Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/31169
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Nogueras-Lara, Francisco | en_US |
dc.contributor.author | Schödel, Rainer | en_US |
dc.contributor.author | Gallego-Calvente, Aurelia Teresa | en_US |
dc.contributor.author | Gallego-Cano, Eulalia | en_US |
dc.contributor.author | Shahzamanian, Banafsheh | en_US |
dc.contributor.author | Dong, Hui | en_US |
dc.contributor.author | Neumayer, Nadine | en_US |
dc.contributor.author | Hilker, Michael | en_US |
dc.contributor.author | Najarro, Francisco | en_US |
dc.contributor.author | Nishiyama, Shogo | en_US |
dc.contributor.author | Feldmeier-Krause, Anja | en_US |
dc.contributor.author | Girard, Julien H. V. | en_US |
dc.contributor.author | CASSISI, Santi | en_US |
dc.date.accessioned | 2021-11-26T14:58:47Z | - |
dc.date.available | 2021-11-26T14:58:47Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 2397-3366 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/31169 | - |
dc.description.abstract | The nuclear disk is a dense stellar structure at the centre of the Milky Way, with a radius of ~150 pc (ref. <SUP>1</SUP>). It has been a place of intense star formation in the past several tens of millions of years<SUP>1-3</SUP>, but its overall formation history has remained unknown<SUP>2</SUP>. Here, we report that the bulk of its stars formed at least 8 Gyr ago. After a long period of quiescence, a starburst event followed about 1 Gyr ago that formed roughly 5% of its mass within ~100 Myr, in what may arguably have been one of the most energetic events in the history of the Milky Way. Star formation continued subsequently on a lower level, creating a few per cent of the stellar mass in the past ~500 Myr, with an increased rate up to ~30 Myr ago. Our findings contradict the previously accepted paradigm of quasi-continuous star formation at the Galactic Centre<SUP>4</SUP>. The long quiescent phase agrees with the overall quiescent history of the Milky Way<SUP>2,5</SUP> and suggests that our Galaxy's bar may not have existed until recently, or that gas transport through the bar was extremely inefficient during a long stretch of the Milky Way's life. Consequently, the central black hole may have acquired most of its mass already in the early days of the Milky Way. | en_US |
dc.language.iso | eng | en_US |
dc.title | Early formation and recent starburst activity in the nuclear disk of the Milky Way | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1038/s41550-019-0967-9 | en_US |
dc.identifier.url | https://www.nature.com/articles/s41550-019-0967-9 | en_US |
dc.relation.medium | ELETTRONICO | en_US |
dc.relation.volume | 4 | en_US |
dc.relation.firstpage | 377 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | DEU | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | NATURE ASTRONOMY | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2020NatAs...4..377N | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 2397-3366 | - |
crisitem.journal.ance | E240167 | - |
crisitem.author.dept | O.A. Abruzzo | - |
crisitem.author.orcid | 0000-0001-5870-3735 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1910.06968.pdf | preprint | 3.89 MB | Adobe PDF | View/Open |
s41550-019-0967-9.pdf | [Administrators only] | 2.19 MB | Adobe PDF |
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