dc.contributor.author | Wang, Ping | |
dc.contributor.author | Chen, Wei | |
dc.contributor.author | Lin, C. C. | |
dc.contributor.author | Pandey, A. K. | |
dc.contributor.author | Huang, C. K. | |
dc.contributor.author | Panwar, N. | |
dc.contributor.author | Lee, C. H. | |
dc.contributor.author | Tsai, M. F. | |
dc.contributor.author | Tang, C.-H. | |
dc.contributor.author | Goldman, B. | |
dc.contributor.author | Burgett, W. S. | |
dc.contributor.author | Chambers, K. C. | |
dc.contributor.author | Draper, P. W. | |
dc.contributor.author | Flewelling, H. | |
dc.contributor.author | Grav, T. | |
dc.contributor.author | Heasley, J. N. | |
dc.contributor.author | Hodapp, K. W. | |
dc.contributor.author | Huber, M. E. | |
dc.contributor.author | Jedicke, R. | |
dc.contributor.author | Kaiser, N. | |
dc.contributor.author | Kudritzki, R.-P. | |
dc.contributor.author | Luppino, G. A. | |
dc.contributor.author | Lupton, R. H. | |
dc.contributor.author | Magnier, E. A. | |
dc.contributor.author | Metcalfe, N. | |
dc.contributor.author | Monet, D. G. | |
dc.contributor.author | Morgan, J. S. | |
dc.contributor.author | Onaka, P. M. | |
dc.contributor.author | Price, P. A. | |
dc.contributor.author | Stubbs, Christopher William | |
dc.contributor.author | Sweeney, W. | |
dc.contributor.author | Tonry, J. L. | |
dc.contributor.author | Wainscoat, R. J. | |
dc.contributor.author | Waters, C. | |
dc.date.accessioned | 2017-11-28T16:11:21Z | |
dc.date.issued | 2014 | |
dc.identifier.citation | Wang, P. F., W. P. Chen, C. C. Lin, A. K. Pandey, C. K. Huang, N. Panwar, C. H. Lee, et al. 2014. “Characterization of the Praesepe Star Cluster by Photometry and Proper Motions with 2MASS, PPMXL, and Pan-STARRS.” The Astrophysical Journal 784 (1) (March 4): 57. doi:10.1088/0004-637x/784/1/57. | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:34388862 | |
dc.description.abstract | Membership identification is the first step in determining the properties of a star cluster. Low-mass members in particular could be used to trace the dynamical history, such as mass segregation, stellar evaporation, or tidal stripping, of a star cluster in its Galactic environment. We identified member candidates of the intermediate-age Praesepe cluster (M44) with stellar masses ~0.11-2.4 M ☉, using Panoramic Survey Telescope And Rapid Response System and Two Micron All Sky Survey photometry, and PPMXL proper motions. Within a sky area of 3° radius, 1040 candidates are identified, of which 96 are new inclusions. Using the same set of selection criteria on field stars, an estimated false positive rate of 16% was determined, suggesting that 872 of the candidates are true members. This most complete and reliable membership list allows us to favor the BT-Settl model over other stellar models. The cluster shows a distinct binary track above the main sequence, with a binary frequency of 20%-40%, and a high occurrence rate of similar mass pairs. The mass function is consistent with that of the disk population but shows a deficit of members below 0.3 solar masses. A clear mass segregation is evidenced, with the lowest-mass members in our sample being evaporated from this disintegrating cluster. | en_US |
dc.description.sponsorship | Astronomy | en_US |
dc.description.sponsorship | Physics | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | IOP Publishing | en_US |
dc.relation.isversionof | doi:10.1088/0004-637x/784/1/57 | en_US |
dash.license | OAP | |
dc.title | Characterization of the Praesepe Star Cluster by Photometry and Proper Motions With 2MASS, PPMXL, and Pan-STARRS | en_US |
dc.type | Journal Article | en_US |
dc.description.version | Accepted Manuscript | en_US |
dc.relation.journal | The Astrophysical Journal | en_US |
dash.depositing.author | Stubbs, Christopher William | |
dc.date.available | 2017-11-28T16:11:21Z | |
dc.identifier.doi | 10.1088/0004-637x/784/1/57 | * |
dash.authorsordered | false | |
dash.contributor.affiliated | Chen, Wei | |
dash.contributor.affiliated | Wang, Ping | |
dash.contributor.affiliated | Stubbs, Christopher | |