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New Evidence for a ...
New Evidence for a Physical Link between Asteroids (155140) 2005 UD and (3200) Phaethon
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- Devogèle, Maxime (författare)
- Lowell Observatory, 1400 W. Mars Hill Rd., Flagstaff, AZ 86001, USA
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- MacLennan, Eric (författare)
- Department of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland
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- Gustafsson, Annika (författare)
- Department of Astronomy & Planetary Science, Northern Arizona University, P.O. Box 6010, Flagstaff, AZ 86011, USA
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- Moskovitz, Nicholas (författare)
- Lowell Observatory, 1400 W. Mars Hill Rd., Flagstaff, AZ 86001, USA
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- Chatelain, Joey (författare)
- Las Cumbres Observatory, CA, USA
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- Borisov, Galin (författare)
- Armagh Observatory and Planetarium, College Hill, Armagh BT61 9DG, UK. Institute of Astronomy and National Astronomical Observatory, Bulgarian Academy of Sciences, 72, Tsarigradsko Chaussèe Blvd., Sofia BG-1784, Bulgaria
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- Abe, Shinsuke (författare)
- Aerospace Engineering, Nihon University, 7-24-1 Narashinodai, Funabashi, Chiba 2748501, Japan
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- Arai, Tomoko (författare)
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino, Japan
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- Fedorets, Grigori (författare)
- Department of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland; Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UK
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- Ferrais, Marin (författare)
- Space sciences, Technologies & Astrophysics Research (STAR) Institute University of Liège Allée du 6 Août ut 19, B-4000 Liège, Belgium; Aix Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, F-13388, Marseille, France; Space sciences, Technologies, France
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- Granvik, Mikael (författare)
- Luleå tekniska universitet,Rymdteknik,Department of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland
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- Jehin, Emmanuel (författare)
- Space sciences, Technologies & Astrophysics Research (STAR) Institute University of Liège Allée du 6 Août 19, B-4000 Liège, Belgium
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- Siltala, Lauri (författare)
- Department of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland; Nordic Optical Telescope, Apartado 474, E-38700 S/C de La Palma, Santa Cruz de Tenerife, Spain
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- Pöntinen, Mikko (författare)
- Department of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland
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- Mommert, Michael (författare)
- Lowell Observatory, 1400 W. Mars Hill Rd., Flagstaff, AZ 86001, USA
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- Polishook, David (författare)
- Faculty of Physics, Weizmann Institute of Science, 234 Herzl St. Rehovot 7610001, Israel
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- Skiff, Brian (författare)
- Lowell Observatory, 1400 W. Mars Hill Rd., Flagstaff, AZ 86001, USA
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- Tanga, Paolo (författare)
- Université Côte d'Azur, Observatoire de la Côte d'Azur, CNRS, Laboratoire Lagrange, Boulevard de l'Observatoire, CS34229, F-06304 Nice Cedex 4, France
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- Yoshida, Fumi (författare)
- Planetary Exploration Research Center, Chiba Institute of Technology, Narashino, Japan
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Lowell Observatory, 1400 W Mars Hill Rd., Flagstaff, AZ 86001, USA Department of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland (creator_code:org_t)
- Institute of Physics (IOP), 2020
- 2020
- Engelska.
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Ingår i: The Planetary Science Journal. - : Institute of Physics (IOP). - 2632-3338. ; 1:1
- Relaterad länk:
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https://ltu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- In 2018, the near-Earth object (155140) 2005 UD (hereafter UD) experienced a close fly by of the Earth. We present results from an observational campaign involving photometric, spectroscopic, and polarimetric observations carried out across a wide range of phase angles (07–88°). We also analyze archival NEOWISE observations. We report an absolute magnitude of H V = 17.51 ± 0.02 mag and an albedo of p V = 0.10 ± 0.02. UD has been dynamically linked to Phaethon due their similar orbital configurations. Assuming similar surface properties, we derived new estimates for the diameters of Phaethon and UD of D = 5.4 ± 0.5 km and D = 1.3 ± 0.1 km, respectively. Thermophysical modeling of NEOWISE data suggests a surface thermal inertia of and regolith grain size in the range of 0.9–10 mm for UD and grain sizes of 3–30 mm for Phaethon. The light curve of UD displays a symmetric shape with a reduced amplitude of Am(0) = 0.29 mag and increasing at a linear rate of 0.017 mag/° between phase angles of 0° and ~25°. Little variation in light-curve morphology was observed throughout the apparition. Using light-curve inversion techniques, we obtained a sidereal rotation period P = 5.235 ± 0.005 hr. A search for rotational variation in spectroscopic and polarimetric properties yielded negative results within observational uncertainties of ~10% μm−1 and ~16%, respectively. In this work, we present new evidence that Phaethon and UD are similar in composition and surface properties, strengthening the arguments for a genetic relationship between these two objects.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Near-Earth objects
- CCD observation
- Astronomical techniques
- Photometry
- Polarimetry
- Spectroscopy
- Onboard Space Systems
- Rymdtekniska system
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- ref (ämneskategori)
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- Av författaren/redakt...
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Devogèle, Maxime
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MacLennan, Eric
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Gustafsson, Anni ...
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Moskovitz, Nicho ...
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Chatelain, Joey
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Borisov, Galin
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visa fler...
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Abe, Shinsuke
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Arai, Tomoko
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Fedorets, Grigor ...
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Ferrais, Marin
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Granvik, Mikael
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Jehin, Emmanuel
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Siltala, Lauri
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Pöntinen, Mikko
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Mommert, Michael
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Polishook, David
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Skiff, Brian
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Tanga, Paolo
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Yoshida, Fumi
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