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On the metallicity dependence of the [Y/Mg]–age relation for solar-type stars

Feltzing, Sofia LU ; Howes, Louise M. LU ; Mcmillan, Paul J. LU and Stonkutė, Edita LU (2017) In Monthly Notices of the Royal Astronomical Society: Letters 465(1). p.109-113
Abstract
Several recent studies of solar twins in the solar neighbourhood have shown a tight correlation between various elemental abundances and age, in particular [Y/Mg]. If this relation is real and valid for other types of stars as well as elsewhere in the Galaxy, it would provide a very powerful tool to derive ages of stars without the need to resort to determining their masses (evolutionary stage) very precisely. The method would also likely work if the stellar parameters have relatively large errors. The studies presented in the recent literature span a narrow range of [Fe/H]. By studying a larger sample of solar neighbourhood dwarfs with a much larger range of [Fe/H], we find that the relation between [Y/Mg] and age depends on the [Fe/H] of... (More)
Several recent studies of solar twins in the solar neighbourhood have shown a tight correlation between various elemental abundances and age, in particular [Y/Mg]. If this relation is real and valid for other types of stars as well as elsewhere in the Galaxy, it would provide a very powerful tool to derive ages of stars without the need to resort to determining their masses (evolutionary stage) very precisely. The method would also likely work if the stellar parameters have relatively large errors. The studies presented in the recent literature span a narrow range of [Fe/H]. By studying a larger sample of solar neighbourhood dwarfs with a much larger range of [Fe/H], we find that the relation between [Y/Mg] and age depends on the [Fe/H] of the stars. Hence, it appears that the [Y/Mg]–age relation is unique to solar analogues. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Monthly Notices of the Royal Astronomical Society: Letters
volume
465
issue
1
pages
109 - 113
publisher
Oxford University Press
external identifiers
  • scopus:85019566787
  • wos:000403083900023
ISSN
1745-3925
DOI
10.1093/mnrasl/slw209
language
English
LU publication?
yes
id
7dc368a9-fb5d-4999-8639-a872d52a9175
date added to LUP
2017-05-03 15:10:00
date last changed
2018-05-20 04:33:29
@article{7dc368a9-fb5d-4999-8639-a872d52a9175,
  abstract     = {Several recent studies of solar twins in the solar neighbourhood have shown a tight correlation between various elemental abundances and age, in particular [Y/Mg]. If this relation is real and valid for other types of stars as well as elsewhere in the Galaxy, it would provide a very powerful tool to derive ages of stars without the need to resort to determining their masses (evolutionary stage) very precisely. The method would also likely work if the stellar parameters have relatively large errors. The studies presented in the recent literature span a narrow range of [Fe/H]. By studying a larger sample of solar neighbourhood dwarfs with a much larger range of [Fe/H], we find that the relation between [Y/Mg] and age depends on the [Fe/H] of the stars. Hence, it appears that the [Y/Mg]–age relation is unique to solar analogues.},
  author       = {Feltzing, Sofia and Howes, Louise M. and Mcmillan, Paul J. and Stonkutė, Edita},
  issn         = {1745-3925},
  language     = {eng},
  month        = {02},
  number       = {1},
  pages        = {109--113},
  publisher    = {Oxford University Press},
  series       = {Monthly Notices of the Royal Astronomical Society: Letters},
  title        = {On the metallicity dependence of the [Y/Mg]–age relation for solar-type stars},
  url          = {http://dx.doi.org/10.1093/mnrasl/slw209},
  volume       = {465},
  year         = {2017},
}