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dc.contributor.authorTeixeira, P S
dc.contributor.authorAlves, J
dc.contributor.authorSicilia-Aguilar, A
dc.contributor.authorHacar, A
dc.contributor.authorScholz, A
dc.date.accessioned2021-04-19T12:30:01Z
dc.date.available2021-04-19T12:30:01Z
dc.date.issued2021-06
dc.identifier.citationTeixeira , P S , Alves , J , Sicilia-Aguilar , A , Hacar , A & Scholz , A 2021 , ' Monoceros OB4 : a new association in Gaia DR2 ' , Monthly Notices of the Royal Astronomical Society: Letters , vol. 504 , no. 1 , pp. L17–L21 . https://doi.org/10.1093/mnrasl/slab029en
dc.identifier.issn1745-3925
dc.identifier.otherPURE: 273832266
dc.identifier.otherPURE UUID: aea5fe2f-9fbc-4e32-ba4f-c3f840ac36c9
dc.identifier.otherJisc: d28c302615a041e1a728550887ccb7bb
dc.identifier.otherWOS: 000662152900004
dc.identifier.otherORCID: /0000-0002-3665-5784/work/99804723
dc.identifier.otherScopus: 85127048375
dc.identifier.urihttps://hdl.handle.net/10023/23053
dc.descriptionFunding: This project was supported by STFC grant ST/R000824/1. ASA is partly supported by STFC grant ST/S000399/1. This project has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (Grant agreement No. 851435).en
dc.description.abstractWe use Gaia DR2 data to survey the classic Monoceros OB1 region and look for the existence of a dispersed young population, co-moving with the cloud complex. An analysis of the distribution of proper motions reveals a 20-30 Myr association of young stars, about 300-400 pc away from the far side of the Mon OB1 complex, along the same general line-of-sight. We characterize the new association, Monoceros OB4, and estimate it contains between 1400 and 2500 stars, assuming a standard IMF, putting it on par in size with NGC 2264. We find from the internal proper motions that Mon OB4 is unbound and expanding. Our results seem to unveil a larger and more complex Monoceros star formation region, suggesting an elongated arrangement that seems to be at least 300 × 60 pc.
dc.format.extent5
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society: Lettersen
dc.rightsCopyright © 2021 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the author created accepted manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1093/mnrasl/slab029.en
dc.subjectISM: individual objects: Monoceros OB1 cloud complexen
dc.subjectStars: pre-main-sequenceen
dc.subjectGalaxy: open clusters and association: generalen
dc.subjectQB Astronomyen
dc.subjectQC Physicsen
dc.subjectDASen
dc.subject.lccQBen
dc.subject.lccQCen
dc.titleMonoceros OB4 : a new association in Gaia DR2en
dc.typeJournal articleen
dc.contributor.sponsorScience & Technology Facilities Councilen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. St Andrews Centre for Exoplanet Scienceen
dc.identifier.doihttps://doi.org/10.1093/mnrasl/slab029
dc.description.statusPeer revieweden
dc.identifier.grantnumberST/R00824/1en


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