(WFRF:(Krause Thomas))
Sökning: (WFRF:(Krause Thomas)) > (2020-2024) > 15NH3 in the atmosp...
LIBRIS Formathandbok (Information om MARC21)
| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 04355naa a2200781 4500 | |
| 001 | oai:DiVA.org:su-227683 | |
| 003 | SwePub | |
| 008 | 240405s2023 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-2276832 URI |
| 024 | 7 | a https://doi.org/10.1038/s41586-023-06813-y2 DOI |
| 040 | a (SwePub)su | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Barrado, David4 aut |
| 245 | 1 0 | a 15NH3 in the atmosphere of a cool brown dwarf |
| 264 | 1 | c 2023 |
| 338 | a print2 rdacarrier | |
| 520 | a Brown dwarfs serve as ideal laboratories for studying the atmospheres of giant exoplanets on wide orbits, as the governing physical and chemical processes within them are nearly identical. Understanding the formation of gas-giant planets is challenging, often involving the endeavour to link atmospheric abundance ratios, such as the carbon-to-oxygen (C/O) ratio, to formation scenarios. However, the complexity of planet formation requires further tracers, as the unambiguous interpretation of the measured C/O ratio is fraught with complexity. Isotope ratios, such as deuterium to hydrogen and 14N/15N, offer a promising avenue to gain further insight into this formation process, mirroring their use within the Solar System. For exoplanets, only a handful of constraints on 12C/13C exist, pointing to the accretion of 13C-rich ice from beyond the CO iceline of the disks. Here we report on the mid-infrared detection of the 14NH3 and 15NH3 isotopologues in the atmosphere of a cool brown dwarf with an effective temperature of 380 K in a spectrum taken with the Mid-Infrared Instrument (MIRI) of JWST. As expected, our results reveal a 14N/15N value consistent with star-like formation by gravitational collapse, demonstrating that this ratio can be accurately constrained. Because young stars and their planets should be more strongly enriched in the 15N isotope, we expect that 15NH3 will be detectable in several cold, wide-separation exoplanets. | |
| 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 |
| 700 | 1 | a Mollière, Paul4 aut |
| 700 | 1 | a Patapis, Polychronis4 aut |
| 700 | 1 | a Min, Michiel4 aut |
| 700 | 1 | a Tremblin, Pascal4 aut |
| 700 | 1 | a Ardevol Martinez, Francisco4 aut |
| 700 | 1 | a Whiteford, Niall4 aut |
| 700 | 1 | a Vasist, Malavika4 aut |
| 700 | 1 | a Argyriou, Ioannis4 aut |
| 700 | 1 | a Samland, Matthias4 aut |
| 700 | 1 | a Lagage, Pierre-Olivier4 aut |
| 700 | 1 | a Decin, Leen4 aut |
| 700 | 1 | a Waters, Rens4 aut |
| 700 | 1 | a Henning, Thomas4 aut |
| 700 | 1 | a Morales-Calderón, María4 aut |
| 700 | 1 | a Guedel, Manuel4 aut |
| 700 | 1 | a Vandenbussche, Bart4 aut |
| 700 | 1 | a Absil, Olivier4 aut |
| 700 | 1 | a Baudoz, Pierre4 aut |
| 700 | 1 | a Boccaletti, Anthony4 aut |
| 700 | 1 | a Bouwman, Jeroen4 aut |
| 700 | 1 | a Cossou, Christophe4 aut |
| 700 | 1 | a Coulais, Alain4 aut |
| 700 | 1 | a Crouzet, Nicolas4 aut |
| 700 | 1 | a Gastaud, René4 aut |
| 700 | 1 | a Glasse, Alistair4 aut |
| 700 | 1 | a Glauser, Adrian M.4 aut |
| 700 | 1 | a Kamp, Inga4 aut |
| 700 | 1 | a Kendrew, Sarah4 aut |
| 700 | 1 | a Krause, Oliver4 aut |
| 700 | 1 | a Lahuis, Fred4 aut |
| 700 | 1 | a Mueller, Michael4 aut |
| 700 | 1 | a Olofsson, Göran,d 1944-u Stockholms universitet,Institutionen för astronomi4 aut0 (Swepub:su)olofsson |
| 700 | 1 | a Pye, John4 aut |
| 700 | 1 | a Rouan, Daniel4 aut |
| 700 | 1 | a Royer, Pierre4 aut |
| 700 | 1 | a Scheithauer, Silvia4 aut |
| 700 | 1 | a Waldmann, Ingo4 aut |
| 700 | 1 | a Colina, Luis4 aut |
| 700 | 1 | a van Dishoeck, Ewine F.4 aut |
| 700 | 1 | a Ray, Tom4 aut |
| 700 | 1 | a Östlin, Göran,d 1968-u Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)ostlin |
| 700 | 1 | a Wright, Gillian4 aut |
| 710 | 2 | a Stockholms universitetb Institutionen för astronomi4 org |
| 773 | 0 | t Natureg 624:7991, s. 263-266q 624:7991<263-266x 0028-0836x 1476-4687 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-227683 |
| 856 | 4 8 | u https://doi.org/10.1038/s41586-023-06813-y |
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