Show simple item record

dc.contributor.authorCody, Ann Marie
dc.contributor.authorStauffer, John
dc.contributor.authorBaglin, Annie
dc.contributor.authorMicela, Giuseppina
dc.contributor.authorRebull, Luisa M.
dc.contributor.authorFlaccomio, Ettore
dc.contributor.authorMorales-Calderón, María
dc.contributor.authorAigrain, Suzanne
dc.contributor.authorBouvier, Jèrôme
dc.contributor.authorHillenbrand, Lynne A.
dc.contributor.authorGutermuth, Robert
dc.contributor.authorSong, Inseok
dc.contributor.authorTurner, Neal
dc.contributor.authorAlencar, Silvia H. P.
dc.contributor.authorZwintz, Konstanze
dc.contributor.authorPlavchan, Peter
dc.contributor.authorCarpenter, John
dc.contributor.authorFindeisen, Krzysztof
dc.contributor.authorCarey, Sean
dc.contributor.authorTerebey, Susan
dc.contributor.authorHartmann, Lee
dc.contributor.authorCalvet, Nuria
dc.contributor.authorTeixeira, Paula
dc.contributor.authorVrba, Frederick J.
dc.contributor.authorWolk, Scott
dc.contributor.authorCovey, Kevin
dc.contributor.authorPoppenhaeger, Katja
dc.contributor.authorGünther, Hans Moritz
dc.contributor.authorForbrich, Jan
dc.contributor.authorWhitney, Barbara
dc.contributor.authorAffer, Laura
dc.contributor.authorHerbst, William
dc.contributor.authorHora, Joseph
dc.contributor.authorBarrado, David
dc.contributor.authorHoltzman, Jon
dc.contributor.authorMarchis, Franck
dc.contributor.authorWood, Kenneth
dc.contributor.authorGuimarães, Marcelo Medeiros
dc.contributor.authorBox, Jorge Lillo
dc.contributor.authorGillen, Ed
dc.contributor.authorMcQuillan, Amy
dc.contributor.authorEspaillat, Catherine
dc.contributor.authorAllen, Lori
dc.contributor.authorD'Alessio, Paola
dc.contributor.authorFavata, Fabio
dc.date.accessioned2017-09-15T14:11:28Z
dc.date.available2017-09-15T14:11:28Z
dc.date.issued2014-03-13
dc.identifier.citationCody , A M , Stauffer , J , Baglin , A , Micela , G , Rebull , L M , Flaccomio , E , Morales-Calderón , M , Aigrain , S , Bouvier , J , Hillenbrand , L A , Gutermuth , R , Song , I , Turner , N , Alencar , S H P , Zwintz , K , Plavchan , P , Carpenter , J , Findeisen , K , Carey , S , Terebey , S , Hartmann , L , Calvet , N , Teixeira , P , Vrba , F J , Wolk , S , Covey , K , Poppenhaeger , K , Günther , H M , Forbrich , J , Whitney , B , Affer , L , Herbst , W , Hora , J , Barrado , D , Holtzman , J , Marchis , F , Wood , K , Guimarães , M M , Box , J L , Gillen , E , McQuillan , A , Espaillat , C , Allen , L , D'Alessio , P & Favata , F 2014 , ' CSI 2264: Simultaneous optical and infrared light curves of young disk-bearing stars in NGC 2264 with CoRoT and Spitzer-- evidence for multiple origins of variability ' , Astronomical Journal , vol. 147 , no. 4 . https://doi.org/10.1088/0004-6256/147/4/82
dc.identifier.issn0004-6256
dc.identifier.otherPURE: 11212945
dc.identifier.otherPURE UUID: cf0094d1-0930-4d7d-89a1-71ce8c60359e
dc.identifier.otherArXiv: http://arxiv.org/abs/1401.6582v2
dc.identifier.otherScopus: 84897823262
dc.identifier.otherORCID: /0000-0001-8694-4966/work/62751202
dc.identifier.urihttp://hdl.handle.net/2299/19432
dc.descriptionAnne Marie Cody, et al, 'CSI 2264: SIMULTANEOUS OPTICAL AND INFRARED LIGHT CURVES OF YOUNG DISK-BEARING STARS IN NGC 2264 WITH CoRoT and SPITZER—EVIDENCE FOR MULTIPLE ORIGINS OF VARIABILITY', The Astronomical Journal, 147:82 (47pp), 2014 April doi:10.1088/0004-6256/147/4/82 © 2014. The American Astronomical Society.
dc.description.abstractWe present the Coordinated Synoptic Investigation of NGC 2264, a continuous 30-day multi-wavelength photometric monitoring campaign on more than 1000 young cluster members using 16 telescopes. The unprecedented combination of multi-wavelength, high-precision, high-cadence, and long-duration data opens a new window into the time domain behavior of young stellar objects. Here we provide an overview of the observations, focusing on results from Spitzer and CoRoT. The highlight of this work is detailed analysis of 162 classical T Tauri stars for which we can probe optical and mid-infrared flux variations to 1% amplitudes and sub-hour timescales. We present a morphological variability census and then use metrics of periodicity, stochasticity, and symmetry to statistically separate the light curves into seven distinct classes, which we suggest represent different physical processes and geometric effects. We provide distributions of the characteristic timescales and amplitudes, and assess the fractional representation within each class. The largest category (>20%) are optical "dippers" having discrete fading events lasting ~1-5 days. The degree of correlation between the optical and infrared light curves is positive but weak; notably, the independently assigned optical and infrared morphology classes tend to be different for the same object. Assessment of flux variation behavior with respect to (circum)stellar properties reveals correlations of variability parameters with H$\alpha$ emission and with effective temperature. Overall, our results point to multiple origins of young star variability, including circumstellar obscuration events, hot spots on the star and/or disk, accretion bursts, and rapid structural changes in the inner disk.en
dc.format.extent47
dc.language.isoeng
dc.relation.ispartofAstronomical Journal
dc.subjectastro-ph.SR
dc.titleCSI 2264: Simultaneous optical and infrared light curves of young disk-bearing stars in NGC 2264 with CoRoT and Spitzer-- evidence for multiple origins of variabilityen
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1088/0004-6256/147/4/82
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record