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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Chromodynamical analysis of lenticular galaxies using globular clusters and planetary nebulae

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Author(s):
Zanatta, Emilio J. B. [1] ; Cortesi, Arianna [2] ; Chies-Santos, Ana L. [1] ; Forbes, Duncan A. [3] ; Romanowsky, Aaron J. [4, 5] ; Alabi, Adebusola B. [4] ; Coccato, Lodovico [6] ; de Oliveira, Claudia Mendes [2] ; Brodie, Jean P. [4] ; Merrifield, Michael [7]
Total Authors: 10
Affiliation:
[1] Univ Fed Rio Grande do Sul, Inst Fis, Dept Astron, Porto Alegre, RS - Brazil
[2] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Dept Astron, BR-05508900 Sao Paulo, SP - Brazil
[3] Swinburne Univ, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122 - Australia
[4] Univ Calif Observ, 1156 High St, Santa Cruz, CA 95064 - USA
[5] San Jose State Univ, Dept Phys & Astron, San Jose, CA 95192 - USA
[6] European Southern Observ, Karl Schwarzschild Str 2, D-85748 Garching - Germany
[7] Univ Nottingham, Sch Phys & Astron, Univ Pk, Nottingham NG7 2RD - England
Total Affiliations: 7
Document type: Journal article
Source: Monthly Notices of the Royal Astronomical Society; v. 479, n. 4, p. 5124-5135, OCT 2018.
Web of Science Citations: 1
Abstract

Recovering the origins of lenticular galaxies can shed light on the understanding of galaxy and compare them with the kinematics of planetary nebulae (PNe). The PNe and GC data come from the Planetary Nebulae Spectrograph and the SLUGGS Surveys. Through photometric spheroid-disc decomposition and PNe kinematics. we find the probability for a given GC to belong to either the spheroid or the disc of its host galaxy or be rejected from the model. We find that there is no correlation between the components that the GCs are likely to belong to and their colours. Particularly, for NGC2768, we find that its red GCs display rotation preferentially at inner radii (Re < 1). In the case of the GC system of NGC3115, we find a group of GCs with similar kinematics that are not likely to belong to either its spheroid or disc. For NGC7457, we find that 70 per cent of its GCs are likely to belong to the disc. Overall, our results suggest that these galaxies assembled into S0s through different evolutionary paths. Mergers seem to have been very important for NGC2768 and NGC3115 while NGC7457 is more likely to have experienced secular evolution. (AU)

FAPESP's process: 09/54202-8 - Acquisition of a robotic telescope for the Brazilian astronomical community
Grantee:Claudia Lucia Mendes de Oliveira
Support type: Multi-user Equipment Program