On Ca II Emission as an Indicator of the Age of Young Stars

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dc.contributor.authorSong, Inseok
dc.contributor.authorZuckerman, B
dc.contributor.authorBessell, Michael
dc.date.accessioned2015-12-13T23:11:22Z
dc.date.available2015-12-13T23:11:22Z
dc.date.issued2004
dc.date.updated2015-12-12T08:27:09Z
dc.description.abstractChromospheric emission in the Ca II H and K lines has often been used as an age diagnostic for solar mass stars. For 20 such stars with ages less than a few hundred megayears, we compare Ca II ages derived by Wright et al. with ages we derive based on a combination of lithium abundance, X-ray activity, and Galactic space motion. Typically, the Ca II ages are noticeably older than the lithium/X-ray ages, suggesting that a recalibration of the Ca II ages may be necessary.
dc.identifier.issn0004-637X
dc.identifier.urihttp://hdl.handle.net/1885/87560
dc.publisherIOP Publishing
dc.sourceAstrophysical Journal, The
dc.subjectKeywords: Stars: activity; Stars: fundamental parameters
dc.titleOn Ca II Emission as an Indicator of the Age of Young Stars
dc.typeJournal article
local.bibliographicCitation.lastpage127
local.bibliographicCitation.startpage125
local.contributor.affiliationSong, Inseok, Gemini Observatory
local.contributor.affiliationZuckerman, B, University of California
local.contributor.affiliationBessell, Michael, College of Physical and Mathematical Sciences, ANU
local.contributor.authoruidBessell, Michael, u6900904
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationMigratedxPub16904
local.identifier.citationvolume614
local.identifier.doi10.1086/425683
local.identifier.scopusID2-s2.0-10044296306
local.type.statusPublished Version

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