The behaviour of Li abundance in the stars of different metallicities
| hal.structure.identifier | Astronomical observatory of Odessa National University [Odessa] | |
| dc.contributor.author | MISHENINA, T. V. | |
| hal.structure.identifier | Observatoire aquitain des sciences de l'univers [OASU] | |
| hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
| hal.structure.identifier | Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB] | |
| dc.contributor.author | SOUBIRAN, C. | |
| dc.date.issued | 2005 | |
| dc.date.conference | 2005 | |
| dc.description.abstractEn | Using the method of spectral synthesis we derived the abundances of Li in the atmospheres of 100 stars in the range of metallicities ‑3{[Fe/H]{0.2. The investigated spectra are part of the library collected at the Haute Provence Observatory, they were obtained with the 193 cm telescope equipped with ELODIE spectrometer (R=42000). For the metal-poor dwarfs, in the "Spite plateau" region ([Fe/H]{‑1.7, Teff{>}5700 K) we obtain logA(Li){=}2.30{±}0.05, which is in a good agreement with the results of other authors. Our values of Li abundances do not indicate any trends either with Teff or with [Fe/H]. The "plateau" is also traced in the metallicity range ‑0.7{[Fe/H]{‑0.3. The behavior of the lithium abundance for stars with [Fe/H]{>}‑1.7, Teff{5700 K shows a depleting mechanism in these stars, the growth of its efficiency with an increase of the metallicity. The "lithium plateau" was also found for thick disk dwarfs with Teff}{>}5800 K. | |
| dc.language.iso | en | |
| dc.source.title | From Lithium to Uranium: Elemental Tracers of Early Cosmic 2005IAUS..228...97M - Evolution, IAU Symposium Proceedings of the international Astronomical Union 228 | |
| dc.title.en | The behaviour of Li abundance in the stars of different metallicities | |
| dc.type | Communication dans un congrès | |
| dc.identifier.doi | 10.1017/S1743921305005338 | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP] | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP] | |
| bordeaux.page | 97-98 | |
| bordeaux.volume | 228 | |
| bordeaux.country | FR | |
| bordeaux.title.proceeding | From Lithium to Uranium: Elemental Tracers of Early Cosmic 2005IAUS..228...97M - Evolution, IAU Symposium Proceedings of the international Astronomical Union 228 | |
| bordeaux.conference.city | Paris | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00403556 | |
| hal.version | 1 | |
| hal.invited | non | |
| hal.proceedings | oui | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00403556v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=From%20Lithium%20to%20Uranium:%20Elemental%20Tracers%20of%20Early%20Cosmic%202005IAUS..228...97M%20-%20Evolution,%20IAU%20Symposium%20Proceedings%20of%20the%20internatio&rft.date=2005&rft.volume=228&rft.spage=97-98&rft.epage=97-98&rft.au=MISHENINA,%20T.%20V.&SOUBIRAN,%20C.&rft.genre=unknown |
Fichier(s) constituant ce document
| Fichiers | Taille | Format | Vue |
|---|---|---|---|
|
Il n'y a pas de fichiers associés à ce document. |
|||