Li abundances and chromospheric activity of BY Dra type stars
dc.contributor.author | MISHENINA, Tamara 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 | Université Sciences et Technologies - Bordeaux 1 [UB] | |
hal.structure.identifier | Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB] | |
dc.contributor.author | SOUBIRAN, C. | |
dc.contributor.author | KOVTYUKH, Valery V. | |
dc.contributor.author | BELIK, Stanislav I. | |
dc.date.issued | 2010 | |
dc.date.conference | 2010 | |
dc.description.abstractEn | Atmospheric parameters and Li abundances have been determined for 162 stars observed at high resolution, high signal to noise ratio with the ELODIE echelle spectrograph (OHP, France). Among them, about 70 stars are active stars with a large fraction of BY Dra type stars. For all stars, rotational velocities were obtained with a calibration of the cross-correlation function, effective temperatures by the line depth ratio method, surface gravities by the parallaxe method and by the ionization balance of iron. The frequency of stars with observed lithium is significantly higher in active stars than in non active stars. Among active stars, no clear correlation has been found between different indicators of activity for our sample stars, but some correlation of an index R′H K and vsini is observed. | |
dc.language.iso | en | |
dc.source.title | Light Elements in the Universe | |
dc.subject.en | Stars: abundances | |
dc.subject.en | fundamental parameters | |
dc.subject.en | activity | |
dc.title.en | Li abundances and chromospheric activity of BY Dra type stars | |
dc.type | Communication dans un congrès | |
dc.identifier.doi | 10.1017/S1743921310004394 | |
dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM] | |
dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Instrumentation et méthodes pour l'astrophysique [astro-ph.IM] | |
bordeaux.page | 343-344 | |
bordeaux.volume | 268 | |
bordeaux.country | FR | |
bordeaux.title.proceeding | Light Elements in the Universe | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-00521984 | |
hal.version | 1 | |
hal.invited | non | |
hal.proceedings | oui | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-00521984v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=Light%20Elements%20in%20the%20Universe&rft.date=2010&rft.volume=268&rft.spage=343-344&rft.epage=343-344&rft.au=MISHENINA,%20Tamara%20V.&SOUBIRAN,%20C.&KOVTYUKH,%20Valery%20V.&BELIK,%20Stanislav%20I.&rft.genre=unknown |
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