Sökning: onr:"swepub:oai:DiVA.org:uu-396695" >
Balmer breaks in si...
Balmer breaks in simulated galaxies at z > 6
-
- Binggeli, Christian (författare)
- Uppsala universitet,Observationell astrofysik
-
- Zackrisson, Erik (författare)
- Uppsala universitet,Observationell astrofysik
-
- Ma, Xiangcheng (författare)
- Univ Calif Berkeley, Dept Astron, 501 Campbell Hall 3411, Berkeley, CA 94720 USA
-
visa fler...
-
- Inoue, Akio K. (författare)
- Osaka Sangyo Univ, Fac Design Technol, Dept Environm Sci & Technol, 3-1-1 Nagaito, Daito, Osaka 5748530, Japan;Waseda Univ, Fac Sci & Engn, Dept Phys, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan;Waseda Univ, Fac Sci & Engn, Res Inst Sci & Engn, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan
-
- Vikaeus, Anton (författare)
- Uppsala universitet,Observationell astrofysik
-
- Hashimoto, Takuya (författare)
- Osaka Sangyo Univ, Fac Design Technol, Dept Environm Sci & Technol, 3-1-1 Nagaito, Daito, Osaka 5748530, Japan;Waseda Univ, Fac Sci & Engn, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan;Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
-
- Mawatari, Ken (författare)
- Osaka Sangyo Univ, Fac Design Technol, Dept Environm Sci & Technol, 3-1-1 Nagaito, Daito, Osaka 5748530, Japan;Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan
-
- Shimizu, Ikkoh (författare)
- Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan;Osaka Univ, Dept Earth & Space Sci, Theoret Astrophys, 1-1 Machikaneyama, Toyonaka, Osaka 5600043, Japan
-
- Ceverino, Daniel (författare)
- Univ Copenhagen, Niels Bohr Inst, Cosm Dawn Ctr DAWN, Lyngbyvej 2, DK-2100 Copenhagen O, Denmark;Univ Copenhagen, Niels Bohr Inst, Lyngbyvej 2, DK-2100 Copenhagen O, Denmark;Heidelberg Univ, Inst Theoret Astrophys, Zentrum Astron, Albert Ueberle Str 2, D-69120 Heidelberg, Germany
-
visa färre...
-
(creator_code:org_t)
- 2019-09-05
- 2019
- Engelska.
-
Ingår i: Monthly notices of the Royal Astronomical Society. - : OXFORD UNIV PRESS. - 0035-8711 .- 1365-2966. ; 489:3, s. 3827-3835
- Relaterad länk:
-
https://arxiv.org/pd...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Photometric observations of the spectroscopically confirmed z approximate to 9.1 galaxy MACS1149-JD1 have indicated the presence of a prominent Balmer break in its spectral energy distribution, which may be interpreted as due to very large fluctuations in its past star formation activity. In this paper, we investigate to what extent contemporary simulations of high-redshift galaxies produce star formation rate variations sufficiently large to reproduce the observed Balmer break of MACS1149-JD1. We find that several independent galaxy simulations are unable to account for Balmer breaks of the inferred size, suggesting that MACS1149-JD1 either must be a very rare type of object or that our simulations are missing some key ingredient. We present predictions of spectroscopic Balmer break strength distributions for z approximate to 7-9 galaxies that may be tested through observations with the upcoming James Webb Space Telescope and also discuss the impact that various assumptions on dust reddening, Lyman continuum leakage, and deviations from a standard stellar initial mass function would have on the results.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- galaxies: evolution
- galaxies: high-redshift
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas