The debiased Near-Earth object population from ATLAS telescopes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10511170" target="_blank" >RIV/00216208:11320/25:10511170 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=KKcC4J9Hly" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=KKcC4J9Hly</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.icarus.2024.116316" target="_blank" >10.1016/j.icarus.2024.116316</a>
Alternative languages
Result language
angličtina
Original language name
The debiased Near-Earth object population from ATLAS telescopes
Original language description
This work is dedicated to debias the Near-Earth Object (NEO) population based on observations from the Asteroid Terrestrial-impact Last Alert System (ATLAS) telescopes. We have applied similar methods used to develop the recently released NEO model generator (NEOMOD), once debiasing the NEO population using data from Catalina Sky Survey (CSS) G96 telescope. ATLAS is composed of four different telescopes. We first analyzed observational data from each of all four telescopes separately and later combined them. Our results highlight main differences between CSS and ATLAS, e.g., sky coverage and survey power at debiasing the NEO population. ATLAS has a much larger sky coverage than CSS, allowing it to find bright NEOs that would be constantly "hiding"from CSS. Consequently, ATLAS is more powerful than CSS at debiasing the NEO population for H less than or similar to 19. With its intrinsically greater sensitivity and emphasis on observing near opposition, CSS excels in the debiasing of smaller objects. ATLAS, as an all sky survey designed to find imminent hazardous objects, necessarily spends a significant fraction of time looking at places on the sky where objects do not appear, reducing its power for debiasing the population of small objects. We estimate a NEO population completeness of approximate to 88%(+3%)(-2% ) for H < 17.75 and approximate to 36%(+1%)(-1% ) for H < 22.25. Those numbers are similar to previous estimates (within error bars for H < 17.75) from CSS, yet, around 3% and 8% smaller at their face values, respectively. We also confirm previous finding that the V(6 )secular resonance is the main source of small and faint NEOs at H = 28, whereas the 3:1 mean motion resonance with Jupiter dominates for larger and brighter NEOs at H = 15.
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/GA23-04946S" target="_blank" >GA23-04946S: Study of evolutionary paths of asteroids driven by non-gravitational forces with photometric observations</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Icarus
ISSN
0019-1035
e-ISSN
1090-2643
Volume of the periodical
425
Issue of the periodical within the volume
leden
Country of publishing house
US - UNITED STATES
Number of pages
17
Pages from-to
116316
UT code for WoS article
001327660500001
EID of the result in the Scopus database
2-s2.0-85204790725