dc.contributor.author | Debattista, Victor P. | |
dc.contributor.author | Liddicott, David J. | |
dc.contributor.author | Gonzalez, Oscar A. | |
dc.contributor.author | Beraldo e Silva, Leandro | |
dc.contributor.author | Amarante, João A. S. | |
dc.contributor.author | Lazar, Ilin | |
dc.contributor.author | Zoccali, Manuela | |
dc.contributor.author | Valenti, Elena | |
dc.contributor.author | Fisher, Deanne B. | |
dc.contributor.author | Khachaturyants, Tigran | |
dc.contributor.author | Nidever, David L. | |
dc.contributor.author | Quinn, Thomas R. | |
dc.contributor.author | Du, Min | |
dc.contributor.author | Kassin, Susan | |
dc.date.accessioned | 2023-04-17T11:45:02Z | |
dc.date.available | 2023-04-17T11:45:02Z | |
dc.date.issued | 2023-04-07 | |
dc.identifier.citation | Debattista , V P , Liddicott , D J , Gonzalez , O A , Beraldo e Silva , L , Amarante , J A S , Lazar , I , Zoccali , M , Valenti , E , Fisher , D B , Khachaturyants , T , Nidever , D L , Quinn , T R , Du , M & Kassin , S 2023 , ' The Imprint of Clump Formation at High Redshift. II. The Chemistry of the Bulge ' , The Astrophysical Journal , vol. 946 , no. 2 , 118 , pp. 1-17 . https://doi.org/10.3847/1538-4357/acbb00 | |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | Jisc: 1009677 | |
dc.identifier.other | publisher-id: apjacbb00 | |
dc.identifier.other | manuscript: acbb00 | |
dc.identifier.other | other: aas41685 | |
dc.identifier.uri | http://hdl.handle.net/2299/26176 | |
dc.description | © 2023. The Author(s). Published by the American Astronomical Society. This is an open access article distributed under the Creative Commons Attribution License, to view a copy of the license, see: https://creativecommons.org/licenses/by/4.0/ | |
dc.description.abstract | In Paper I, we showed that clumps in high-redshift galaxies, having a high star formation rate density (ΣSFR), produce disks with two tracks in the [Fe/H]–[α/Fe] chemical space, similar to that of the Milky Way’s (MW’s) thin+thick disks. Here we investigate the effect of clumps on the bulge’s chemistry. The chemistry of the MW’s bulge is comprised of a single track with two density peaks separated by a trough. We show that the bulge chemistry of an N-body + smoothed particle hydrodynamics clumpy simulation also has a single track. Star formation within the bulge is itself in the high-ΣSFR clumpy mode, which ensures that the bulge’s chemical track follows that of the thick disk at low [Fe/H] and then extends to high [Fe/H], where it peaks. The peak at low metallicity instead is comprised of a mixture of in situ stars and stars accreted via clumps. As a result, the trough between the peaks occurs at the end of the thick disk track. We find that the high-metallicity peak dominates near the mid-plane and declines in relative importance with height, as in the MW. The bulge is already rapidly rotating by the end of the clump epoch, with higher rotation at low [α/Fe]. Thus clumpy star formation is able to simultaneously explain the chemodynamic trends of the MW’s bulge, thin+thick disks, and the splash. | en |
dc.format.extent | 17 | |
dc.format.extent | 2834056 | |
dc.language.iso | eng | |
dc.relation.ispartof | The Astrophysical Journal | |
dc.subject | 310 | |
dc.subject | Galaxies and Cosmology | |
dc.subject | Astronomy and Astrophysics | |
dc.subject | Space and Planetary Science | |
dc.title | The Imprint of Clump Formation at High Redshift. II. The Chemistry of the Bulge | en |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
dc.identifier.url | http://www.scopus.com/inward/record.url?scp=85152588365&partnerID=8YFLogxK | |
rioxxterms.versionofrecord | 10.3847/1538-4357/acbb00 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |