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Cat-In-hAT SIGNED

Catastrophic Interactions of Binary Stars and the Associated Transients

Total Cost €

0

EC-Contrib. €

0

Partnership

0

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 Cat-In-hAT project word cloud

Explore the words cloud of the Cat-In-hAT project. It provides you a very rough idea of what is the project "Cat-In-hAT" about.

detectors    spectra    surveys    connect    polarimetric    orbital    amplification    wave    interactions    profiles    mesh    accompanied    light    object    3d    timescales    chemical    expansion    facilities    illuminate    perhaps    break    brightenings    angles    envelope    molecules    star    curves    exhibiting    evolution    signatures    class    magnetohydrodynamics    despite    dimensional    timescale    entirely    line    variant    mass    progress    time    moment    observations    predictions    examine    transients    channels    physical    hydrodynamics    coupling    fundamental    magnetic    waves    comprehensively    red    area    least    commences    ground    unbind    remnant    paradigm    merger    binaries    probe    catastrophic    angular    domain    physics    gravitational    velocities    urgently    transient    critically    radiation    outburst    interpret    motivated    resolve    microphysics    inaccessible    theoretical    moving    slow    energy    remnants    momentum    rt    reactions    dust    compact    stability    regime    depends    cee    binary    dynamical    sources    copious    centuries   

Project "Cat-In-hAT" data sheet

The following table provides information about the project.

Coordinator
UNIVERZITA KARLOVA 

Organization address
address: OVOCNY TRH 560/5
city: PRAHA 1
postcode: 116 36
website: www.cuni.cz

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 Czech Republic [CZ]
 Total cost 1˙243˙218 €
 EC max contribution 1˙243˙218 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2018-STG
 Funding Scheme ERC-STG
 Starting year 2019
 Duration (year-month-day) from 2019-01-01   to  2023-12-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERZITA KARLOVA CZ (PRAHA 1) coordinator 1˙243˙218.00

Map

 Project objective

'One of the crucial formation channels of compact object binaries, including sources of gravitational waves, critically depends on catastrophic binary interactions accompanied by the loss of mass, angular momentum, and energy ('common envelope' evolution - CEE). Despite its importance, CEE is perhaps the least understood major phase of binary star evolution and progress in this area is urgently needed to interpret observations from the new facilities (gravitational wave detectors, time-domain surveys).

Recently, the dynamical phase of the CEE has been associated with a class of transient brightenings exhibiting slow expansion velocities and copious formation of dust and molecules (red transients - RT). A number of RT features, especially the long timescale of mass loss, challenge the existing CEE paradigm.

Motivated by RT, I will use a new variant of magnetohydrodynamics to comprehensively examine the 3D evolution of CEE from the moment when the mass loss commences to the remnant phase. I expect to resolve the long timescales observed in RT, characterize binary stability in 3D with detailed microphysics, illuminate the fundamental problem of how is orbital energy used to unbind the common envelope in a regime that was inaccessible before, and break new ground on the amplification of magnetic fields during CEE.

I will establish RT as an entirely new probe of the CEE physics by comparing my detailed theoretical predictions of light curves from different viewing angles, spectra, line profiles, and polarimetric signatures with observations of RT. I will accomplish this by coupling multi-dimensional moving mesh hydrodynamics with radiation, dust formation, and chemical reactions. Finally, I will examine the physical processes in RT remnants on timescales of years to centuries after the outburst to connect RT with the proposed merger products and to identify them in time-domain surveys. '

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The information about "CAT-IN-HAT" are provided by the European Opendata Portal: CORDIS opendata.

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