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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 P Arrabal Haro, J M Rodríguez Espinosa, C Muñoz-Tuñón, D Sobral, A Lumbreras-Calle, M Boquien, A Hernán-Caballero, L Rodríguez-Muñoz, B Alcalde Pampliega, Differences and similarities of stellar populations in LAEs and LBGs at z ∼ 3.4−6.8, Monthly Notices of the Royal Astronomical Society, Volume 495, Issue 2, June 2020, Pages 1807–1824 is available online at: https://academic.oup.com/mnras/article-abstract/495/2/1807/5831076?redirectedFrom=fulltext

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Differences and similarities of stellar populations in LAEs and LBGs at z~3.4-6.8

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Differences and similarities of stellar populations in LAEs and LBGs at z~3.4-6.8. / Haro, P. Arrabal; Espinosa, J. M. Rodríguez; Muñoz-Tuñón, C.; Sobral, D.; Lumbreras-Calle, A.; Boquien, M.; Hernán-Caballero, A.; Rodríguez-Muñoz, L.; Pampliega, B. Alcalde.

In: Monthly Notices of the Royal Astronomical Society, Vol. 495, No. 2, 01.06.2020, p. 1807–1824.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Haro, PA, Espinosa, JMR, Muñoz-Tuñón, C, Sobral, D, Lumbreras-Calle, A, Boquien, M, Hernán-Caballero, A, Rodríguez-Muñoz, L & Pampliega, BA 2020, 'Differences and similarities of stellar populations in LAEs and LBGs at z~3.4-6.8', Monthly Notices of the Royal Astronomical Society, vol. 495, no. 2, pp. 1807–1824. https://doi.org/10.1093/mnras/staa1196

APA

Haro, P. A., Espinosa, J. M. R., Muñoz-Tuñón, C., Sobral, D., Lumbreras-Calle, A., Boquien, M., Hernán-Caballero, A., Rodríguez-Muñoz, L., & Pampliega, B. A. (2020). Differences and similarities of stellar populations in LAEs and LBGs at z~3.4-6.8. Monthly Notices of the Royal Astronomical Society, 495(2), 1807–1824. https://doi.org/10.1093/mnras/staa1196

Vancouver

Haro PA, Espinosa JMR, Muñoz-Tuñón C, Sobral D, Lumbreras-Calle A, Boquien M et al. Differences and similarities of stellar populations in LAEs and LBGs at z~3.4-6.8. Monthly Notices of the Royal Astronomical Society. 2020 Jun 1;495(2):1807–1824. https://doi.org/10.1093/mnras/staa1196

Author

Haro, P. Arrabal ; Espinosa, J. M. Rodríguez ; Muñoz-Tuñón, C. ; Sobral, D. ; Lumbreras-Calle, A. ; Boquien, M. ; Hernán-Caballero, A. ; Rodríguez-Muñoz, L. ; Pampliega, B. Alcalde. / Differences and similarities of stellar populations in LAEs and LBGs at z~3.4-6.8. In: Monthly Notices of the Royal Astronomical Society. 2020 ; Vol. 495, No. 2. pp. 1807–1824.

Bibtex

@article{3c64aa44ae0a4ca99bc8989dc4460079,
title = "Differences and similarities of stellar populations in LAEs and LBGs at z~3.4-6.8",
abstract = "Lyman alpha emitters (LAEs) and Lyman break galaxies (LBGs) represent the most common groups of star-forming galaxies at high z, and the differences between their inherent stellar populations (SPs) are a key factor in understanding early galaxy formation and evolution. We have run a set of SP burst-like models for a sample of 1558 sources at 3.4 < z < 6.8 from the Survey for High-z Absorption Red and Dead Sources (SHARDS) over the GOODS-N field. This work focuses on the differences between the three different observational subfamilies of our sample: LAE–LBGs, no-Ly α LBGs, and pure LAEs. Single and double SP synthetic spectra were used to model the spectral energy distributions, adopting a Bayesian information criterion to analyze under which situations a second SP is required. We find that the sources are well modelled using a single SP in ∼79 per cent of the cases. The best models suggest that pure LAEs are typically young low-mass galaxies (⁠t∼26+41−25 Myr; Mstar∼5.6+12.0−5.5×108 M⊙⁠), undergoing one of their first bursts of star formation. On the other hand, no-Ly α LBGs require older SPs (t ∼ 71 ± 12 Myr), and they are substantially more massive (Mstar ∼ 3.5 ± 1.1 × 109 M⊙). LAE–LBGs appear as the subgroup that more frequently needs the addition of a second SP, representing an old and massive galaxy caught in a strong recent star-forming episode. The relative number of sources found from each subfamily at each z supports an evolutionary scenario from pure LAEs and single SP LAE–LBGs to more massive LBGs. Stellar mass functions are also derived, finding an increase of M* with cosmic time and a possible steepening of the low-mass slope from z ∼ 6 to z ∼ 5 with no significant change to z ∼ 4. Additionally, we have derived the SFR–Mstar relation, finding an SFR∝Mβstar behaviour with negligible evolution from z ∼ 4 to z ∼ 6.",
keywords = "astro-ph.GA",
author = "Haro, {P. Arrabal} and Espinosa, {J. M. Rodr{\'i}guez} and C. Mu{\~n}oz-Tu{\~n}{\'o}n and D. Sobral and A. Lumbreras-Calle and M. Boquien and A. Hern{\'a}n-Caballero and L. Rodr{\'i}guez-Mu{\~n}oz and Pampliega, {B. Alcalde}",
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 P Arrabal Haro, J M Rodr{\'i}guez Espinosa, C Mu{\~n}oz-Tu{\~n}{\'o}n, D Sobral, A Lumbreras-Calle, M Boquien, A Hern{\'a}n-Caballero, L Rodr{\'i}guez-Mu{\~n}oz, B Alcalde Pampliega, Differences and similarities of stellar populations in LAEs and LBGs at z ∼ 3.4−6.8, Monthly Notices of the Royal Astronomical Society, Volume 495, Issue 2, June 2020, Pages 1807–1824 is available online at: https://academic.oup.com/mnras/article-abstract/495/2/1807/5831076?redirectedFrom=fulltext",
year = "2020",
month = jun,
day = "1",
doi = "10.1093/mnras/staa1196",
language = "English",
volume = "495",
pages = "1807–1824",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "OXFORD UNIV PRESS",
number = "2",

}

RIS

TY - JOUR

T1 - Differences and similarities of stellar populations in LAEs and LBGs at z~3.4-6.8

AU - Haro, P. Arrabal

AU - Espinosa, J. M. Rodríguez

AU - Muñoz-Tuñón, C.

AU - Sobral, D.

AU - Lumbreras-Calle, A.

AU - Boquien, M.

AU - Hernán-Caballero, A.

AU - Rodríguez-Muñoz, L.

AU - Pampliega, B. Alcalde

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 P Arrabal Haro, J M Rodríguez Espinosa, C Muñoz-Tuñón, D Sobral, A Lumbreras-Calle, M Boquien, A Hernán-Caballero, L Rodríguez-Muñoz, B Alcalde Pampliega, Differences and similarities of stellar populations in LAEs and LBGs at z ∼ 3.4−6.8, Monthly Notices of the Royal Astronomical Society, Volume 495, Issue 2, June 2020, Pages 1807–1824 is available online at: https://academic.oup.com/mnras/article-abstract/495/2/1807/5831076?redirectedFrom=fulltext

PY - 2020/6/1

Y1 - 2020/6/1

N2 - Lyman alpha emitters (LAEs) and Lyman break galaxies (LBGs) represent the most common groups of star-forming galaxies at high z, and the differences between their inherent stellar populations (SPs) are a key factor in understanding early galaxy formation and evolution. We have run a set of SP burst-like models for a sample of 1558 sources at 3.4 < z < 6.8 from the Survey for High-z Absorption Red and Dead Sources (SHARDS) over the GOODS-N field. This work focuses on the differences between the three different observational subfamilies of our sample: LAE–LBGs, no-Ly α LBGs, and pure LAEs. Single and double SP synthetic spectra were used to model the spectral energy distributions, adopting a Bayesian information criterion to analyze under which situations a second SP is required. We find that the sources are well modelled using a single SP in ∼79 per cent of the cases. The best models suggest that pure LAEs are typically young low-mass galaxies (⁠t∼26+41−25 Myr; Mstar∼5.6+12.0−5.5×108 M⊙⁠), undergoing one of their first bursts of star formation. On the other hand, no-Ly α LBGs require older SPs (t ∼ 71 ± 12 Myr), and they are substantially more massive (Mstar ∼ 3.5 ± 1.1 × 109 M⊙). LAE–LBGs appear as the subgroup that more frequently needs the addition of a second SP, representing an old and massive galaxy caught in a strong recent star-forming episode. The relative number of sources found from each subfamily at each z supports an evolutionary scenario from pure LAEs and single SP LAE–LBGs to more massive LBGs. Stellar mass functions are also derived, finding an increase of M* with cosmic time and a possible steepening of the low-mass slope from z ∼ 6 to z ∼ 5 with no significant change to z ∼ 4. Additionally, we have derived the SFR–Mstar relation, finding an SFR∝Mβstar behaviour with negligible evolution from z ∼ 4 to z ∼ 6.

AB - Lyman alpha emitters (LAEs) and Lyman break galaxies (LBGs) represent the most common groups of star-forming galaxies at high z, and the differences between their inherent stellar populations (SPs) are a key factor in understanding early galaxy formation and evolution. We have run a set of SP burst-like models for a sample of 1558 sources at 3.4 < z < 6.8 from the Survey for High-z Absorption Red and Dead Sources (SHARDS) over the GOODS-N field. This work focuses on the differences between the three different observational subfamilies of our sample: LAE–LBGs, no-Ly α LBGs, and pure LAEs. Single and double SP synthetic spectra were used to model the spectral energy distributions, adopting a Bayesian information criterion to analyze under which situations a second SP is required. We find that the sources are well modelled using a single SP in ∼79 per cent of the cases. The best models suggest that pure LAEs are typically young low-mass galaxies (⁠t∼26+41−25 Myr; Mstar∼5.6+12.0−5.5×108 M⊙⁠), undergoing one of their first bursts of star formation. On the other hand, no-Ly α LBGs require older SPs (t ∼ 71 ± 12 Myr), and they are substantially more massive (Mstar ∼ 3.5 ± 1.1 × 109 M⊙). LAE–LBGs appear as the subgroup that more frequently needs the addition of a second SP, representing an old and massive galaxy caught in a strong recent star-forming episode. The relative number of sources found from each subfamily at each z supports an evolutionary scenario from pure LAEs and single SP LAE–LBGs to more massive LBGs. Stellar mass functions are also derived, finding an increase of M* with cosmic time and a possible steepening of the low-mass slope from z ∼ 6 to z ∼ 5 with no significant change to z ∼ 4. Additionally, we have derived the SFR–Mstar relation, finding an SFR∝Mβstar behaviour with negligible evolution from z ∼ 4 to z ∼ 6.

KW - astro-ph.GA

U2 - 10.1093/mnras/staa1196

DO - 10.1093/mnras/staa1196

M3 - Journal article

VL - 495

SP - 1807

EP - 1824

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 2

ER -