Near-Earth asteroid (3200) Phaethon: Characterization of its orbit, spin state, and thermophysical parameters
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F16%3A10331718" target="_blank" >RIV/00216208:11320/16:10331718 - isvavai.cz</a>
Alternative codes found
RIV/67985815:_____/16:00469524
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201628666" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201628666</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201628666" target="_blank" >10.1051/0004-6361/201628666</a>
Alternative languages
Result language
angličtina
Original language name
Near-Earth asteroid (3200) Phaethon: Characterization of its orbit, spin state, and thermophysical parameters
Original language description
Context. The near-Earth asteroid (3200) Phaethon is an intriguing object: its perihelion is at only 0.14 au and is associated with the Geminid meteor stream. Aims. We aim to use all available disk-integrated optical data to derive a reliable convex shape model of Phaethon. By interpreting the available space-and ground-based thermal infrared data and Spitzer spectra using a thermophysical model, we also aim to further constrain its size, thermal inertia, and visible geometric albedo. Methods. We applied the convex inversion method to the new optical data obtained by six instruments and to previous observations. The convex shape model was then used as input for the thermophysical modeling. We also studied the long-term stability of Phaethon's orbit and spin axis with a numerical orbital and rotation-state integrator. Results. We present a new convex shape model and rotational state of Phaethon: a sidereal rotation period of 3.603958(2) h and ecliptic coordinates of the preferred pole orientation of (319 degrees, 39 degrees) with a 5 degrees uncertainty. Moreover, we derive its size (D = 5 : 1 +/- 0 : 2 km), thermal inertia (Gamma = 600 +/- 200 J m(2) s(-1/2) K-1), geometric visible albedo (pV = 0 : 122 +/- 0 : 008), and estimate the macroscopic surface roughness. We also find that the Sun illumination at the perihelion passage during the past several thousand years is not connected to a specific area on the surface, which implies non-preferential heating.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Astronomy and Astrophysics [online]
ISSN
1432-0746
e-ISSN
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Volume of the periodical
592
Issue of the periodical within the volume
červenec
Country of publishing house
PL - POLAND
Number of pages
15
Pages from-to
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UT code for WoS article
000384722600150
EID of the result in the Scopus database
2-s2.0-84978863734