The Winchcombe fireball—That lucky survivor
dc.contributor.author | McMullan, S. | |
dc.contributor.author | Vida, D. | |
dc.contributor.author | Devillepoix, Hadrien | |
dc.contributor.author | Rowe, J. | |
dc.contributor.author | Daly, L. | |
dc.contributor.author | King, A. J. | |
dc.contributor.author | Cupak, Martin | |
dc.contributor.author | Howie, Robert | |
dc.contributor.author | Sansom, Ellie | |
dc.contributor.author | Shober, P. | |
dc.contributor.author | Towner, Martin | |
dc.contributor.author | Anderson, S. | |
dc.contributor.author | McFadden, L. | |
dc.contributor.author | Horak, J. | |
dc.contributor.author | Smedley, A.R.D. | |
dc.contributor.author | Joy, K.H. | |
dc.contributor.author | Shuttleworth, A. | |
dc.contributor.author | Colas, F. | |
dc.contributor.author | Zanda, B. | |
dc.contributor.author | O'Brien, A.C. | |
dc.contributor.author | McMullan, I. | |
dc.contributor.author | Shaw, C. | |
dc.contributor.author | Suttle, A. | |
dc.contributor.author | Suttle, M.D. | |
dc.contributor.author | Young, J.S. | |
dc.contributor.author | Campbell-Burns, P. | |
dc.contributor.author | Kacerek, R. | |
dc.contributor.author | Bassom, R. | |
dc.contributor.author | Bosley, S. | |
dc.contributor.author | Fleet, R. | |
dc.contributor.author | Jones, D. | |
dc.contributor.author | McIntyre, M. | |
dc.contributor.author | James, N. | |
dc.contributor.author | Robson, D. | |
dc.contributor.author | Dickinson, P. | |
dc.contributor.author | Bland, Phil | |
dc.contributor.author | Collins, G.S. | |
dc.date.accessioned | 2024-04-09T05:28:54Z | |
dc.date.available | 2024-04-09T05:28:54Z | |
dc.date.issued | 2023 | |
dc.identifier.citation | McMullan, S., Vida, D., Devillepoix, H.A.R., Rowe, J., Daly, L., King, A.J., Cupák, M., Howie, R.M. et al. 2023. The Winchcombe fireball—That lucky survivor. Meteoritics and Planetary Science. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/94724 | |
dc.identifier.doi | 10.1111/maps.13977 | |
dc.description.abstract |
On February 28, 2021, a fireball dropped ∼0.6 kg of recovered CM2 carbonaceous chondrite meteorites in South-West England near the town of Winchcombe. We reconstruct the fireball's atmospheric trajectory, light curve, fragmentation behavior, and pre-atmospheric orbit from optical records contributed by five networks. The progenitor meteoroid was three orders of magnitude less massive (∼13 kg) than any previously observed carbonaceous fall. The Winchcombe meteorite survived entry because it was exposed to a very low peak atmospheric dynamic pressure (∼0.6 MPa) due to a fortuitous combination of entry parameters, notably low velocity (13.9 km s−1). A near-catastrophic fragmentation at ∼0.07 MPa points to the body's fragility. Low entry speeds which cause low peak dynamic pressures are likely necessary conditions for a small carbonaceous meteoroid to survive atmospheric entry, strongly constraining the radiant direction to the general antapex direction. Orbital integrations show that the meteoroid was injected into the near-Earth region ∼0.08 Myr ago and it never had a perihelion distance smaller than ∼0.7 AU, while other CM2 meteorites with known orbits approached the Sun closer (∼0.5 AU) and were heated to at least 100 K higher temperatures. | |
dc.publisher | Wiley-Blackwell | |
dc.relation.sponsoredby | http://purl.org/au-research/grants/arc/DP170102529 | |
dc.relation.sponsoredby | http://purl.org/au-research/grants/arc/DP200102073 | |
dc.relation.sponsoredby | http://purl.org/au-research/grants/arc/LE170100106 | |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.title | The Winchcombe fireball—That lucky survivor | |
dc.type | Journal Article | |
dcterms.source.issn | 1086-9379 | |
dcterms.source.title | Meteoritics and Planetary Science | |
dc.date.updated | 2024-04-09T05:28:50Z | |
curtin.department | School of Earth and Planetary Sciences (EPS) | |
curtin.accessStatus | Open access | |
curtin.faculty | Faculty of Science and Engineering | |
curtin.contributor.orcid | Sansom, Ellie [0000-0003-2702-673X] | |
curtin.contributor.orcid | Howie, Robert [0000-0002-5864-105X] | |
curtin.contributor.orcid | Cupak, Martin [0000-0003-2193-0867] | |
curtin.contributor.orcid | Towner, Martin [0000-0002-8240-4150] | |
curtin.contributor.orcid | Bland, Phil [0000-0002-4681-7898] | |
curtin.contributor.orcid | Devillepoix, Hadrien [0000-0001-9226-1870] | |
curtin.contributor.researcherid | Bland, Phil [M-9392-2018] | |
curtin.contributor.scopusauthorid | Sansom, Ellie [56460192900] | |
curtin.contributor.scopusauthorid | Howie, Robert [56459760200] | |
curtin.contributor.scopusauthorid | Cupak, Martin [56460108800] | |
curtin.contributor.scopusauthorid | Towner, Martin [6602160346] | |
curtin.contributor.scopusauthorid | Bland, Phil [7005534334] | |
curtin.contributor.scopusauthorid | Devillepoix, Hadrien [56703315600] | |
curtin.repositoryagreement | V3 |