Timing the Evolution of the Galactic Disk with NGC 6791: An Open Cluster with Peculiar High-alpha Chemistry as Seen by APOGEE

Simple item page
dc.contributor.authorLinden, Sean T.
dc.contributor.authorPryal, Matthew
dc.contributor.authorHayes, Christian R.
dc.contributor.authorTroup, Nicholas W.
dc.contributor.authorMajewski, Steven R.
dc.contributor.authorAndrews, Brett H.
dc.contributor.authorBeers, Timothy C.
dc.contributor.authorCarrera, Ricardo
dc.contributor.authorCunha, Katia
dc.contributor.authorFernandez Trincado, J. G.
dc.contributor.authorFrinchaboy, Peter
dc.contributor.authorGeisler, Doug
dc.contributor.authorLane, Richard R.
dc.contributor.authorNitschelm, Christian
dc.contributor.authorPan, Kaike
dc.contributor.authorAllende Prieto, Carlos
dc.contributor.authorRoman Lopes, Alexandre
dc.contributor.authorSmith, Verne V.
dc.contributor.authorSobeck, Jennifer
dc.contributor.authorTang, Baitian
dc.contributor.authorVillanova, Sandro
dc.contributor.authorZasowski, Gail
dc.date.accessioned2024-01-10T13:43:58Z
dc.date.available2024-01-10T13:43:58Z
dc.date.issued2017
dc.description.abstractWe utilize elemental-abundance information for Galactic red giant stars in five open clusters (NGC 7789, NGC 6819, M67, NGC 188, and NGC 6791) from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) DR13 data set to age-date the chemical evolution of the high- and low-alpha element sequences of the Milky Way (MW). Key to this time-stamping is the cluster NGC 6791, whose stellar members have mean abundances that place it in the high-alpha, high-[Fe/H] region of the [alpha/Fe]-[Fe/H] plane. Based on the cluster's age (similar to 8 Gyr), Galactocentric radius, and height above the Galactic plane, as well as comparable chemistry reported for APOGEE stars in Baade's Window, we suggest that the two most likely origins for NGC 6791 are as an original part of the thick disk, or as a former member of the Galactic bulge. Moreover, because NGC 6791 lies at the high-metallicity end ([Fe/H] similar to 0.4) of the high-alpha sequence, the age of NGC 6791 places a limit on the youngest age of stars in the high-metallicity, high-alpha sequence for the cluster's parent population (i.e., either the bulge or the disk). In a similar way, we can also use the age and chemistry of NGC 188 to set a limit of similar to 7 Gyr on the oldest age of the low-alpha sequence of the MW. Therefore, NGC 6791 and NGC 188 are potentially a pair of star clusters that bracket both the timing and the duration of an important transition point in the chemical history of the MW.
dc.description.funderAlfred P Sloan Foundation
dc.description.funderUS Department of Energy Office of Science
dc.description.funderCenter for High-Performance Computing at the University of Utah
dc.description.funderSpanish Ministry of Economy and Competiviness
dc.description.funderNational Science Foundation
dc.description.funderCentre National dEtudes Spatiales (CNES
dc.description.funderRegion de Franche-Comte
dc.description.funderFrench Programme National de Cosmologie et Galaxies (PNCG)
dc.description.funderChilean BASAL Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA)
dc.description.funderDirect For Mathematical & Physical Scien
dc.description.funderDivision Of Astronomical Sciences
dc.description.funderDivision Of Physics
dc.fechaingreso.objetodigital2024-05-30
dc.format.extent14 páginas
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-4357/aa6f17
dc.identifier.eissn1538-4357
dc.identifier.issn0004-637X
dc.identifier.urihttps://doi.org/10.3847/1538-4357/aa6f17
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78805
dc.identifier.wosidWOS:000403167700005
dc.information.autorucFísica;Lane R;S/I;1021384
dc.issue.numero1
dc.language.isoen
dc.nota.accesoContenido parcial
dc.publisherIOP PUBLISHING LTD
dc.revistaASTROPHYSICAL JOURNAL
dc.rightsacceso restringido
dc.subjectgalaxy: disk
dc.subjectgalaxy: evolution
dc.subjectgalaxy: stellar content
dc.subjectopen clusters and associations: individual (NGC 6791, NGC 188)
dc.subjectstars: abundances
dc.subjectOLD OPEN CLUSTERS
dc.subjectMILKY-WAY DISK
dc.subjectSTAR-FORMATION HISTORIES
dc.subjectH-BAND SPECTROSCOPY
dc.subjectG-DWARF STARS
dc.subjectCHEMICAL EVOLUTION
dc.subjectTHICK DISK
dc.subjectFAINT STARS
dc.subjectELEMENTAL ABUNDANCE
dc.subjectMETAL-RICH
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleTiming the Evolution of the Galactic Disk with NGC 6791: An Open Cluster with Peculiar High-alpha Chemistry as Seen by APOGEE
dc.typeartículo
dc.volumen842
sipa.codpersvinculados1021384
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Timing the evolution of the galactic disk with NGC 6791 - An open cluster with peculiar high-alpha chemistry as seen by APOGEE.pdf
Size:
3.28 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Artículos de revistas