dc.contributor.author | Vincenzo, Fiorenzo | |
dc.contributor.author | Matteucci, Francesca | |
dc.contributor.author | De Boer, Thomas J L | |
dc.contributor.author | Cignoni, Michele | |
dc.contributor.author | Tosi, Monica | |
dc.date.accessioned | 2017-08-07T15:27:49Z | |
dc.date.available | 2017-08-07T15:27:49Z | |
dc.date.issued | 2016-08-01 | |
dc.identifier.citation | Vincenzo , F , Matteucci , F , De Boer , T J L , Cignoni , M & Tosi , M 2016 , ' Lighting up stars in chemical evolution models : the CMD of Sculptor ' , Monthly Notices of the Royal Astronomical Society , vol. 460 , no. 2 , pp. 2238-2244 . https://doi.org/10.1093/mnras/stw1145 | |
dc.identifier.issn | 0035-8711 | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/1605.03606v1 | |
dc.identifier.uri | http://hdl.handle.net/2299/19165 | |
dc.description | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. ©: 2016 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. | |
dc.description.abstract | We present a novel approach to draw the synthetic colour–magnitude diagram (CMD) of galaxies, which can provide – in principle – a deeper insight in the interpretation and understanding of current observations. In particular, we ‘light up’ the stars of chemical evolution models, according to their initial mass, metallicity and age, to eventually understand how the assumed underlying galaxy formation and evolution scenario affects the final configuration of the synthetic CMD. In this way, we obtain a new set of observational constraints for chemical evolution models beyond the usual photospheric chemical abundances. The strength of our method resides in the very fine grid of metallicities and ages of the assumed data base of stellar isochrones. In this work, we apply our photochemical model to reproduce the observed CMD of the Sculptor dSph and find that we can reproduce the main features of the observed CMD. The main discrepancies are found at fainter magnitudes in the main sequence turn-off and sub-giant branch, where the observed CMD extends towards bluer colours than the synthetic one; we suggest that this is a signature of metal-poor stellar populations in the data, which cannot be captured by our assumed one-zone chemical evolution model. | en |
dc.format.extent | 7 | |
dc.format.extent | 1916260 | |
dc.language.iso | eng | |
dc.relation.ispartof | Monthly Notices of the Royal Astronomical Society | |
dc.subject | stars: abundances | |
dc.subject | Hertzprung-Russell and colour-magniture diagrams | |
dc.subject | dwarf | |
dc.subject | Local Group | |
dc.subject | galaxies: stellar content | |
dc.title | Lighting up stars in chemical evolution models : the CMD of Sculptor | en |
dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.versionofrecord | 10.1093/mnras/stw1145 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |