OSSOS. XIX. Testing Early Solar System Dynamical Models Using OSSOS Centaur Detections
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F19%3A10405850" target="_blank" >RIV/00216208:11320/19:10405850 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sdqV-ZX3GY" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=sdqV-ZX3GY</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3847/1538-3881/ab3651" target="_blank" >10.3847/1538-3881/ab3651</a>
Alternative languages
Result language
angličtina
Original language name
OSSOS. XIX. Testing Early Solar System Dynamical Models Using OSSOS Centaur Detections
Original language description
We use published models of the early solar system evolution with a slow, long-range and grainy migration of Neptune to predict the orbital element distributions and the number of modern-day Centaurs. The model distributions are biased by the Outer Solar System Origins Survey (OSSOS) simulator and compared with the OSSOS Centaur detections. We find an excellent match to the observed orbital distribution, including the wide range of orbital inclinations which was the most troublesome characteristic to fit in previous models. A dynamical model, in which the original population of outer disk planetesimals was calibrated from Jupiter trojans, is used to predict that OSSOS should detect 11 +/- 4 Centaurs with semimajor axes of a < 30 au, perihelion distances of q > 7.5 au, and diameter of D > 10km (absolute magnitude H-r < 13.7 for a 6% albedo). This is consistent with 15 actual OSSOS Centaur detections with H-r < 13.7. The population of Centaurs is estimated to be 21,000 +/- 8000 for D > 10 km. The inner scattered disk at 50 < a < 200 au should contain (2.0 +/- 0.8) x 10(7) D > 10km bodies and the Oort cloud should contain (5.0 +/- 1.9) x 10(8) D > 10 km comets. Population estimates for different diameter cutoffs can be obtained from the size distribution of Jupiter trojans (N(>D) proportional to D-2.1 for 5 < D < 100 km). We discuss model predictions for the Large Synoptic Survey Telescope observations of Centaurs.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/GA18-06083S" target="_blank" >GA18-06083S: Evolution of solid bodies in protoplanetary disks and during collisions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
The Astronomical Journal
ISSN
0004-6256
e-ISSN
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Volume of the periodical
158
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
6
Pages from-to
132
UT code for WoS article
000484525100001
EID of the result in the Scopus database
2-s2.0-85072370837