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    Rights statement: This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version Marco Grossi, Cristina A C Fernandes, David Sobral, José Afonso, Eduardo Telles, Luca Bizzocchi, Ana Paulino-Afonso, Israel Matute; Bulgeless galaxies in the COSMOS field: environment and star formation evolution at z < 1, Monthly Notices of the Royal Astronomical Society, Volume 475, Issue 1, 21 March 2018, Pages 735–747, https://doi.org/10.1093/mnras/stx3165 is available online at: https://academic.oup.com/mnras/article/475/1/735/4712233

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Bulgeless galaxies in the COSMOS field: environment and star formation evolution at z < 1

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Bulgeless galaxies in the COSMOS field : environment and star formation evolution at z < 1. / Grossi, Marco; Fernandes, Cristina; Sobral, David et al.

In: Monthly Notices of the Royal Astronomical Society, Vol. 475, No. 1, 21.03.2018, p. 735-747.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Grossi, M, Fernandes, C, Sobral, D, Afonso, J & Paulino-Afonso, A 2018, 'Bulgeless galaxies in the COSMOS field: environment and star formation evolution at z < 1', Monthly Notices of the Royal Astronomical Society, vol. 475, no. 1, pp. 735-747. https://doi.org/10.1093/mnras/stx3165

APA

Grossi, M., Fernandes, C., Sobral, D., Afonso, J., & Paulino-Afonso, A. (2018). Bulgeless galaxies in the COSMOS field: environment and star formation evolution at z < 1. Monthly Notices of the Royal Astronomical Society, 475(1), 735-747. https://doi.org/10.1093/mnras/stx3165

Vancouver

Grossi M, Fernandes C, Sobral D, Afonso J, Paulino-Afonso A. Bulgeless galaxies in the COSMOS field: environment and star formation evolution at z < 1. Monthly Notices of the Royal Astronomical Society. 2018 Mar 21;475(1):735-747. Epub 2017 Dec 8. doi: 10.1093/mnras/stx3165

Author

Grossi, Marco ; Fernandes, Cristina ; Sobral, David et al. / Bulgeless galaxies in the COSMOS field : environment and star formation evolution at z < 1. In: Monthly Notices of the Royal Astronomical Society. 2018 ; Vol. 475, No. 1. pp. 735-747.

Bibtex

@article{211b70ed4c7c4e54b22b1a5a0a59a358,
title = "Bulgeless galaxies in the COSMOS field: environment and star formation evolution at z < 1",
abstract = "Combining the catalogue of galaxy morphologies in the COSMOS field and the sample of Hα emitters at redshifts z = 0.4 and z = 0.84 of the HiZELS survey, we selected ∼ 220 star-forming bulgeless systems (S{\' }ersic index n ≤ 1.5) at both epochs. We present their star formation properties and we investigate their contribution to the star for- mation rate function (SFRF) and global star formation rate density (SFRD) at z < 1. For comparison, we also analyse Hα emitters with more structurally evolved mor- phologies that we split into two classes according to their S{\' }ersic index n: intermediate (1.5 < n ≤ 3) and bulge-dominated (n > 3). At both redshifts the SFRF is dominated by the contribution of bulgeless galaxies and we show that they account for more than 60% of the cosmic SFRD at z < 1. The decrease of the SFRD with redshift is common to the three morphological types but it is stronger for bulge-dominated systems. Star- forming bulgeless systems are mostly located in regions of low to intermediate galaxy densities (Σ ∼ 1 − 4 Mpc−2) typical of field-like and filament-like environments and their specific star formation rates (sSFRs) do not appear to vary strongly with local galaxy density. Only few bulgeless galaxies in our sample have high (sSFR > 10−9 yr−1) and these are mainly low-mass systems. Above M∗ ∼ 1010 M⊙ bulgeless are evolving at a “normal” rate (10−9 yr−1 < sSFR <10−10 yr−1) and in the absence of an external trigger (i.e. mergers/strong interactions) they might not be able to develop a central classical bulge.",
keywords = "galaxies: evolution, galaxies: star formation, galaxies: structure, galaxies: bulges, galaxies: luminosity function, mass function",
author = "Marco Grossi and Cristina Fernandes and David Sobral and J. Afonso and Ana Paulino-Afonso",
note = "This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version Marco Grossi, Cristina A C Fernandes, David Sobral, Jos{\'e} Afonso, Eduardo Telles, Luca Bizzocchi, Ana Paulino-Afonso, Israel Matute; Bulgeless galaxies in the COSMOS field: environment and star formation evolution at z < 1, Monthly Notices of the Royal Astronomical Society, Volume 475, Issue 1, 21 March 2018, Pages 735–747, https://doi.org/10.1093/mnras/stx3165 is available online at: https://academic.oup.com/mnras/article/475/1/735/4712233",
year = "2018",
month = mar,
day = "21",
doi = "10.1093/mnras/stx3165",
language = "English",
volume = "475",
pages = "735--747",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "OXFORD UNIV PRESS",
number = "1",

}

RIS

TY - JOUR

T1 - Bulgeless galaxies in the COSMOS field

T2 - environment and star formation evolution at z < 1

AU - Grossi, Marco

AU - Fernandes, Cristina

AU - Sobral, David

AU - Afonso, J.

AU - Paulino-Afonso, Ana

N1 - This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Monthly Notices of the Royal Astronomical Society following peer review. The definitive publisher-authenticated version Marco Grossi, Cristina A C Fernandes, David Sobral, José Afonso, Eduardo Telles, Luca Bizzocchi, Ana Paulino-Afonso, Israel Matute; Bulgeless galaxies in the COSMOS field: environment and star formation evolution at z < 1, Monthly Notices of the Royal Astronomical Society, Volume 475, Issue 1, 21 March 2018, Pages 735–747, https://doi.org/10.1093/mnras/stx3165 is available online at: https://academic.oup.com/mnras/article/475/1/735/4712233

PY - 2018/3/21

Y1 - 2018/3/21

N2 - Combining the catalogue of galaxy morphologies in the COSMOS field and the sample of Hα emitters at redshifts z = 0.4 and z = 0.84 of the HiZELS survey, we selected ∼ 220 star-forming bulgeless systems (S ́ersic index n ≤ 1.5) at both epochs. We present their star formation properties and we investigate their contribution to the star for- mation rate function (SFRF) and global star formation rate density (SFRD) at z < 1. For comparison, we also analyse Hα emitters with more structurally evolved mor- phologies that we split into two classes according to their S ́ersic index n: intermediate (1.5 < n ≤ 3) and bulge-dominated (n > 3). At both redshifts the SFRF is dominated by the contribution of bulgeless galaxies and we show that they account for more than 60% of the cosmic SFRD at z < 1. The decrease of the SFRD with redshift is common to the three morphological types but it is stronger for bulge-dominated systems. Star- forming bulgeless systems are mostly located in regions of low to intermediate galaxy densities (Σ ∼ 1 − 4 Mpc−2) typical of field-like and filament-like environments and their specific star formation rates (sSFRs) do not appear to vary strongly with local galaxy density. Only few bulgeless galaxies in our sample have high (sSFR > 10−9 yr−1) and these are mainly low-mass systems. Above M∗ ∼ 1010 M⊙ bulgeless are evolving at a “normal” rate (10−9 yr−1 < sSFR <10−10 yr−1) and in the absence of an external trigger (i.e. mergers/strong interactions) they might not be able to develop a central classical bulge.

AB - Combining the catalogue of galaxy morphologies in the COSMOS field and the sample of Hα emitters at redshifts z = 0.4 and z = 0.84 of the HiZELS survey, we selected ∼ 220 star-forming bulgeless systems (S ́ersic index n ≤ 1.5) at both epochs. We present their star formation properties and we investigate their contribution to the star for- mation rate function (SFRF) and global star formation rate density (SFRD) at z < 1. For comparison, we also analyse Hα emitters with more structurally evolved mor- phologies that we split into two classes according to their S ́ersic index n: intermediate (1.5 < n ≤ 3) and bulge-dominated (n > 3). At both redshifts the SFRF is dominated by the contribution of bulgeless galaxies and we show that they account for more than 60% of the cosmic SFRD at z < 1. The decrease of the SFRD with redshift is common to the three morphological types but it is stronger for bulge-dominated systems. Star- forming bulgeless systems are mostly located in regions of low to intermediate galaxy densities (Σ ∼ 1 − 4 Mpc−2) typical of field-like and filament-like environments and their specific star formation rates (sSFRs) do not appear to vary strongly with local galaxy density. Only few bulgeless galaxies in our sample have high (sSFR > 10−9 yr−1) and these are mainly low-mass systems. Above M∗ ∼ 1010 M⊙ bulgeless are evolving at a “normal” rate (10−9 yr−1 < sSFR <10−10 yr−1) and in the absence of an external trigger (i.e. mergers/strong interactions) they might not be able to develop a central classical bulge.

KW - galaxies: evolution

KW - galaxies: star formation

KW - galaxies: structure

KW - galaxies: bulges

KW - galaxies: luminosity function

KW - mass function

U2 - 10.1093/mnras/stx3165

DO - 10.1093/mnras/stx3165

M3 - Journal article

VL - 475

SP - 735

EP - 747

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 1

ER -