Evidence for Early Circumstellar Disk Evolution in NGC 2068/71
| dc.creator | Flaherty, K. M. | |
| dc.creator | Muzerolle, J. | |
| dc.date | 2007-12-10 | |
| dc.date.accessioned | 2026-07-07T12:24:05Z | |
| dc.date.available | 2026-07-07T12:24:05Z | |
| dc.description | We study the disk and accretion properties of young stars in the NGC 2068 and NGC 2071 clusters. Using low-resolution optical spectra, we define a membership sample and determine an age for the region of ~2 Myr. Using high-resolution spectra of the H-alpha line we study the accretion activity of these likely members and also examine the disk properties of the likely members using IRAC and MIPS mid-infrared photometry. A substantial fraction (79%) of the 67 members have an infrared excess while all of the stars with significant infrared excess show evidence for active accretion. We find three populations of evolved disks (IRAC-weak, MIPS-weak and transition disks) all of which show decreased accretion activity in addition to the evidence for evolution in the dust disk. | |
| dc.description | 44 pages (20 pages of text), 16 figures, 5 tables | |
| dc.identifier | https://arxiv.org/abs/0712.1601 | |
| dc.identifier | http://arxiv.org/abs/0712.1601 | |
| dc.identifier | Astron.J.135:966-983,2008 | |
| dc.identifier | doi:10.1088/0004-6256/135/3/966 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/214210 | |
| dc.subject | Astrophysics | |
| dc.title | Evidence for Early Circumstellar Disk Evolution in NGC 2068/71 | |
| dc.type | text |