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SNeX SIGNED

The origins of thermonuclear supernova explosions

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EC-Contrib. €

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Partnership

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 SNeX project word cloud

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

exploding    directions    astronomy    ia    evolutionary    he    accretion    sub    evolution    grown    carbon    solutions    mergers    physical    play    indicators    source    producing    reproducibiliy    little    scenarios    wds    grail    serve    population    rarely    transform    wd    progenitors    3d    puzzling    models    origin    observables    compostion    iron    potentially    diverse    synthesis    accreting    explosions    diversity    distance    input    thought    distrbutions    explored    thermonucelar    century    light    curve    peculiar    origins    suggested    hybrid    type    2d    supernovae    fundamental    hydrodynamicalradiative    spectra    gives    types    simulations    majority    modern    transfer    ages    white    material    originate    dwarfs    question    reproduce    star    model    never    oxygen    distrbution    standard    rates    hydro    sne    stellar    luminosity    critical    massive    predicting    thermonuclear    peak    co    holy    questions    channel    neutron    inferred    suggest    fail    preliminary    companions    puzzle    science    universe    cosmological   

Project "SNeX" data sheet

The following table provides information about the project.

Coordinator
TECHNION - ISRAEL INSTITUTE OF TECHNOLOGY 

Organization address
address: SENATE BUILDING TECHNION CITY
city: HAIFA
postcode: 32000
website: www.technion.ac.il

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 Israel [IL]
 Total cost 2˙000˙000 €
 EC max contribution 2˙000˙000 € (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 2020-08-01   to  2025-07-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    TECHNION - ISRAEL INSTITUTE OF TECHNOLOGY IL (HAIFA) coordinator 2˙000˙000.00

Map

 Project objective

Type-Ia supernovae (SNe) are thought to originate from thermonuclear explosions of carbon-oxygen (CO) white-dwarfs (WDs). They play a key role in the evolution of the universe (producing most of the Iron-peak elements); and serve as critical cosmological distance-indicators. The main proposed SNe progenitors are CO-WDs accreting material from stellar companions; and mergers of two CO-WDs. However, all suggested models fail to reproduce the diverse physical characteristics of Ia-SNe; their inferred rates/ages/luminosity distrbution; and their puzzling wide sub-types diversity. Finding the origins and the evolutionary pathways of thermonuclear SNe remains one of the most important “holy grail” open questions in modern astronomy. Here we propose novel directions and potential solutions to this question, and suggest new scenarios for the origin of all sub-types of thermonucelar SNe. Supported by preliminary results, we propose that (1) the little-explored mergers of CO-WDs with hybrid He-CO WDs play a key-role in producing most types of SNe, and may provide a viable model for the origin of the majority of thermonuclear SNe, their diversity and their distrbutions; (2) neutron star-WD mergers may explain the origin of peculiar rapidly evolving SNe; (3) the channel of exploding accretion-grown massive CO-WDs never/rarely gives rise to standard Ia-SNe. We propose an end-to-end open-source-based modelling of SNe (providing easy access and reproducibiliy of our results) including stellar evolution of their progenitors; 3D hydro simulations of WD mergers; 2D (3D) thermonuclear-hydrodynamicalradiative-transfer models (predicting detailed light-curve/spectra/compostion observables); and population synthesis studies. Our proposed science can potentially transform the field; solve the century-long puzzle of Ia-SNe and explain their origins; and provide critical input for understanding the evolution of the universe and the measurements of its fundamental cosmological parameters.

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