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The age related properties of solar type stars
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Soderblom, David |
| Copyright Year | 1999 |
| Description | The studies of lithium in solar-type stars in clusters of a wide range of ages has provided critical information on a tracer of convective processes, especially among very young stars. Our most recent work has been on a pre-main sequence cluster (NGC 2264) that took place after this grant expired, but was founded on it. The spread seen in Li in Zero-Age Main Sequence clusters like the Pleiades is huge and possibly related to rotation. No clear spread in seen in NGC 2264, so it does not have its origins in the conditions of formation but is instead a result of processes occurring during PMS evolution. Our observations of M67 were particularly interesting because this cluster is the same age as the Sun, i.e.,very old. Clear evidence was seen for a spread in Li there too, indicating that the spread seen in very young stars perpetuates itself into old age. |
| File Size | 76589 |
| Page Count | 3 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19990049234 |
| Archival Resource Key | ark:/13960/t84j5f99d |
| Language | English |
| Publisher Date | 1999-05-26 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Age Factor Metallic Stars Pleiades Cluster Main Sequence Stars Pre-main Sequence Stars Open Clusters Star Clusters Rotation Convection Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
