dc.contributor.author | Morales, LM | |
dc.contributor.author | Sandquist, EL | |
dc.contributor.author | Schaefer, GH | |
dc.contributor.author | Farrington, CD | |
dc.contributor.author | Klement, R | |
dc.contributor.author | Bedin, LR | |
dc.contributor.author | Libralato, M | |
dc.contributor.author | Malavolta, L | |
dc.contributor.author | Nardiello, D | |
dc.contributor.author | Orosz, JA | |
dc.contributor.author | Monnier, JD | |
dc.contributor.author | Kraus, S | |
dc.contributor.author | Bouquin, J-BL | |
dc.contributor.author | Anugu, N | |
dc.contributor.author | Brummelaar, TT | |
dc.contributor.author | Davies, CL | |
dc.contributor.author | Ennis, J | |
dc.contributor.author | Gardner, T | |
dc.contributor.author | Lanthermann, C | |
dc.date.accessioned | 2022-06-22T09:13:15Z | |
dc.date.issued | 2022-07-05 | |
dc.date.updated | 2022-06-21T12:58:24Z | |
dc.description.abstract | We observe the brightest member of the Praesepe cluster, Epsilon Cnc, to precisely measure the characteristics of the stars in this binary system, en route to a new measurement of the cluster’s age. We present spectroscopic radial velocity measurements and
interferometric observations of the sky-projected orbit to derive the masses, which we
find to be M1/M = 2.420 ± 0.008 and M2/M = 2.226 ± 0.004. We place limits
on the color-magnitude positions of the stars by using spectroscopic and interferometric luminosity ratios while trying to reproduce the spectral energy distribution
of Epsilon Cnc. We re-examine the cluster membership of stars at the bright end of the
color-magnitude diagram using Gaia data and literature radial velocity information.
The binary star data are consistent with an age of 637 ± 19 Myr, as determined from
MIST model isochrones. The masses and luminosities of the stars appear to select
models with the most commonly used amount of convective core overshooting. | en_GB |
dc.description.sponsorship | European Research Council (ERC) | en_GB |
dc.description.sponsorship | Science and Technology Facilities Council (STFC) | en_GB |
dc.description.sponsorship | MIUR | en_GB |
dc.identifier.citation | Vol. 164, article 34 | en_GB |
dc.identifier.doi | 10.3847/1538-3881/ac7329 | |
dc.identifier.grantnumber | 101003096 | en_GB |
dc.identifier.grantnumber | 630008203 | en_GB |
dc.identifier.grantnumber | 2017Z2HSMF | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/130008 | |
dc.identifier | ORCID: 0000-0001-6017-8773 (Kraus, Stefan) | |
dc.language.iso | en_US | en_GB |
dc.publisher | IOP Publishing / American Astronomical Society | en_GB |
dc.title | The Interferometric Binary ϵ Cnc in Praesepe: Precise Masses and Age | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2022-06-22T09:13:15Z | |
dc.identifier.issn | 0004-6256 | |
dc.description | This is the final versioj. Available on open access from IOP Publishing via the DOI in this record | en_GB |
dc.identifier.eissn | 1538-3881 | |
dc.identifier.journal | Astronomical Journal | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2022-05-19 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2022-06-22T08:59:45Z | |
refterms.versionFCD | AM | |
refterms.dateFOA | 2022-08-30T09:21:34Z | |
refterms.panel | B | en_GB |