Thermal Properties of 1847 WISE-observed Asteroids
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10456626" target="_blank" >RIV/00216208:11320/22:10456626 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=17sEIg28ge" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=17sEIg28ge</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/PSJ/ac4d1f" target="_blank" >10.3847/PSJ/ac4d1f</a>
Alternative languages
Result language
angličtina
Original language name
Thermal Properties of 1847 WISE-observed Asteroids
Original language description
We present new thermophysical model fits of 1847 asteroids, deriving thermal inertia, diameter, and Bond and visible geometric albedo. We use thermal flux measurements obtained by the Wide -field Infrared Survey Explorer (WISE) during its fully cryogenic phase, when both the 12 pm (W3) and 22 pm (W4) bands were available. We take shape models and spin information from the Database of Asteroid Models from Inversion Techniques (DAMIT) and derive new shape models through lightcurve inversion and combining WISE photometry with existing DAMIT lightcurves. When we limit our sample to the asteroids with the most reliable shape models and thermal flux measurements, we find broadly consistent thermal inertia relations with recent studies. We apply fits to the diameters D (km) and thermal inertia I' (J m(-2) s(-0.5) K-1) normalized to 1 au with a linear relation of the form log[(sic)] = alpha + beta log [D], where we find a = 2.667 +/- 0.059 and beta = -0.467 +/- 0.044 for our sample alone and alpha = 2.509 +/- 0.017 and beta = -0.352 +/- 0.012 when combined with other literature estimates. We find little evidence of any correlation between rotation period and thermal inertia, owing to the small number of slow rotators to consider in our sample. While the large uncertainties on the majority of our derived thermal inertia only allow us to identify broad trends between thermal inertia and other physical parameters, we can expect a significant increase in high-quality thermal flux measurements and asteroid shape models with upcoming infrared and wide -field surveys, enabling even more thermophysical modeling of higher precision in the future.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
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
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
The Planetary Science Journal [online]
ISSN
2632-3338
e-ISSN
2632-3338
Volume of the periodical
3
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
25
Pages from-to
56
UT code for WoS article
000914649100001
EID of the result in the Scopus database
2-s2.0-85140057571