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ICEDRAGON SIGNED

Modelling of dust formation and chemistry in AGB outflows and disks

Total Cost €

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EC-Contrib. €

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Partnership

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 ICEDRAGON project word cloud

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

planets    link    identification    material    secondary    lose    circumstellar    gains    nucleation    chemical    answers    seeds    stars    decades    synergy    launching    drives    ideal    physics    thought    solar    therein    composition    astrochemical    gas    cse    stellar    asymptotic    feedback    outflows    extended    viability    unknown    layers    medium    gaseous    sophisticated    grains    observations    branch    expertise    models    dust    disk    giant    wind    despite    protoplanetary    close    interdisciplinary    host    star    forming    ice    delivered    twilight    time    fundamentally    revealed    connect    structure    outer    model    interstellar    reactions    agb    deduce    puzzles    icedragon    refractory    fellow    limiting    enrichment    planet    couple    ism    forms    fresh    encoded    grows    respective    outflow    generation    disks    envelope    chemistry    combines    enrich    organic    solving    first    inner    evolution    mechanism   

Project "ICEDRAGON" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITY OF LEEDS 

Organization address
address: WOODHOUSE LANE
city: LEEDS
postcode: LS2 9JT
website: www.leeds.ac.uk

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 United Kingdom [UK]
 Total cost 212˙933 €
 EC max contribution 212˙933 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2019
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2020
 Duration (year-month-day) from 2020-11-01   to  2022-10-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITY OF LEEDS UK (LEEDS) coordinator 212˙933.00

Map

 Project objective

In their twilight years, solar-like stars in the asymptotic giant branch (AGB) phase enrich the interstellar medium (ISM) with fresh material (gas and dust) for new stars and planets. AGB stars lose their outer layers to the ISM through a stellar outflow or wind, forming an extended circumstellar envelope (CSE). The wind is thought to be dust-driven, with dust grains forming close to the star. State-of-the-art observations have revealed the composition of the inner CSE, allowing the first identification of gas-phase seeds for dust grains, and the presence of disks around AGB stars. Despite major knowledge gains over the past three decades, it is still not fully understood how dust forms, grows, and drives the stellar wind, limiting our understanding of both stellar evolution and the chemical enrichment of the ISM. Moreover, the structure and chemistry of AGB disks is unknown; if similar to protoplanetary disks, second generation planet formation may be possible therein.

Solving these puzzles requires new and sophisticated models that connect dust formation with chemistry and couple gas and dust chemistry throughout the wind and in the disk. With ‘ICE and Dust Reactions in AGB Gaseous Outflows and disks with Nucleation’ (ICEDRAGON), we will develop the first models that link the chemistry throughout the whole CSE and the first chemical model of an AGB disk. The novel models will allow us to study, for the first time, the organic refractory feedback of dust grains delivered to the ISM and the role of dust formation on the gas-phase chemistry throughout the CSE. This is necessary to deduce the physics behind the wind launching mechanism, that is encoded in the observed composition. The AGB disk model will provide the first answers to the viability of secondary planet formation. The synergy between fellow and host is ideal for this astrochemical (and fundamentally interdisciplinary) project, as it combines their respective expertise in chemical modelling.

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