Sökning: onr:"swepub:oai:DiVA.org:ltu-104170" >
Modeling Linear Pol...
Modeling Linear Polarization of the Didymos–Dimorphos System before and after the DART Impact
-
- Penttilä, Antti (författare)
- Department of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland
-
- Muinonen, Karri (författare)
- Department of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland
-
- Granvik, Mikael (författare)
- Luleå tekniska universitet,Rymdteknik,Department of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland
-
visa fler...
-
- Gray, Zuri (författare)
- Armagh Observatory & Planetarium, College Hill, Armagh, BT61 9DG, UK; Mullard Space Science Laboratory, Department of Space and Climate Physics, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UK
-
- Bagnulo, Stefano (författare)
- Armagh Observatory & Planetarium, College Hill, Armagh, BT61 9DG, UK; Mullard Space Science Laboratory, Department of Space and Climate Physics, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UK
-
- Kolokolova, Ludmilla (författare)
- Department of Astronomy, University of Maryland, College Park, MD 20742-2421, USA
-
- Moreno, Fernando (författare)
- Instituto de Astrofísica de Andalucá, CSIC, Glorieta de la Astronomia s/n, E-18008 Granada, Spain
-
visa färre...
-
Department of Physics, PO. Box 64, FI-00014 University of Helsinki, Finland Rymdteknik (creator_code:org_t)
- Institute of Physics (IOP), 2024
- 2024
- Engelska.
-
Ingår i: The Planetary Science Journal. - : Institute of Physics (IOP). - 2632-3338. ; 5:1
- Relaterad länk:
-
https://doi.org/10.3...
-
visa fler...
-
https://ltu.diva-por... (primary) (Raw object)
-
https://urn.kb.se/re...
-
https://doi.org/10.3...
-
visa färre...
Abstract
Ämnesord
Stäng
- We analyze the polarization observations of the Didymos–Dimorphos system before and after the impact by the NASA Double Asteroid Redirection Test spacecraft on Dimorphos. We fit empirical polarization phase curve models and statistically confirm the discovery by Gray et al. about the degree of linear polarization of the system decreasing on the impact and remaining altered for at least 30 days post-impact. With numerical simulations of particles in the geometric optics domain, we estimate the dominant size of the particles either in the regolith of Didymos and Dimorphos or in the impact-driven ejecta cloud to be several hundred micrometers. The observed change between the pre-impact and post-impact systems indicates either a decrease in average particle size of some tens of micrometers or a decreased level of space weathering.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
Nyckelord
- Onboard Space Systems
- Rymdtekniska system
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas