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Interpreting Dust Polarization Maps to Characterize the Role of the Magnetic Field in Star Formation Processes

Total Cost €


EC-Contrib. €






 MagneticYSOs project word cloud

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

medium    training    improvements    cutting    dense    handful    sensitive    polarized    dynamics    innovative    observational    opportunity    temperatures    fusion    astronomers    advent    simultaneous    radiative    evolution    predictions    physicists    protoplanetary    nuclei    effect    data    discovery    frontier    begins    cores    conduct    ysos    mm    datasets    resistive    observations    position    ionization    lines    play    interferometric    maps    structures    function    magneticysos    rotationally    alma    stage    coming    forming    disks    unexplored    star    characterizing    cloud    objects    tools    numerical    synthetic    transporting    examples    ingredients    earth    binaries    mhd    fashion    theory    stars    community    chemical    physical    analyzing    computational    planets    galactic    strengthen    angular    young    networks    physics    molecular    origin    mass    scales    undoubtedly    multiple    combine    last    producing    collapse    gas    turn    astrophysical    questions    faceted    sun    transform    until    zeeman    emission    transfer    familiar    simulations    edge    time    leap    rotation    bricks    momentum    confront    orders    circumstellar    rates    class    transport    description    fundamental    shaping    understand    protostars    earliest    initial    nuclear    compact    critical    protostellar    solar    instrumental    expertise    probing    mostly    dust    accretion    instrument    magnetized    stellar    generation    polarization    interpreting    facilities    formed    tailoring    resolution    first    models    transported    magnetic    modern    form    ways    kinematics    rotating    few    sub    answering    reduce    newly    astrophysics    absence    magnitude    spread    interstellar   

Project "MagneticYSOs" data sheet

The following table provides information about the project.


Organization address
address: RUE LEBLANC 25
city: PARIS 15
postcode: 75015

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 1˙500˙000 €
 EC max contribution 1˙500˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2015-STG
 Funding Scheme ERC-STG
 Starting year 2016
 Duration (year-month-day) from 2016-07-01   to  2021-06-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

'Rotation and angular momentum transport play a critical role in the formation and evolution of astrophysical objects, including the fundamental bricks of astrophysical structures: stars. Stars like our Sun form when rotating dense cores, in the interstellar medium, collapse until they eventually reach temperatures at which nuclear fusion begins; while planets, including the Earth, form in the rotationally supported disks around these same young stars. One of the major challenges of modern astrophysics is the “angular momentum problem': observations show that a typical star-forming cloud needs to reduce its specific angular momentum by 5 to 10 orders of magnitude to form a typical star such as our Sun. It is also crucial to solve the angular momentum problem to understand the formation of protoplanetary disks, stellar binaries and the initial mass function of newly formed stars. Magnetic fields are one of the key ways of transporting angular momentum in astrophysical structures: understanding how angular momentum is transported to allow star formation requires characterizing the role of magnetic fields in shaping the dynamics of star-forming structures. The MagneticYSOs project aims at characterizing the role of magnetic field in the earliest stage of star formation, during the main accretion phase. The simultaneous major improvements of instrumental and computational facilities provide us, for the first time, with the opportunity to confront observational information to magnetized models predictions. Polarization capabilities on the last generation of instrument in large facilities are producing sensitive observations of magnetic fields with a great level of detail, while numerical simulations of star formation are now including most of the physical ingredients for a detailed description of protostellar collapse at all the relevant scales, such as resistive MHD, radiative transfer and chemical networks. These new tools will undoubtedly lead to major discovery in the fields of planets and star formation in the coming years. It is necessary to conduct comprehensive projects able to combine theory and observations in a detailed fashion, which in turn require a collaboration with access to cutting edge observational datasets and numerical models. Through an ambitious multi-faceted program of dedicated observations probing magnetic fields (polarized dust emission and Zeeman effect maps), gas kinematics (molecular lines emission maps), ionization rates and dust properties in Class 0 protostars, and their comparison to synthetic observations of MHD simulations of protostellar collapse, we aim to transform our understanding of: 1) The long-standing problem of angular momentum in star formation 2) The origin of the stellar initial mass function 3) The formation of multiple stellar systems and circumstellar disks around young stellar objects (YSOs) Not only this project will enable a major leap forward in our understanding of low-mass star formation, answering yet unexplored questions with innovative methods, but it will also allow to spread the expertise in interpreting high-angular resolution (sub-)mm polarization data. Although characterizing magnetic fields in astrophysical structures represents the next frontier in many fields (solar physics, evolved stars, compact objects, galactic nuclei are a few examples), only a handful of astronomers in the EU community are familiar with interferometric polarization data, mostly because of the absence of large european facilities providing such capabilities until the recent advent of ALMA. It is now crucial to strengthen the European position in this research field by training a new generation of physicists with a strong expertise on tailoring, analyzing and interpreting high angular resolution polarization data.'


year authors and title journal last update
List of publications.
2018 A J Maury, J M Girart, Q Zhang, P Hennebelle, E Keto, R Rao, S-P Lai, N Ohashi, M Galametz
Magnetically regulated collapse in the B335 protostar? I. ALMA observations of the polarized dust emission
published pages: 2760-2765, ISSN: 0035-8711, DOI: 10.1093/mnras/sty574
Monthly Notices of the Royal Astronomical Society 477/2 2019-04-13
2019 A. J. Maury, Ph. André, L. Testi, S. Maret, A. Belloche, P. Hennebelle, S. Cabrit, C. Codella, F. Gueth, L. Podio, S. Anderl, A. Bacmann, S. Bontemps, M. Gaudel, B. Ladjelate, C. Lefèvre, B. Tabone, B. Lefloch
Characterizing young protostellar disks with the CALYPSO IRAM-PdBI survey: large Class 0 disks are rare
published pages: A76, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201833537
Astronomy & Astrophysics 621 2019-04-13
2017 C. Lefèvre, S. Cabrit, A. J. Maury, F. Gueth, B. Tabone, L. Podio, A. Belloche, C. Codella, S. Maret, S. Anderl, Ph. André, P. Hennebelle
CALYPSO view of SVS 13A with PdBI: Multiple jet sources
published pages: L1, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201730766
Astronomy & Astrophysics 604 2019-04-13
2018 Frédéric Galliano, Maud Galametz, Anthony P. Jones
The Interstellar Dust Properties of Nearby Galaxies
published pages: 673-713, ISSN: 0066-4146, DOI: 10.1146/annurev-astro-081817-051900
Annual Review of Astronomy and Astrophysics 56/1 2019-04-13
2018 F. Motte, T. Nony, F. Louvet, K. A. Marsh, S. Bontemps, A. P. Whitworth, A. Men’shchikov, Q. Nguyễn Lương, T. Csengeri, A. J. Maury, A. Gusdorf, E. Chapillon, V. Könyves, P. Schilke, A. Duarte-Cabral, P. Didelon, M. Gaudel
The unexpectedly large proportion of high-mass star-forming cores in a Galactic mini-starburst
published pages: 478-482, ISSN: 2397-3366, DOI: 10.1038/s41550-018-0452-x
Nature Astronomy 2/6 2019-04-13
2018 Maud Galametz, Anaëlle Maury, Josep M. Girart, Ramprasad Rao, Qizhou Zhang, Mathilde Gaudel, Valeska Valdivia, Eric Keto, Shih-Ping Lai
SMA observations of polarized dust emission in solar-type Class 0 protostars: Magnetic field properties at envelope scales
published pages: A139, ISSN: 0004-6361, DOI: 10.1051/0004-6361/201833004
Astronomy & Astrophysics 616 2019-04-13

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