dc.date.accessioned | 2023-03-04T16:17:11Z | |
dc.date.available | 2023-03-04T16:17:11Z | |
dc.date.created | 2022-05-31T13:01:13Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | Flekkøy, Eirik Grude Brodin, Joachim Falck . Discerning between Different 'Oumuamua Models by Optical and Infrared Observations. Astrophysical Journal Letters. 2022, 925(2) | |
dc.identifier.uri | http://hdl.handle.net/10852/100835 | |
dc.description.abstract | Abstract
The first interstellar object to be observed in our solar system, 1I/2017 U1 ’Oumuamua, combines the lack of observable cometary activity with an extra-gravitational acceleration. This has given rise to several mutually exclusive explanations based on different assumptions in the material composition of ’Oumuamua. We show how a combination of observations in the infrared and optical spectra may serve to distinguish between these explanations once another object with ’Omuamua-like properties comes close enough to Earth. This possibility is linked to the widely different thermal properties of the different material models that have been proposed. Developing a model for the thermal conduction and infrared signal from a fractal model, we compare predictions of the infrared signal with that from standard thermal models that assume ’Oumuamua to be either a solid piece of rock/ice or a thin sheet. | |
dc.language | EN | |
dc.publisher | Institute of Physics Publishing Ltd. | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Discerning between Different 'Oumuamua Models by Optical and Infrared Observations | |
dc.title.alternative | ENEngelskEnglishDiscerning between Different 'Oumuamua Models by Optical and Infrared Observations | |
dc.type | Journal article | |
dc.creator.author | Flekkøy, Eirik Grude | |
dc.creator.author | Brodin, Joachim Falck | |
cristin.unitcode | 185,15,4,0 | |
cristin.unitname | Fysisk institutt | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 2028407 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astrophysical Journal Letters&rft.volume=925&rft.spage=&rft.date=2022 | |
dc.identifier.jtitle | Astrophysical Journal Letters | |
dc.identifier.volume | 925 | |
dc.identifier.issue | 2 | |
dc.identifier.pagecount | 0 | |
dc.identifier.doi | https://doi.org/10.3847/2041-8213/ac4b62 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2041-8205 | |
dc.type.version | PublishedVersion | |
cristin.articleid | L11 | |
dc.relation.project | NFR/262644 | |