Loading...
Please wait, while we are loading the content...
Similar Documents
Beryllium and the formation of the Thick Disk and of the Halo
| Content Provider | Scilit |
|---|---|
| Author | Pasquini, Luca Smiljanic, R. Bonifacio, P. Gratton, R. Galli, D. Randich, S. |
| Copyright Year | 2008 |
| Description | We use Beryllium to investigate star formation in the early Galaxy. Be has been demonstrated to be a good indicator of time in these early epochs. By analyzing the so-far largest sample of halo and thick disk metal poor stars, we find a clear scatter in Be for a given value of [Fe/H] and [O/H]. The scatter is very pronounced for Halo stars, while it is marginal for thick disk stars. Our halo stars separate in the [α/Fe] - Be diagram, showing two main branches: one indistinguishable from the thick disk stars, and one with lower [α/Fe] ratio. The stars belonging to this branch are characterized by highly eccentric orbits and small perigalactic radius $(R_{min}$). Their kinematics are consistent with an accreted component. |
| Related Links | https://www.cambridge.org/core/services/aop-cambridge-core/content/view/8355CCAAC22B16B71508FD4596E7A8FB/S1743921308027609a.pdf/div-class-title-beryllium-and-the-formation-of-the-thick-disk-and-of-the-halo-div.pdf |
| Ending Page | 208 |
| Page Count | 6 |
| Starting Page | 203 |
| ISSN | 17439213 |
| e-ISSN | 17439221 |
| DOI | 10.1017/s1743921308027609 |
| Journal | Proceedings of the International Astronomical Union |
| Issue Number | S254 |
| Volume Number | 4 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 2008-06-01 |
| Access Restriction | Open |
| Subject Keyword | Proceedings of the International Astronomical Union Astronomy and Astrophysics Abundances Halo Disk |
| Content Type | Text |
| Resource Type | Article |
| Subject | Astronomy and Astrophysics Space and Planetary Science |
