Lithium-rotation connection in the newly discovered young stellar stream Psc-Eri (Meingast 1)
| dc.contributor.author | ARANCIBIA-SILVA, J. | |
| hal.structure.identifier | Institut de Planétologie et d'Astrophysique de Grenoble [IPAG] | |
| dc.contributor.author | BOUVIER, J. | |
| dc.contributor.author | BAYO, A. | |
| hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
| dc.contributor.author | GALLI, P. A. B. | |
| dc.contributor.author | BRANDNER, W. | |
| dc.contributor.author | BOUY, H. | |
| dc.contributor.author | BARRADO, D. | |
| dc.date.issued | 2020 | |
| dc.identifier.issn | 0004-6361 | |
| dc.description.abstractEn | Context. As a fragile element, lithium is a sensitive probe of physical processes occurring in stellar interiors. <BR /> Aims: We aim to investigate the relationship between lithium abundance and rotation rate in low-mass members of the newly discovered 125 Myr-old Psc-Eri stellar stream. <BR /> Methods: We obtained high-resolution optical spectra and measured the equivalent width of the 607.8 nm LiI line for 40 members of the Psc-Eri stream, whose rotational periods have been previously derived. <BR /> Results: We show that a tight correlation exists between the lithium content and rotation rate among the late-G to early-K-type stars of the Psc-Eri stream. Fast rotators are systematically Li rich, while slow rotators are Li depleted. This trend mimics that previously reported for the similar age Pleiades cluster. <BR /> Conclusions: The lithium-rotation connection thus seems to be universal over a restricted effective temperature range for low-mass stars at or close to the zero-age main sequence, and does not depend on environmental conditions. <P />Based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere under ESO programme 103.A-9009. | |
| dc.language.iso | en | |
| dc.publisher | EDP Sciences | |
| dc.subject.en | stars: low-mass | |
| dc.subject.en | stars: pre-main sequence | |
| dc.subject.en | stars: abundances | |
| dc.subject.en | open clusters and associations: individual: Psc-Eri | |
| dc.subject.en | stars: rotation | |
| dc.subject.en | Astrophysics - Solar and Stellar Astrophysics | |
| dc.subject.en | Astrophysics - Astrophysics of Galaxies | |
| dc.title.en | Lithium-rotation connection in the newly discovered young stellar stream Psc-Eri (Meingast 1) | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1051/0004-6361/201937137 | |
| dc.subject.hal | Planète et Univers [physics] | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph] | |
| dc.identifier.arxiv | 2002.10556 | |
| bordeaux.journal | Astronomy and Astrophysics - A&A | |
| bordeaux.volume | 635 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | insu-03678868 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//insu-03678868v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2020&rft.volume=635&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=ARANCIBIA-SILVA,%20J.&BOUVIER,%20J.&BAYO,%20A.&GALLI,%20P.%20A.%20B.&BRANDNER,%20W.&rft.genre=article |
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