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Flows of hot plasma connecting the Milky Way centre to the corona, halo and beyond

Total Cost €


EC-Contrib. €






 Hot Milk project word cloud

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

disc    despite    limited    corona    away    fundamental    survey    soft    confirmed    interplay    array    halo    invaluable    hot    sensitive    re    parsec    plausible    centre    wavelength    galaxies    confirming    sub    prototype    ingredient    xmm    neighbourhood    baryons    telescopes    universe    narrow    magnitude    ray    galaxy    coverage    erc    legacy    existence    erosita    offers       evolution    plane    maps    local    containing    feedback    ism    traced    condensation    gc    agn    rectify    spiral    additionally    covered    depends    03    generation    revolution    trace    cosmic    critically    sensitivity    unknown    affairs    missing    kpc    imaging    milky    basically    rosat    phases    stellar    outside    candidate    details    plasma    orders    scales    surveys    capture    emitting    medium    horizon    band    approved    harder    rays    obscuration    improvement    energetic    sky    view    energy    opportunity    connection    instruments    galactic    solar    beginning    outflows    feasibility    interstellar   

Project "Hot Milk" data sheet

The following table provides information about the project.


Organization address
city: ROMA
postcode: 136

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 Italy [IT]
 Total cost 1˙989˙375 €
 EC max contribution 1˙989˙375 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2019-COG
 Funding Scheme ERC-COG
 Starting year 2020
 Duration (year-month-day) from 2020-03-01   to  2025-02-28


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    ISTITUTO NAZIONALE DI ASTROFISICA IT (ROMA) coordinator 1˙264˙375.00


 Project objective

We are less than one year away from the beginning of a revolution in our understanding of the hot, X-ray emitting, plasma of the Milky Way. The growth of galaxies in the local Universe critically depends on the interplay (via outflows and re-condensation) between the hot plasma with the other phases of the interstellar medium (ISM). As a prototype for typical spiral galaxies, the Milky Way offers the unique opportunity to capture the important details of such feedback all the way from sub-parsec to galactic scales. In the 90's, the ROSAT all-sky X-ray maps confirmed the existence of a hot component of the ISM, the Galactic corona. However, because of strong obscuration in the soft X-ray energy band, those maps have a limited horizon of ~1 kpc in the Galactic plane. Therefore, despite the fundamental role of the hot ISM phase, its properties are still basically unknown outside the Solar neighbourhood. My XMM surveys of the Galactic centre (GC) demonstrate that the hot ISM phase can be traced throughout the disc in the harder X-ray band, confirming the feasibility of this ERC project and the strong connection between GC activity and the Galactic corona. Additionally, the hot plasma is a plausible candidate for containing the missing Galactic baryons and a key ingredient for galaxy evolution. However, so far only less than 0.03% of the Milky Way has been covered by the narrow fields of view of current X-ray imaging telescopes. The eROSITA all-sky survey will rectify this state of affairs. Should this ERC proposal be approved, we will trace the connection and feedback between the Galactic corona and halo with the energetic activity at the GC (e.g., due to cosmic rays, stellar and AGN outflows). This will represent one to two orders of magnitude improvement in sensitivity and/or coverage, compared to current surveys. Our sensitive X-ray maps will represent an invaluable legacy for future multi-wavelength studies with current and next generation array instruments.

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

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