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PRIMORDIAL

UNVEILING THE NATURE OF PRIMORDIAL STARS

Total Cost €

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EC-Contrib. €

0

Partnership

0

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 PRIMORDIAL project word cloud

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

off    members    paris    group    extremely    simultaneously    initial    local    first    newly    segue    amount    dwarf    huge    fossils    cosmology    galaxy    maximize    imprint    observatory    formed    ancient    survey    surveys    signatures    characterizing    metal    hunting    resolution    satellites    reveal    spectroscopic    fossil    disappeared    apogee    chemical    kinematics    latest    generation    rare    chance    strategy    until    turn    mass    carry    regions    poor    place    never    theoretical    deep    gas    experts    lived    detection    exploited    opportunity    eso    select    function    forthcoming    chemistry    suggest    evolution    survive    simulations    heavy    primordial    catch    milky    host    follow    data    galaxies    era    day    enriched    nature    models    probability    preserving    numerical    observe    stars    ideal    candidates    massive    gaia    living    halo    environment    surrounding    hosts    fundamental    cosmological    observational    photospheres   

Project "PRIMORDIAL" data sheet

The following table provides information about the project.

Coordinator
OBSERVATOIRE DE PARIS 

Organization address
address: AVENUE DE L OBSERVATOIRE 61
city: PARIS
postcode: 75014
website: www.obspm.fr

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]
 Project website https://www.arcetri.astro.it/
 Total cost 173˙076 €
 EC max contribution 173˙076 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-09-01   to  2018-12-21

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    OBSERVATOIRE DE PARIS FR (PARIS) coordinator 173˙076.00

Map

 Project objective

'Understanding the nature of the first stars is a fundamental problem in Cosmology and Galaxy Formation. Numerical simulations suggest that primordial stars were more massive that present-day stars, and so they rapidly disappeared. Heavy elements newly produced by these stars enriched the surrounding gas, out of which long-lived, low-mass stars formed. These 'second-generation' stars survive until present-day, preserving in their photospheres the chemical imprint of the first stars. In the Local Group, high-resolution spectroscopic studies, offer us the unique opportunity to reveal these fossil signatures. But second-generation stars are extremely rare, making their detection challenging. In the current era of wide and deep spectroscopic surveys, such as Gaia-ESO, SEGUE, and APOGEE, we will have the chance to catch many of these stars. This project aims at characterizing the first stars by hunting their living fossils, in the Local Group. By further developing my cosmological chemical-evolution models, and exploiting the huge, unique, and already available data-sets for ancient Local group stars, I will simultaneously study the chemical evolution of the Milky Way and its dwarf satellites to: 1) define the host environment (halo regions, dwarf galaxies) and properties (chemistry, kinematics) of second-generation stars; 2) select candidates for high-resolution spectroscopic follow-up; 3) constrain strongly the primordial initial mass function. The latest results from the Turn-Off Primordial Stars survey, at the host institution, will be exploited. The proposed theoretical-observational strategy, never used before, will maximize the probability to observe second-generation stars, making use of the huge amount of new and forthcoming data to characterize primordial stars. The Paris Observatory is the ideal place to carry out this research, as it hosts major experts in spectroscopic studies of metal-poor stars, Galaxy Formation, and members of the Gaia-ESO survey.'

 Publications

year authors and title journal last update
List of publications.
2017 Pallottini A., Ferrara A., Gallerani S., Vallini L., Maiolino R. & Salvadori S.
Zooming on the internal structure of z=6 galaxies
published pages: , ISSN: 0035-8711, DOI:
MNRAS 2019-06-13
2016 Caffau E.; Bonifacio P.; Spite M.; Spite F.; Monaco L.; Sbordone L.; François P.; Gallagher A. J.; Plez B.; Zaggia S.; Ludwig H.-G.; Cayrel R.; Koch A.; Steffen M.; Salvadori S.; Klessen R.; Glover S.; Christlieb N.
TOPoS. III. An ultra iron-poor multiple CEMP system
published pages: , ISSN: 0004-6361, DOI:
A&A Letter 2019-06-13
2017 Graziani L., de Bennassuti M., Schnedeir R., Daisuke K., Salvadori S.
The history of the dark and luminous side of Milky Way-like progenitors
published pages: , ISSN: 0035-8711, DOI:
MNRAS 2019-06-13
2017 de Bennassuti M, Salvadori S., Schnedeir R., Valiante R., Omukai K
Limits on Population III star formation with the most iron-poor stars
published pages: , ISSN: 0035-8711, DOI:
MNRAS 2019-06-13
2017 Duffau S., Caffau E., Sbordone L., Bonifacio P., Andrievsky, S., Korotin, S., Babusiaux, C., Salvadori S., and other 43 co-authors
The Gaia-ESO Survey: Galactic evolution of sulphur and zinc
published pages: , ISSN: 0004-6361, DOI:
A&A 2019-06-13

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