Opendata, web and dolomites


Deep Investigation on Molecular Processes At early Cosmic Times

Total Cost €


EC-Contrib. €






 DeepIMPACT project word cloud

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

heavier    lbg    ultraviolet    molecular    helium    characterizing    representative    reionization    black    dark    physical    accretion    quantify    model    sea    breakthrough    sources    age    evolution    clues    detected    extremely    ray    period    emitters    gas    young    onto    form    cosmic    emission    few    giant    hydrogen    rate    regards    effect    galactic    rates    universe    candidates    alpha    chemical    normal    signature    galaxies    active    clumpy    polluted    dramatic    uv    galaxy    agn    illuminated    gyr    structure    nuclei    thought    time    lae    holes    gmcs    continuum    objects    radiative    lyman    blanketing    ing    stellar    neutral    epoch    laes    reionized    lbgs    formed    searching    extragalactic    fairly    got    luminosities    pivotal    astronomy    medium    bulk    clouds    line    follow    observational    luminous    quite    stars    faint    break    distant    mass    population    eor    supermassive    completely    epochs    star    photons    interstellar    discovery    puzzling    ones   

Project "DeepIMPACT" data sheet

The following table provides information about the project.


Organization address
address: RAPENBURG 70
city: LEIDEN
postcode: 2311 EZ

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 Netherlands [NL]
 Total cost 165˙598 €
 EC max contribution 165˙598 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2018
 Duration (year-month-day) from 2018-02-01   to  2020-01-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITEIT LEIDEN NL (LEIDEN) coordinator 165˙598.00


 Project objective

The discovery of galaxies formed when the Universe was less than 1 Gyr old has been a major breakthrough of extragalactic astronomy. During this period, called Epoch of Reionization (EoR), the Universe experienced a dramatic change: from being a dark “sea” of neutral hydrogen and helium, it got completely reionized and polluted with elements heavier than helium. Thus, characterizing the bulk of galaxy population at these early epochs is pivotal because of their strong impact on the cosmic evolution. The most distant galaxies have been detected searching for their Lyman-α emission (Lyman Alpha Emitters; LAEs), and/or for the “step”, introduced by the blanketing effect of neutral hydrogen into their UV continuum emission (Lyman Break Galaxies; LBGs). LAEs/LBGs are quite “normal” objects, therefore they are thought to be fairly representative of the bulk of galaxies at the end of the EoR. Our knowledge about these sources regards their stellar component (star formation rates, stellar age and mass). However, we have few clues about their interstellar medium, the properties of the giant molecular clouds (GMCs) where stars form, and, most importantly, the possible presence of faint Active Galactic Nuclei (AGN). So far only extremely luminous ones, produced by gas accretion onto supermassive black holes whose formation is puzzling, have been detected during the EoR. I propose to model chemical, physical, and radiative processes in GMCs illuminated by both young stars and AGN. The aim is to quantify: (i) the impact of far-ultraviolet and X- ray photons on the clumpy structure of GMCs, (ii) the resulting time evolution of the line luminosities from GMCs (iii) whether the AGN signature can be observed in the molecular emission and (iv) which are the best LAE/LBG candidates (in term of star formation rate and age of stellar population) for observational follow up targeting the molecular gas.


year authors and title journal last update
List of publications.
2019 A Ferrara, L Vallini, A Pallottini, S Gallerani, S Carniani, M Kohandel, D Decataldo, C Behrens
A physical model for [C ii] line emission from galaxies
published pages: 1-12, ISSN: 0035-8711, DOI: 10.1093/mnras/stz2031
Monthly Notices of the Royal Astronomical Society 489/1 2020-01-29
2019 S Carniani, S Gallerani, L Vallini, A Pallottini, M Tazzari, A Ferrara, R Maiolino, C Cicone, C Feruglio, R Neri, V D’Odorico, R Wang, J Li
Constraints on high-J CO emission lines in z ∼ 6 quasars
published pages: , ISSN: 0035-8711, DOI: 10.1093/mnras/stz2410
Monthly Notices of the Royal Astronomical Society 2020-01-29
2019 L Vallini, A G G M Tielens, A Pallottini, S Gallerani, C Gruppioni, S Carniani, F Pozzi, M Talia
Impact of X-rays on CO emission from high-z galaxies
published pages: 4502-4514, ISSN: 0035-8711, DOI: 10.1093/mnras/stz2837
Monthly Notices of the Royal Astronomical Society 490/4 2020-01-29
2019 M Kohandel, A Pallottini, A Ferrara, A Zanella, C Behrens, S Carniani, S Gallerani, L Vallini
Kinematics of z ≥ 6 galaxies from [C ii] line emission
published pages: 3007-3020, ISSN: 0035-8711, DOI: 10.1093/mnras/stz1486
Monthly Notices of the Royal Astronomical Society 487/3 2020-01-29
2019 J. Matthee, D. Sobral, L. A. Boogaard, H. Röttgering, L. Vallini, A. Ferrara, A. Paulino-Afonso, F. Boone, D. Schaerer, B. Mobasher
Resolved UV and [C ii] Structures of Luminous Galaxies within the Epoch of Reionization
published pages: 124, ISSN: 1538-4357, DOI: 10.3847/1538-4357/ab2f81
The Astrophysical Journal 881/2 2020-01-29
2019 D Decataldo, A Pallottini, A Ferrara, L Vallini, S Gallerani
Photoevaporation of Jeans-unstable molecular clumps
published pages: 3377-3391, ISSN: 0035-8711, DOI: 10.1093/mnras/stz1527
Monthly Notices of the Royal Astronomical Society 487/3 2020-01-29
2020 G C Jones, M Béthermin, Y Fudamoto, M Ginolfi, P Capak, P Cassata, A Faisst, O Le Fèvre, D Schaerer, J D Silverman, Lin Yan, S Bardelli, M Boquien, A Cimatti, M Dessauges-Zavadsky, M Giavalisco, C Gruppioni, E Ibar, Y Khusanova, A M Koekemoer, B C Lemaux, F Loiacono, R Maiolino, P A Oesch, F Pozzi, D Riechers, G Rodighiero, M Talia, L Vallini, D Vergani, G Zamorani, E Zucca
The ALPINE-ALMA [C ii] survey: a triple merger at z ∼ 4.56
published pages: L18-L23, ISSN: 1745-3933, DOI: 10.1093/mnrasl/slz154
Monthly Notices of the Royal Astronomical Society: Letters 491/1 2020-01-29
2018 E. Egami, S. Gallerani, R. Schneider, A. Pallottini, L. Vallini, E. Sobacchi, A. Ferrara, S. Bianchi, M. Bocchio, S. Marassi, L. Armus, L. Spinoglio, A. W. Blain, M. Bradford, D. L. Clements, H. Dannerbauer, J. A. Fernández-Ontiveros, E. González-Alfonso, M. J. Griffin, C. Gruppioni, H. Kaneda, K. Kohno, S. C. Madden, H. Matsuhara, F. Najarro, T. Nakagawa, S. Oliver, K. Omukai, T. Onaka, C. Pearson, I. Perez-Fournon, P. G. Pérez-González, D. Schaerer, D. Scott, S. Serjeant, J. D. Smith, F. F. S. van der Tak, T. Wada, H. Yajima
Probing the high-redshift universe with SPICA: Toward the epoch of reionisation and beyond
published pages: , ISSN: 1448-6083, DOI: 10.1017/pasa.2018.41
Publications of the Astronomical Society of Australia 35 2019-06-06
2019 C Behrens, A Pallottini, A Ferrara, S Gallerani, L Vallini
Ly α emission from galaxies in the Epoch of Reionization
published pages: 2197-2209, ISSN: 0035-8711, DOI: 10.1093/mnras/stz980
Monthly Notices of the Royal Astronomical Society 486/2 2019-06-06
2019 A Pallottini, A Ferrara, D Decataldo, S Gallerani, L Vallini, S Carniani, C Behrens, M Kohandel, S Salvadori
Deep into the structure of the first galaxies: SERRA views
published pages: , ISSN: 0035-8711, DOI: 10.1093/mnras/stz1383
Monthly Notices of the Royal Astronomical Society 2019-06-06

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