Closing in on the sources of cosmic reionization: First results from the GLASS-JWST program

S. Mascia; L. Pentericci; A. Calabro; T. Treu; P. Santini; L. Yang; L. Napolitano; G. Roberts-Borsani; P. Bergamini; C. Grillo; P. Rosati; B. Vulcani; M. Castellano; K. Boyett; A. Fontana; K. Glazebrook; A. Henry; C. Mason; E. Merlin; T. Morishita; T. Nanayakkara; D. Paris; N. Roy; H. Williams; X. Wang; G. Brammer; M. Bradac; W. Chen; P. L. Kelly; A. M. Koekemoer; M. Trenti; R. A. Windhorst

doi:10.1051/0004-6361/202345866

Closing in on the sources of cosmic reionization: First results from the GLASS-JWST program

S. Mascia^*, L. Pentericci, A. Calabro, T. Treu, P. Santini, L. Yang, L. Napolitano, G. Roberts-Borsani, P. Bergamini, C. Grillo, P. Rosati, B. Vulcani, M. Castellano, K. Boyett, A. Fontana, K. Glazebrook, A. Henry, C. Mason, E. Merlin, T. MorishitaT. Nanayakkara, D. Paris, N. Roy, H. Williams, X. Wang, G. Brammer, M. Bradac, W. Chen, P. L. Kelly, A. M. Koekemoer, M. Trenti, R. A. Windhorst

^*Corresponding author for this work

The Cosmic Dawn Center

Research output: Contribution to journal › Journal article › Research › peer-review

43 Citations (Scopus)

11 Downloads (Pure)

Abstract

The escape fraction of Lyman-continuum (LyC) photons (f(esc)) is a key parameter for determining the sources of cosmic reionization at z >= 6. At these redshifts, owing to the opacity of the intergalactic medium, the LyC emission cannot be measured directly. However, LyC leakers during the epoch of reionization could be identified using indirect indicators that have been extensively tested at low and intermediate redshifts. These include a high [OIII]/[OII] flux ratio, high star-formation surface density, and compact sizes. In this work, we present observations of 29 4.5 = 6 have provided a substantial contribution to cosmic reionization.

Original language	English
Article number	A155
Journal	Astronomy & Astrophysics
Volume	672
Number of pages	11
ISSN	0004-6361
DOIs	https://doi.org/10.1051/0004-6361/202345866
Publication status	Published - 14 Apr 2023

Keywords

galaxies: evolution
galaxies: formation
early Universe
galaxies: clusters: intracluster medium
STAR-FORMING GALAXIES
LYMAN-BREAK GALAXIES
LY-ALPHA EMISSION
HIGH-REDSHIFT GALAXIES
WEBB-SPACE-TELESCOPE
C IV EMISSION
SPECTRAL SIGNATURES
CONTINUUM EMISSION
IONIZING-RADIATION
STELLAR POPULATION

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Cite this

Mascia, S., Pentericci, L., Calabro, A., Treu, T., Santini, P., Yang, L., Napolitano, L., Roberts-Borsani, G., Bergamini, P., Grillo, C., Rosati, P., Vulcani, B., Castellano, M., Boyett, K., Fontana, A., Glazebrook, K., Henry, A., Mason, C., Merlin, E., ... Windhorst, R. A. (2023). Closing in on the sources of cosmic reionization: First results from the GLASS-JWST program. Astronomy & Astrophysics, 672, [A155]. https://doi.org/10.1051/0004-6361/202345866

Closing in on the sources of cosmic reionization : First results from the GLASS-JWST program. / Mascia, S.; Pentericci, L.; Calabro, A.; Treu, T.; Santini, P.; Yang, L.; Napolitano, L.; Roberts-Borsani, G.; Bergamini, P.; Grillo, C.; Rosati, P.; Vulcani, B.; Castellano, M.; Boyett, K.; Fontana, A.; Glazebrook, K.; Henry, A.; Mason, C.; Merlin, E.; Morishita, T.; Nanayakkara, T.; Paris, D.; Roy, N.; Williams, H.; Wang, X.; Brammer, G.; Bradac, M.; Chen, W.; Kelly, P. L.; Koekemoer, A. M.; Trenti, M.; Windhorst, R. A.

In: Astronomy & Astrophysics, Vol. 672, A155, 14.04.2023.

Research output: Contribution to journal › Journal article › Research › peer-review

Mascia, S, Pentericci, L, Calabro, A, Treu, T, Santini, P, Yang, L, Napolitano, L, Roberts-Borsani, G, Bergamini, P, Grillo, C, Rosati, P, Vulcani, B, Castellano, M, Boyett, K, Fontana, A, Glazebrook, K, Henry, A, Mason, C, Merlin, E, Morishita, T, Nanayakkara, T, Paris, D, Roy, N, Williams, H, Wang, X, Brammer, G, Bradac, M, Chen, W, Kelly, PL, Koekemoer, AM, Trenti, M & Windhorst, RA 2023, 'Closing in on the sources of cosmic reionization: First results from the GLASS-JWST program', Astronomy & Astrophysics, vol. 672, A155. https://doi.org/10.1051/0004-6361/202345866

Mascia, S. ; Pentericci, L. ; Calabro, A. ; Treu, T. ; Santini, P. ; Yang, L. ; Napolitano, L. ; Roberts-Borsani, G. ; Bergamini, P. ; Grillo, C. ; Rosati, P. ; Vulcani, B. ; Castellano, M. ; Boyett, K. ; Fontana, A. ; Glazebrook, K. ; Henry, A. ; Mason, C. ; Merlin, E. ; Morishita, T. ; Nanayakkara, T. ; Paris, D. ; Roy, N. ; Williams, H. ; Wang, X. ; Brammer, G. ; Bradac, M. ; Chen, W. ; Kelly, P. L. ; Koekemoer, A. M. ; Trenti, M. ; Windhorst, R. A. / Closing in on the sources of cosmic reionization : First results from the GLASS-JWST program. In: Astronomy & Astrophysics. 2023 ; Vol. 672.

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abstract = "The escape fraction of Lyman-continuum (LyC) photons (f(esc)) is a key parameter for determining the sources of cosmic reionization at z >= 6. At these redshifts, owing to the opacity of the intergalactic medium, the LyC emission cannot be measured directly. However, LyC leakers during the epoch of reionization could be identified using indirect indicators that have been extensively tested at low and intermediate redshifts. These include a high [OIII]/[OII] flux ratio, high star-formation surface density, and compact sizes. In this work, we present observations of 29 4.5 = 6 have provided a substantial contribution to cosmic reionization.",

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T2 - First results from the GLASS-JWST program

AU - Mascia, S.

AU - Pentericci, L.

AU - Calabro, A.

AU - Treu, T.

AU - Santini, P.

AU - Yang, L.

AU - Napolitano, L.

AU - Roberts-Borsani, G.

AU - Bergamini, P.

AU - Grillo, C.

AU - Rosati, P.

AU - Vulcani, B.

AU - Castellano, M.

AU - Boyett, K.

AU - Fontana, A.

AU - Glazebrook, K.

AU - Henry, A.

AU - Mason, C.

AU - Merlin, E.

AU - Morishita, T.

AU - Nanayakkara, T.

AU - Paris, D.

AU - Roy, N.

AU - Williams, H.

AU - Wang, X.

AU - Brammer, G.

AU - Bradac, M.

AU - Chen, W.

AU - Kelly, P. L.

AU - Koekemoer, A. M.

AU - Trenti, M.

AU - Windhorst, R. A.

PY - 2023/4/14

Y1 - 2023/4/14

N2 - The escape fraction of Lyman-continuum (LyC) photons (f(esc)) is a key parameter for determining the sources of cosmic reionization at z >= 6. At these redshifts, owing to the opacity of the intergalactic medium, the LyC emission cannot be measured directly. However, LyC leakers during the epoch of reionization could be identified using indirect indicators that have been extensively tested at low and intermediate redshifts. These include a high [OIII]/[OII] flux ratio, high star-formation surface density, and compact sizes. In this work, we present observations of 29 4.5 = 6 have provided a substantial contribution to cosmic reionization.

AB - The escape fraction of Lyman-continuum (LyC) photons (f(esc)) is a key parameter for determining the sources of cosmic reionization at z >= 6. At these redshifts, owing to the opacity of the intergalactic medium, the LyC emission cannot be measured directly. However, LyC leakers during the epoch of reionization could be identified using indirect indicators that have been extensively tested at low and intermediate redshifts. These include a high [OIII]/[OII] flux ratio, high star-formation surface density, and compact sizes. In this work, we present observations of 29 4.5 = 6 have provided a substantial contribution to cosmic reionization.

KW - galaxies: evolution

KW - galaxies: formation

KW - early Universe

KW - galaxies: clusters: intracluster medium

KW - STAR-FORMING GALAXIES

KW - LYMAN-BREAK GALAXIES

KW - LY-ALPHA EMISSION

KW - HIGH-REDSHIFT GALAXIES

KW - WEBB-SPACE-TELESCOPE

KW - C IV EMISSION

KW - SPECTRAL SIGNATURES

KW - CONTINUUM EMISSION

KW - IONIZING-RADIATION

KW - STELLAR POPULATION

U2 - 10.1051/0004-6361/202345866

DO - 10.1051/0004-6361/202345866

M3 - Journal article

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SN - 0004-6361

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