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45 Publications
2025 | Published | Journal Article | IST-REx-ID: 20217 | 
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MIDIS: MIRI uncovers Virgil, the first Little Red Dot with clear detection of its host galaxy at z ≃ 6.6
Iani E, Rinaldi P, Caputi KI, Annunziatella M, Langeroodi D, Melinder J, Pérez-González PG, Álvarez-Márquez J, Boogaard LA, Bosman SEI, Costantin L, Moutard T, Colina L, Östlin G, Greve TR, Wright G, Alonso-Herrero A, Bik A, Gillman S, Crespo Gómez A, Hjorth J, Kendrew S, Labiano A, Pye JP, Tikkanen TV, Walter F, Güdel M, Henning T, Van Der Werf PP. 2025. MIDIS: MIRI uncovers Virgil, the first Little Red Dot with clear detection of its host galaxy at z ≃ 6.6. Astrophysical Journal. 989(2), 160.
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Iani E, Rinaldi P, Caputi KI, Annunziatella M, Langeroodi D, Melinder J, Pérez-González PG, Álvarez-Márquez J, Boogaard LA, Bosman SEI, Costantin L, Moutard T, Colina L, Östlin G, Greve TR, Wright G, Alonso-Herrero A, Bik A, Gillman S, Crespo Gómez A, Hjorth J, Kendrew S, Labiano A, Pye JP, Tikkanen TV, Walter F, Güdel M, Henning T, Van Der Werf PP. 2025. MIDIS: MIRI uncovers Virgil, the first Little Red Dot with clear detection of its host galaxy at z ≃ 6.6. Astrophysical Journal. 989(2), 160.
2025 | Published | Journal Article | IST-REx-ID: 20192 |
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21 Balmer Jump Street: The nebular continuum at high redshift and implications for the bright galaxy problem, UV continuum slopes, and early stellar populations
H. Katz, A.J. Cameron, A. Saxena, L. Barrufet, N. Choustikov, N.J. Cleri, A. De Graaff, R.S. Ellis, R.A.E. Fosbury, K.E. Heintz, M. Maseda, J.J. Matthee, I. Mcconachie, P.A. Oesch, The Open Journal of Astrophysics 8 (2025).
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H. Katz, A.J. Cameron, A. Saxena, L. Barrufet, N. Choustikov, N.J. Cleri, A. De Graaff, R.S. Ellis, R.A.E. Fosbury, K.E. Heintz, M. Maseda, J.J. Matthee, I. Mcconachie, P.A. Oesch, The Open Journal of Astrophysics 8 (2025).
2025 | Published | Journal Article | IST-REx-ID: 20255 |
The first billion years according to JWST
Adamo A, Atek H, Bagley MB, Bañados E, Barrow KSS, Berg DA, Bezanson R, Bradač M, Brammer G, Carnall AC, Chisholm J, Coe D, Dayal P, Eisenstein DJ, Eldridge JJ, Ferrara A, Fujimoto S, Graaff AD, Habouzit M, Hutchison TA, Kartaltepe JS, Kassin SA, Kriek M, Labbé I, Maiolino R, Marques-Chaves R, Maseda MV, Mason C, Matthee JJ, Mcquinn KBW, Meynet G, Naidu RP, Oesch PA, Pentericci L, Pérez-González PG, Rigby JR, Roberts-Borsani G, Schaerer D, Shapley AE, Stark DP, Stiavelli M, Strom AL, Vanzella E, Wang F, Wilkins SM, Williams CC, Willott CJ, Wylezalek D, Nota A. 2025. The first billion years according to JWST. Nature Astronomy. 9(8), 1134–1147.
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Adamo A, Atek H, Bagley MB, Bañados E, Barrow KSS, Berg DA, Bezanson R, Bradač M, Brammer G, Carnall AC, Chisholm J, Coe D, Dayal P, Eisenstein DJ, Eldridge JJ, Ferrara A, Fujimoto S, Graaff AD, Habouzit M, Hutchison TA, Kartaltepe JS, Kassin SA, Kriek M, Labbé I, Maiolino R, Marques-Chaves R, Maseda MV, Mason C, Matthee JJ, Mcquinn KBW, Meynet G, Naidu RP, Oesch PA, Pentericci L, Pérez-González PG, Rigby JR, Roberts-Borsani G, Schaerer D, Shapley AE, Stark DP, Stiavelli M, Strom AL, Vanzella E, Wang F, Wilkins SM, Williams CC, Willott CJ, Wylezalek D, Nota A. 2025. The first billion years according to JWST. Nature Astronomy. 9(8), 1134–1147.
2025 | Published | Journal Article | IST-REx-ID: 20294 |
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No [C II] or dust detection in two Little Red Dots at zspec > 7
Xiao M, Oesch PA, Bing L, Elbaz D, Matthee JJ, Fudamoto Y, Fujimoto S, Marques-Chaves R, Williams CC, Dessauges-Zavadsky M, Valentino F, Brammer G, Covelo-Paz A, Daddi E, Fynbo JPU, Gillman S, Ginolfi M, Giovinazzo E, Greene JE, Gu Q, Illingworth G, Inayoshi K, Kokorev V, Meyer RA, Naidu RP, Reddy NA, Schaerer D, Shapley A, Stefanon M, Steinhardt CL, Setton DJ, Vestergaard M, Wang T. 2025. No [C II] or dust detection in two Little Red Dots at zspec > 7. Astronomy and Astrophysics. 700, A231.
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Xiao M, Oesch PA, Bing L, Elbaz D, Matthee JJ, Fudamoto Y, Fujimoto S, Marques-Chaves R, Williams CC, Dessauges-Zavadsky M, Valentino F, Brammer G, Covelo-Paz A, Daddi E, Fynbo JPU, Gillman S, Ginolfi M, Giovinazzo E, Greene JE, Gu Q, Illingworth G, Inayoshi K, Kokorev V, Meyer RA, Naidu RP, Reddy NA, Schaerer D, Shapley A, Stefanon M, Steinhardt CL, Setton DJ, Vestergaard M, Wang T. 2025. No [C II] or dust detection in two Little Red Dots at zspec > 7. Astronomy and Astrophysics. 700, A231.
2025 | Published | Journal Article | IST-REx-ID: 20406 |
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A remarkable ruby: Absorption in dense gas, rather than evolved stars, drives the extreme Balmer break of a little red dot at z = 3.5
De Graaff A, Rix HW, Naidu RP, Labbé I, Wang B, Leja J, Matthee JJ, Katz H, Greene JE, Hviding RE, Baggen J, Bezanson R, Boogaard LA, Brammer G, Dayal P, Van Dokkum P, Goulding AD, Hirschmann M, Maseda MV, Mcconachie I, Miller TB, Nelson E, Oesch PA, Setton DJ, Shivaei I, Weibel A, Whitaker KE, Williams CC. 2025. A remarkable ruby: Absorption in dense gas, rather than evolved stars, drives the extreme Balmer break of a little red dot at z = 3.5. Astronomy and Astrophysics. 701, A168.
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De Graaff A, Rix HW, Naidu RP, Labbé I, Wang B, Leja J, Matthee JJ, Katz H, Greene JE, Hviding RE, Baggen J, Bezanson R, Boogaard LA, Brammer G, Dayal P, Van Dokkum P, Goulding AD, Hirschmann M, Maseda MV, Mcconachie I, Miller TB, Nelson E, Oesch PA, Setton DJ, Shivaei I, Weibel A, Whitaker KE, Williams CC. 2025. A remarkable ruby: Absorption in dense gas, rather than evolved stars, drives the extreme Balmer break of a little red dot at z = 3.5. Astronomy and Astrophysics. 701, A168.
2025 | Published | Journal Article | IST-REx-ID: 20425 |
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The light echo of a high-redshift quasar mapped with Lyα tomography
A.C. Eilers, M. Yue, J.J. Matthee, J.F. Hennawi, F.B. Davies, R.A. Simcoe, R. Teague, R. Bordoloi, G. Brammer, Y. Kang, D. Kashino, R. Mackenzie, R.P. Naidu, B. Navarrete, Astrophysical Journal Letters 991 (2025).
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A.C. Eilers, M. Yue, J.J. Matthee, J.F. Hennawi, F.B. Davies, R.A. Simcoe, R. Teague, R. Bordoloi, G. Brammer, Y. Kang, D. Kashino, R. Mackenzie, R.P. Naidu, B. Navarrete, Astrophysical Journal Letters 991 (2025).
2025 | Published | Journal Article | IST-REx-ID: 20494 |
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GA-NIFS and EIGER: A merging quasar host at z = 7 with an overmassive black hole
Marshall MA, Yue M, Eilers AC, Scholtz J, Perna M, Willott CJ, Maiolino R, Übler H, Arribas S, Bunker AJ, Charlot S, Rodríguez Del Pino B, Böker T, Carniani S, Circosta C, Cresci G, D’Eugenio F, Jones GC, Venturi G, Bordoloi R, Kashino D, Mackenzie R, Matthee JJ, Naidu R, Simcoe RA. 2025. GA-NIFS and EIGER: A merging quasar host at z = 7 with an overmassive black hole. Astronomy and Astrophysics. 702, A50.
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Marshall MA, Yue M, Eilers AC, Scholtz J, Perna M, Willott CJ, Maiolino R, Übler H, Arribas S, Bunker AJ, Charlot S, Rodríguez Del Pino B, Böker T, Carniani S, Circosta C, Cresci G, D’Eugenio F, Jones GC, Venturi G, Bordoloi R, Kashino D, Mackenzie R, Matthee JJ, Naidu R, Simcoe RA. 2025. GA-NIFS and EIGER: A merging quasar host at z = 7 with an overmassive black hole. Astronomy and Astrophysics. 702, A50.
2024 | Published | Journal Article | IST-REx-ID: 14852 |
Linking UV spectral properties of MUSE Ly α emitters at z ≳ 3 to Lyman continuum escape
I. Kramarenko, J. Kerutt, A. Verhamme, P.A. Oesch, L. Barrufet, J.J. Matthee, H. Kusakabe, I. Goovaerts, T.T. Thai, Monthly Notices of the Royal Astronomical Society 527 (2024) 9853–9871.
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I. Kramarenko, J. Kerutt, A. Verhamme, P.A. Oesch, L. Barrufet, J.J. Matthee, H. Kusakabe, I. Goovaerts, T.T. Thai, Monthly Notices of the Royal Astronomical Society 527 (2024) 9853–9871.
2024 | Published | Journal Article | IST-REx-ID: 15180 |
Little Red Dots: An abundant population of faint active galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST surveys
Matthee JJ, Naidu RP, Brammer G, Chisholm J, Eilers A-C, Goulding A, Greene J, Kashino D, Labbe I, Lilly SJ, Mackenzie R, Oesch PA, Weibel A, Wuyts S, Xiao M, Bordoloi R, Bouwens R, van Dokkum P, Illingworth G, Kramarenko I, Maseda MV, Mason C, Meyer RA, Nelson EJ, Reddy NA, Shivaei I, Simcoe RA, Yue M. 2024. Little Red Dots: An abundant population of faint active galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST surveys. The Astrophysical Journal. 963(2), 129.
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Matthee JJ, Naidu RP, Brammer G, Chisholm J, Eilers A-C, Goulding A, Greene J, Kashino D, Labbe I, Lilly SJ, Mackenzie R, Oesch PA, Weibel A, Wuyts S, Xiao M, Bordoloi R, Bouwens R, van Dokkum P, Illingworth G, Kramarenko I, Maseda MV, Mason C, Meyer RA, Nelson EJ, Reddy NA, Shivaei I, Simcoe RA, Yue M. 2024. Little Red Dots: An abundant population of faint active galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST surveys. The Astrophysical Journal. 963(2), 129.
2024 | Published | Journal Article | IST-REx-ID: 15170 |
UNCOVER spectroscopy confirms the surprising ubiquity of active galactic nuclei in red sources at z > 5
Greene JE, Labbe I, Goulding AD, Furtak LJ, Chemerynska I, Kokorev V, Dayal P, Volonteri M, Williams CC, Wang B, Setton DJ, Burgasser AJ, Bezanson R, Atek H, Brammer G, Cutler SE, Feldmann R, Fujimoto S, Glazebrook K, De Graaff A, Khullar G, Leja J, Marchesini D, Maseda MV, Matthee JJ, Miller TB, Naidu RP, Nanayakkara T, Oesch PA, Pan R, Papovich C, Price SH, Van Dokkum P, Weaver JR, Whitaker KE, Zitrin A. 2024. UNCOVER spectroscopy confirms the surprising ubiquity of active galactic nuclei in red sources at z > 5. Astrophysical Journal. 964, 39.
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Greene JE, Labbe I, Goulding AD, Furtak LJ, Chemerynska I, Kokorev V, Dayal P, Volonteri M, Williams CC, Wang B, Setton DJ, Burgasser AJ, Bezanson R, Atek H, Brammer G, Cutler SE, Feldmann R, Fujimoto S, Glazebrook K, De Graaff A, Khullar G, Leja J, Marchesini D, Maseda MV, Matthee JJ, Miller TB, Naidu RP, Nanayakkara T, Oesch PA, Pan R, Papovich C, Price SH, Van Dokkum P, Weaver JR, Whitaker KE, Zitrin A. 2024. UNCOVER spectroscopy confirms the surprising ubiquity of active galactic nuclei in red sources at z > 5. Astrophysical Journal. 964, 39.
2024 | Published | Journal Article | IST-REx-ID: 15249 |
Large-scale excess H I absorption around z ≈ 4 galaxies detected in a background galaxy spectrum in the MUSE eXtremely deep field
J.J. Matthee, C. Golling, R. Mackenzie, G. Pezzulli, S. Lilly, J. Schaye, R. Bacon, H. Kusakabe, T. Urrutia, L. Boogaard, J. Brinchmann, M.V. Maseda, T. Garel, N.F. Bouché, L. Wisotzki, Monthly Notices of the Royal Astronomical Society 529 (2024) 2794–2806.
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J.J. Matthee, C. Golling, R. Mackenzie, G. Pezzulli, S. Lilly, J. Schaye, R. Bacon, H. Kusakabe, T. Urrutia, L. Boogaard, J. Brinchmann, M.V. Maseda, T. Garel, N.F. Bouché, L. Wisotzki, Monthly Notices of the Royal Astronomical Society 529 (2024) 2794–2806.
2024 | Published | Journal Article | IST-REx-ID: 15336 |
ALMA survey of a massive node of the Cosmic Web at z ∼ 3: I. Discovery of a large overdensity of CO emitters
A. Pensabene, S. Cantalupo, C. Cicone, R. Decarli, M. Galbiati, M. Ginolfi, S. De Beer, M. Fossati, M. Fumagalli, T. Lazeyras, G. Pezzulli, A. Travascio, W. Wang, J.J. Matthee, M.V. Maseda, Astronomy and Astrophysics 684 (2024).
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A. Pensabene, S. Cantalupo, C. Cicone, R. Decarli, M. Galbiati, M. Ginolfi, S. De Beer, M. Fossati, M. Fumagalli, T. Lazeyras, G. Pezzulli, A. Travascio, W. Wang, J.J. Matthee, M.V. Maseda, Astronomy and Astrophysics 684 (2024).
2024 | Published | Journal Article | IST-REx-ID: 15405 |
EIGER. V. Characterizing the host galaxies of luminous quasars at z ≳ 6
M. Yue, A.C. Eilers, R.A. Simcoe, R. Mackenzie, J.J. Matthee, D. Kashino, R. Bordoloi, S.J. Lilly, R.P. Naidu, Astrophysical Journal 966 (2024).
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M. Yue, A.C. Eilers, R.A. Simcoe, R. Mackenzie, J.J. Matthee, D. Kashino, R. Bordoloi, S.J. Lilly, R.P. Naidu, Astrophysical Journal 966 (2024).
2024 | Published | Journal Article | IST-REx-ID: 17090 |
Strong damped Lyman-a absorption in young star-forming galaxies at redshifts 9 to 11
Heintz KE, Watson D, Brammer G, Vejlgaard S, Hutter A, Strait VB, Matthee JJ, Oesch PA, Jakobsson P, Tanvir NR, Laursen P, Naidu RP, Mason CA, Killi M, Jung I, Hsiao TYY, Abdurro’Uf U, Coe D, Haro PA, Finkelstein SL, Toft S. 2024. Strong damped Lyman-a absorption in young star-forming galaxies at redshifts 9 to 11. Science. 384(6698), 890–894.
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Heintz KE, Watson D, Brammer G, Vejlgaard S, Hutter A, Strait VB, Matthee JJ, Oesch PA, Jakobsson P, Tanvir NR, Laursen P, Naidu RP, Mason CA, Killi M, Jung I, Hsiao TYY, Abdurro’Uf U, Coe D, Haro PA, Finkelstein SL, Toft S. 2024. Strong damped Lyman-a absorption in young star-forming galaxies at redshifts 9 to 11. Science. 384(6698), 890–894.
2024 | Published | Journal Article | IST-REx-ID: 17234 |
RUBIES: Evolved stellar populations with extended formation histories at z ∼ 7-8 in candidate massive galaxies identified with JWST/NIRSpec
B. Wang, J. Leja, A. De Graaff, G.B. Brammer, A. Weibel, P. Van Dokkum, J.F.W. Baggen, K.A. Suess, J.E. Greene, R. Bezanson, N.J. Cleri, M. Hirschmann, I. Labbé, J.J. Matthee, I. Mcconachie, R.P. Naidu, E. Nelson, P.A. Oesch, D.J. Setton, C.C. Williams, Astrophysical Journal Letters 969 (2024).
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B. Wang, J. Leja, A. De Graaff, G.B. Brammer, A. Weibel, P. Van Dokkum, J.F.W. Baggen, K.A. Suess, J.E. Greene, R. Bezanson, N.J. Cleri, M. Hirschmann, I. Labbé, J.J. Matthee, I. Mcconachie, R.P. Naidu, E. Nelson, P.A. Oesch, D.J. Setton, C.C. Williams, Astrophysical Journal Letters 969 (2024).
2024 | Published | Journal Article | IST-REx-ID: 17889 |
Anatomy of an ionized bubble: NIRCam grism spectroscopy of the z = 6.6 double-peaked Lyman- α emitter COLA1 and its environment
A. Torralba-Torregrosa, J.J. Matthee, R.P. Naidu, R. Mackenzie, G. Pezzulli, A. Hutter, P. Arnalte-Mur, S. Gurung-López, S. Tacchella, P. Oesch, D. Kashino, C. Conroy, D. Sobral, Astronomy and Astrophysics 689 (2024).
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A. Torralba-Torregrosa, J.J. Matthee, R.P. Naidu, R. Mackenzie, G. Pezzulli, A. Hutter, P. Arnalte-Mur, S. Gurung-López, S. Tacchella, P. Oesch, D. Kashino, C. Conroy, D. Sobral, Astronomy and Astrophysics 689 (2024).
2024 | Published | Journal Article | IST-REx-ID: 18069 |
FRESCO: The Paschen-α star-forming sequence at cosmic noon
C. Neufeld, P. Van Dokkum, Y. Asali, A. Covelo-Paz, J. Leja, J. Lin, J.J. Matthee, P.A. Oesch, N.A. Reddy, I. Shivaei, K.E. Whitaker, S. Wuyts, G. Brammer, D. Marchesini, M.V. Maseda, R.P. Naidu, E.J. Nelson, A. Velichko, A. Weibel, M. Xiao, Astrophysical Journal 972 (2024).
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C. Neufeld, P. Van Dokkum, Y. Asali, A. Covelo-Paz, J. Leja, J. Lin, J.J. Matthee, P.A. Oesch, N.A. Reddy, I. Shivaei, K.E. Whitaker, S. Wuyts, G. Brammer, D. Marchesini, M.V. Maseda, R.P. Naidu, E.J. Nelson, A. Velichko, A. Weibel, M. Xiao, Astrophysical Journal 972 (2024).
2024 | Published | Journal Article | IST-REx-ID: 18447 |
A first look at spatially resolved star formation at 4.8 < z < 6.5 with JWST FRESCO NIRCam slitless spectroscopy
Matharu J, Nelson EJ, Brammer G, Oesch PA, Allen N, Shivaei I, Naidu RP, Chisholm J, Covelo-Paz A, Fudamoto Y, Giovinazzo E, Herard-Demanche T, Kerutt J, Kramarenko I, Marchesini D, Meyer RA, Prieto-Lyon G, Reddy N, Shuntov M, Weibel A, Wuyts S, Xiao M. 2024. A first look at spatially resolved star formation at 4.8 < z < 6.5 with JWST FRESCO NIRCam slitless spectroscopy. Astronomy and Astrophysics. 690, A64.
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Matharu J, Nelson EJ, Brammer G, Oesch PA, Allen N, Shivaei I, Naidu RP, Chisholm J, Covelo-Paz A, Fudamoto Y, Giovinazzo E, Herard-Demanche T, Kerutt J, Kramarenko I, Marchesini D, Meyer RA, Prieto-Lyon G, Reddy N, Shuntov M, Weibel A, Wuyts S, Xiao M. 2024. A first look at spatially resolved star formation at 4.8 < z < 6.5 with JWST FRESCO NIRCam slitless spectroscopy. Astronomy and Astrophysics. 690, A64.
2024 | Published | Journal Article | IST-REx-ID: 18494 |
EIGER. VI. The correlation function, host halo mass, and duty cycle of luminous quasars at z ≳ 6
A.C. Eilers, R. Mackenzie, E. Pizzati, J.J. Matthee, J.F. Hennawi, H. Zhang, R. Bordoloi, D. Kashino, S.J. Lilly, R.P. Naidu, R.A. Simcoe, M. Yue, C.S. Frenk, J.C. Helly, M. Schaller, J. Schaye, Astrophysical Journal 974 (2024).
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A.C. Eilers, R. Mackenzie, E. Pizzati, J.J. Matthee, J.F. Hennawi, H. Zhang, R. Bordoloi, D. Kashino, S.J. Lilly, R.P. Naidu, R.A. Simcoe, M. Yue, C.S. Frenk, J.C. Helly, M. Schaller, J. Schaye, Astrophysical Journal 974 (2024).
2024 | Published | Journal Article | IST-REx-ID: 18493 |
Charting the Lyman-α escape fraction in the range 2.9 < z < 6.7 and consequences for the LAE reionisation contribution
I. Goovaerts, T.T. Thai, R. Pello, P. Tuan-Anh, N. Laporte, J.J. Matthee, T. Nanayakkara, J. Pharo, Astronomy and Astrophysics 690 (2024).
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I. Goovaerts, T.T. Thai, R. Pello, P. Tuan-Anh, N. Laporte, J.J. Matthee, T. Nanayakkara, J. Pharo, Astronomy and Astrophysics 690 (2024).