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dc.contributor.authorKraus, A. L.en_US
dc.contributor.authorCody, A. M.en_US
dc.contributor.authorCovey, K. R.en_US
dc.contributor.authorRizzuto, A. C.en_US
dc.contributor.authorMann, A.en_US
dc.contributor.authorIreland, M.en_US
dc.contributor.authorJensen, E. L. N.en_US
dc.contributor.authorMuirhead, P. S.en_US
dc.date.accessioned2017-12-07T15:34:13Z
dc.date.available2017-12-07T15:34:13Z
dc.date.issued2016
dc.identifier.citationAL Kraus, AM Cody, KR Covey, AC Rizzuto, A Mann, M Ireland, ELN Jensen, PS Muirhead. 2016. "The Mass-Radius Relation of Young Stars from K2." American Astronomical Society Meeting Abstracts.
dc.identifier.urihttps://hdl.handle.net/2144/25890
dc.description.abstractEvolutionary models of pre-main sequence stars remain largely uncalibrated, especially for masses below that of the Sun, and dynamical masses and radii pose valuable tests of these theoretical models. Stellar mass dependent features of star formation (such as disk evolution, planet formation, and even the IMF) are fundamentally tied to these models, which implies a systematic uncertainty that can only be improved with precise measurements of calibrator stars. We will describe the discovery and characterization of ten eclipsing binary systems in the Upper Scorpius star-forming region from K2 Campaign 2 data, spanning from B stars to the substellar boundary. We have obtained complementary RV curves, spectral classifications, and high-resolution imaging for these targets; the combination of these data yield high-precision masses and radii for the binary components, and hence a dense sampling of the (nominally coeval) mass-radius relation of 10 Myr old stars. We already reported initial results from this program for the young M4.5 eclipsing binary UScoCTIO 5 (Kraus et al. 2015), demonstrating that theoretically predicted masses are discrepant by ~50% for low-mass stars. K2's unique radius measurements allow us to isolate the source of the discrepancy: models of young stars do not predict luminosities that are too low, as is commonly thought, but rather temperatures that are too warm.en_US
dc.description.urihttp://adsabs.harvard.edu/abs/2016AAS...22723612K
dc.language.isoen_US
dc.relation.ispartofAmerican Astronomical Society Meeting Abstracts
dc.titleThe mass-radius relation of young stars from K2en_US
dc.typeConference materialsen_US
dc.description.versionPublished versionen_US
pubs.elements-sourcemanual-entryen_US
pubs.notesEmbargo: No embargoen_US
pubs.organisational-groupBoston Universityen_US
pubs.organisational-groupBoston University, College of Arts & Sciencesen_US
pubs.organisational-groupBoston University, College of Arts & Sciences, Department of Astronomyen_US
dc.identifier.orcid0000-0002-0638-8822 (Muirhead, PS)


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