A Chemical and Kinematical Analysis of the Intermediate-age Open Cluster IC 166 from APOGEE and Gaia DR2
Fernández-Trincado, J. G.
Smith, V. V.
García-Hernández, D. A.
Robin, A. C.
Lane, R. R.
Ivans, I. I.
Santana, F. A.
AffiliationUniv Arizona, Steward Observ
Galaxy: kinematics and dynamics
open clusters and associations: individual (IC 166)
MetadataShow full item record
PublisherIOP PUBLISHING LTD
CitationJ. Schiappacasse-Ulloa et al 2018 AJ 156 94
Rights© 2018. The American Astronomical Society.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractIC 166 is an intermediate-age open cluster (OC) (similar to 1 Gyr) that lies in the transition zone of the metallicity gradient in the outer disk. Its location, combined with our very limited knowledge of its salient features, make it an interesting object of study. We present the first high-resolution spectroscopic and precise kinematical analysis of IC 166, which lies in the outer disk with R-GC similar to 12.7 kpc. High-resolution H-band spectra were analyzed using observations from the SDSS-IV Apache Point Observatory Galactic Evolution Experiment survey. We made use of the Brussels Automatic Stellar Parameter code to provide chemical abundances based on a line-by-line approach for up to eight chemical elements (Mg, Si, Ca, Ti, Al, K, Mn, and Fe). The alpha-element (Mg, Si, Ca, and whenever available Ti) abundances, and their trends with Fe abundances have been analyzed for a total of 13 high-likelihood cluster members. No significant abundance scatter was found in any of the chemical species studied. Combining the positional, heliocentric distance, and kinematic information, we derive, for the first time, the probable orbit of IC 166 within a Galactic model including a rotating boxy bar, and found that it is likely that IC 166 formed in the Galactic disk, supporting its nature as an unremarkable Galactic OC with an orbit bound to the Galactic plane.
VersionFinal published version
SponsorsFONDECYT [3180210, 1170518, 1170121]; Chilean BASAL Centro de Excelencia en Astrofisica y Tecnologias Afines (CATA) [PFB-06/2007]; one-hundred-talent project of Sun Yat-Sen University; BASAL Center for Astrophysics and Associated Technologies (CATA) [PFB-06]; Ministry for the Economy, Development and Tourism, Programa Iniciativa Cientifica Milenio [IC120009]; Hungarian Academy of Sciences; Hungarian NKFI of the Hungarian National Research, Development and Innovation Office [K-119517]; National Science Foundation AAG [AST-1311835, AST-1715662]; NASA [NNX17AB64G]; Spanish Ministry of Economy and Competitiveness (MINECO) [AYA-2014-58082-P]; Centre national d'etudes spatiales (CNES) ; UTINAM Institute of the Universite de Franche-Comte - Region de Franche-Comte; Region de Franche-Comte; Institut des Sciences de l'Univers (INSU); Alfred P. Sloan Foundation; US Department of Energy Office of Science; Center for High-Performance Computing at the University of Utah; Brazilian Participation Group; Carnegie Institution for Science; Carnegie Mellon University; Chilean Participation Group; French Participation Group; Harvard-Smithsonian Center for Astrophysics; Instituto de Astrofisica de Canarias; Johns Hopkins University; Kavli Institute for the Physics and Mathematics of the Universe (IPMU)/University of Tokyo; Lawrence Berkeley National Laboratory; Leibniz Institut fur Astrophysik Potsdam (AIP); Max-Planck-Institut fur Astronomie (MPIA Heidelberg); Max-Planck-Institut fur Astrophysik (MPA Garching); Max-Planck-Institut fur Extraterrestrische Physik (MPE); National Astronomical Observatory of China; New Mexico State University; New York University; University of Notre Dame; Observatorio Nacional/MCTI; Ohio State University; Pennsylvania State University; Shanghai Astronomical Observatory; United Kingdom Participation Group; Universidad Nacional Autonoma de Mexico; University of Arizona; University of Colorado Boulder; University of Oxford; University of Portsmouth; University of Utah; University of Washington; University of Wisconsin; Vanderbilt University; Yale University; University of Virginia