Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/29180
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Nardiello, D. | - |
dc.contributor.author | Piotto, G. | - |
dc.contributor.author | Milone, A. P. | - |
dc.contributor.author | Rich, R. M. | - |
dc.contributor.author | CASSISI, Santi | - |
dc.contributor.author | BEDIN, Luigi | - |
dc.contributor.author | Bellini, A. | - |
dc.contributor.author | Renzini, A. | - |
dc.date.accessioned | 2020-12-23T16:42:41Z | - |
dc.date.available | 2020-12-23T16:42:41Z | - |
dc.date.issued | 2019 | - |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/29180 | - |
dc.description.abstract | In this paper, we present a multiwavelength analysis of the complex stellar populations within the massive globular cluster Mayall II (G1), a satellite of the nearby Andromeda galaxy projected at a distance of 40 kpc. We used images collected with the Hubble Space Telescope in UV, blue and optical filters to explore the multiple stellar populations hosted by G1. The m<SUB>F438W</SUB> versus m<SUB>F438W</SUB> - m<SUB>F606W</SUB> colour-magnitude diagram shows a significant spread of the red giant branch, that divides 1 mag brighter than the red clump. A possible explanation is the presence of two populations with different iron abundance or different C+N+O content, or different helium content, or a combination of the three causes. A similar red giant branch split is observed also for the Galactic globular cluster NGC 6388. Our multiwavelength analysis gives also the definitive proof that G1 hosts stars located on an extended blue horizontal branch. The horizontal branch of G1 exhibits similar morphology as those of NGC 6388 and NGC 6441, which host stellar populations with extreme helium abundance (Y > 0.33). As a consequence, we suggest that G1 may also exhibit large star-to-star helium variations. | - |
dc.language.iso | eng | - |
dc.title | Hubble Space Telescope analysis of stellar populations within the globular cluster G1 (Mayall II) in M 31 | - |
dc.type | Article | - |
dc.identifier.doi | 10.1093/mnras/stz629 | - |
dc.identifier.scopus | 2-s2.0-85063152864 | - |
dc.identifier.isi | 000474902000006 | - |
dc.identifier.url | https://academic.oup.com/mnras/article/485/3/3076/5369634 | - |
dc.relation.medium | STAMPA | - |
dc.relation.volume | 485 | - |
dc.relation.issue | 3 | - |
dc.relation.firstpage | 3076 | - |
dc.relation.lastpage | 3096 | - |
dc.type.referee | REF_1 | - |
dc.description.international | sì | - |
dc.contributor.country | USA | - |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | - |
dc.relation.journal | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | - |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2019MNRAS.485.3076N | - |
dc.description.apc | no | - |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Abruzzo | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.orcid | 0000-0001-5870-3735 | - |
crisitem.author.orcid | 0000-0003-4080-6466 | - |
crisitem.journal.journalissn | 0035-8711 | - |
crisitem.journal.ance | E112946 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
1903.00488.pdf | preprint | 4.49 MB | Adobe PDF | View/Open |
stz629.pdf | pdf editoriale | 5.54 MB | Adobe PDF | View/Open |
Page view(s)
69
checked on Apr 23, 2024
Download(s)
45
checked on Apr 23, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are published in Open Access, unless otherwise indicated.