Identification of globular cluster stars in RAVE data

• Verfasst von: Anguiano, Borja [VerfasserIn]
• Verfasst von: Grebel, Eva K. [VerfasserIn]
• Verfasst von: Boeche, Corrado [VerfasserIn]
• Titel: Identification of globular cluster stars in RAVE data
• Titelzusatz: II. Extended tidal debris around NGC 3201
• Verf.angabe: B. Anguiano, G.M. De Silva, K. Freeman, G.S. Da Costa, T. Zwitter, A.C. Quillen, D.B. Zucker, J.F. Navarro, A. Kunder, A. Siebert, R.F.G. Wyse, E.K. Grebel, G. Kordopatis, B.K. Gibson, G. Seabroke, S. Sharma, J. Wojno, J. Bland-Hawthorn, Q.A. Parker, M. Steinmetz, C. Boeche, G. Gilmore, O. Bienayme, W. Reid, F. Watson
• Fussnoten: Gesehen am 08.11.2017
• Titel Quelle: Enthalten in: De.arxiv.org
• Jahr Quelle: 2016
• Band/Heft Quelle: (2016) Artikel-Nummer 1601.02282, 10 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1565121694

Abstract

We report the identification of extended tidal debris potentially associated with the globular cluster NGC 3201, using the RAVE catalogue. We find the debris stars are located at a distance range of 1-7 kpc based on the forthcoming RAVE distance estimates. The derived space velocities and integrals of motion show interesting connections to NGC 3201, modulo uncertainties in the proper motions. Three stars, which are among the 4 most likely candidates for NGC 3201 tidal debris, are separated by 80 degrees on the sky yet are well matched by the 12 Gyr, [Fe/H] = -1.5 isochrone appropriate for the cluster. This is the first time tidal debris around this cluster has been reported over such a large spatial extent, with implications for the cluster$'