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A core in a star-forming disc as evidence of inside-out growth in the early Universe

التفاصيل البيبلوغرافية
العنوان: A core in a star-forming disc as evidence of inside-out growth in the early Universe
المؤلفون: Baker, WM, Tacchella, S, Johnson, BD, Nelson, E, Suess, KA, D’Eugenio, F, Curti, M, de Graaff, A, Ji, Z, Maiolino, R, Robertson, B, Scholtz, J, Alberts, S, Arribas, S, Boyett, K, Bunker, AJ, Carniani, S, Charlot, S, Chen, Z, Chevallard, J, Curtis-Lake, E, Danhaive, AL, DeCoursey, C, Egami, E, Eisenstein, DJ, Endsley, R, Hausen, R, Helton, JM, Kumari, N, Looser, TJ, Maseda, MV, Puskás, D, Rieke, M, Sandles, L, Sun, F, Übler, H, Williams, CC, Willmer, CNA, Witstok, J
بيانات النشر: Springer Science and Business Media LLC
Department of Physics
//dx.doi.org/10.1038/s41550-024-02384-8
Nature Astronomy
سنة النشر: 2024
المجموعة: Apollo - University of Cambridge Repository
مصطلحات موضوعية: 5101 Astronomical Sciences, 51 Physical Sciences
الوصف: AbstractThe physical processes that establish the morphological evolution and the structural diversity of galaxies are key unknowns in extragalactic astrophysics. Here we report the finding of the morphologically mature galaxy JADES-GS+53.18343−27.79097, which existed within the first 700 million years of the Universe’s history. This star-forming galaxy with a stellar mass of 400 million solar masses consists of three components: a highly compact core with a half-light radius of less than 100 pc, an actively star-forming disc with a radius of about 400 pc and a star-forming clump, all of which show distinctive star-formation histories. The central stellar mass density of this galaxy is within a factor of 2 of the most massive present-day ellipticals, while being globally 1,000 times less massive. The radial profile of the specific star-formation rate is rising towards the outskirts. This evidence suggests a detection of the inside-out growth of a galaxy as a proto-bulge and a star-forming disc in the epoch of reionization.
نوع الوثيقة: article in journal/newspaper
وصف الملف: application/pdf
اللغة: English
Relation: https://www.repository.cam.ac.uk/handle/1810/375750
الاتاحة: https://www.repository.cam.ac.uk/handle/1810/375750
Rights: Attribution 4.0 International (CC BY 4.0) ; https://creativecommons.org/licenses/by/4.0/
رقم الانضمام: edsbas.26FF778B
قاعدة البيانات: BASE
الوصف
الوصف غير متاح.