Search: onr:"swepub:oai:research.chalmers.se:d143ee52-835d-460e-89b9-092f53d00fd5" > The ramp-up of inte...
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000 | 03812naa a2200445 4500 | |
001 | oai:research.chalmers.se:d143ee52-835d-460e-89b9-092f53d00fd5 | |
003 | SwePub | |
008 | 211105s2021 | |||||||||||000 ||eng| | |
024 | 7 | a https://research.chalmers.se/publication/5269402 URI |
024 | 7 | a https://doi.org/10.1038/s41550-021-01515-92 DOI |
040 | a (SwePub)cth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Franco, Maximilianu University of Hertfordshire4 aut |
245 | 1 0 | a The ramp-up of interstellar medium enrichment at z > 4 |
264 | c 2021-11-04 | |
264 | 1 | b Springer Science and Business Media LLC,c 2021 |
520 | a Fluorine is one of the most interesting elements for nuclear and stellar astrophysics1,2. Fluorine abundance was first measured for stars other than the Sun in 19921, then for a handful of metal-poor stars3, which are likely to have formed in the early Universe. The main production sites of fluorine are under debate and include asymptotic giant branch stars, the ν-process in core-collapse supernovae, and Wolf–Rayet stars4,5,6,7,8,9,10. Due to the difference in the mass and lifetime of progenitor stars, high-redshift observations of fluorine can help constrain the mechanism of fluorine production in massive galaxies. Here, we report the detection of HF (signal-to-noise ratio of 8) in absorption in a gravitationally lensed dusty star-forming galaxy at redshift z = 4.4 with NHF/NH2NH2 as high as ~2 × 10−9, indicating a very quick ramp-up of the chemical enrichment in this high-z galaxy. At z = 4.4, asymptotic giant branch stars of a few solar masses are very unlikely to dominate the enrichment. Instead, we show that Wolf–Rayet stars are required to produce the observed fluorine abundance at this time, with other production mechanisms becoming important at later times. These observations therefore provide an insight into the underlying processes driving the ramp-up phase of chemical enrichment alongside rapid stellar mass assembly in a young massive galaxy. | |
650 | 7 | a NATURVETENSKAPx Kemix Analytisk kemi0 (SwePub)104012 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Chemical Sciencesx Analytical Chemistry0 (SwePub)104012 hsv//eng |
650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
650 | 7 | a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geokemi0 (SwePub)105062 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geochemistry0 (SwePub)105062 hsv//eng |
700 | 1 | a Coppin, K. E. K.u University of Hertfordshire4 aut |
700 | 1 | a Geach, J. E.u University of Hertfordshire4 aut |
700 | 1 | a Kobayashi, C.u University of Hertfordshire4 aut |
700 | 1 | a Chapman, S. C.u Dalhousie University4 aut |
700 | 1 | a Yang, Chentao,d 1988u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)chentao |
700 | 1 | a Gonzalez-Alfonso, E.u Universidad de Alcala,University of Alcalá4 aut |
700 | 1 | a Spilker, Justinu The University of Texas at Austin, USA4 aut |
700 | 1 | a Cooray, A.u University of California4 aut |
700 | 1 | a Michalowski, M. J.u Uniwersytet im. Adama Mickiewicza w Poznaniu,Adam Mickiewicz University in Poznań4 aut |
710 | 2 | a University of Hertfordshireb Dalhousie University4 org |
773 | 0 | t Nature Astronomyd : Springer Science and Business Media LLCg 5, s. 1240-1246q 5<1240-1246x 2397-3366 |
856 | 4 | u https://arxiv.org/pdf/2111.03074.pdf |
856 | 4 8 | u https://research.chalmers.se/publication/526940 |
856 | 4 8 | u https://doi.org/10.1038/s41550-021-01515-9 |
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