Winston, E. and McBreen, S. and Carr, A. J. and McBreen, B. and Duggan, P. and Hanlon, L. and French, J. and Metcalfe, L. (2005) Gamma-ray Bursts and X-ray melting of material as a source of chondrules and planets. Il nuovo cimento C, 28 (4\5). pp. 653-656. ISSN 1826-9885
|
Text
ncc9064.pdf - Published Version Download (262kB) | Preview |
Abstract
Thein tenseradiation from a Gamma-Ray Burst (GRB) is capable of melting stony material at distances up to 300 light years which subsequently cool to form chondrules. These conditions were created in the laboratory for the first time when millimeter sized pellets were placed in a vacuum chamber in the White synchrotron beam at the European Synchrotron Radiation Facility (ESRF). The pellets were rapidly heated in the X-ray and gamma-ray furnace to above 1400◦C melted and cooled. This process heats from the inside unlike normal furnaces. The melted spherical samples were examined with a range of techniques and found to have microstructural properties similar to the chondrules that come from meteorites. This experiment demonstrates that GRBs can melt precursor material to form chondrules that may subsequently influence the formation of planets. This work extends the field of laboratory astrophysics to includehigh-p ower synchrotron sources.
| Item Type: | Article |
|---|---|
| Additional Information: | Paper presented at the “4th Workshop on Gamma-Ray Burst in the Afterglow Era”, Rome, October 18-22, 2004. |
| Uncontrolled Keywords: | γ-ray sources: γ-ray bursts ; Meteorites micrometeorites and tektites ; Infrared excess; debris disks: protoplanetary disks; exozodiacal dust ; Furnaces; heaters |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 16 Mar 2020 17:54 |
| Last Modified: | 16 Mar 2020 17:54 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/15818 |
Actions (login required)
 |
View Item |
