgs    velocities    formed    dusty    2018    positions    disk    investment    dynamics   

Project "TOMMY" data sheet

The following table provides information about the project.


Organization address
address: RUE MICHEL ANGE 3
city: PARIS
postcode: 75794

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 France [FR]
 Total cost 173˙076 €
 EC max contribution 173˙076 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2017
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2018
 Duration (year-month-day) from 2018-10-01   to  2020-09-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

We are poised to make huge leaps in our understanding of the Milky Way. In 2018 ESA's Gaia satellite will release measurements of the positions and velocities of almost a billion stars. In millions of those, astronomers on the ground are accurately measuring the abundances of ~15 elements. These detailed star-by-star measurements are possible only in our Galaxy, and promise to make the Milky Way a Rosetta Stone for understanding in detail the fundamental processes that shape and form all galaxies.

However a global understanding of the Milky Way will remain a challenge: Gaia's horizon lies in front of the Galactic centre, and its view is obscured in the dusty Galactic plane where most of the stellar mass lies. 65% of the Galaxy's stars lie within 5kpc of the Galactic centre, so we cannot use the Milky Way as a template without understanding the Inner Galaxy. We will use novel techniques to shed light on these important inner regions. Utilising Red Clump Giants (RCGs) as standard candles we will tomographically decompose the Galaxy: 1) By combining Gaia data with near-infrared proper motions, we will identify RCGs in the inner Galaxy, and use them to map the stellar mass in the inner disk and spiral arms. 2) We will measure the abundances of RCGs towards the bar and so make 3D chemical maps of the inner Galaxy to understand how the bar formed, and how it is related to the inner disk. 3) Combining Gaia proper motions with RCGs in the inner Galaxy we will measure the Galactic potential, and thereby infer the inner dark matter profile.

The Host Group are leaders in Milky Way surveys, and the Experienced Researcher (ER) has written important works in Galactic structure and dynamics. These synergies will result in long-lasting collaborations, and help the European astronomical community harvest the rewards from its investment in Galactic science. In an era where we will finally understand our home galaxy, the research in this proposal will place the ER at the forefront.

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

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lastchecktime (2020-10-29 21:48:58) correctly updated