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1,678 claims from 1,032 papers are on the record. 46 have been checked so far; the other 1,632 have no check with a result yet.

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Keyword: extreme trans-Neptunian objects ×Clear all

6 claims from 2 papers

1. Physics and Astronomy › Astro and Planetary Science

   NEW EXTREME TRANS-NEPTUNIAN OBJECTS: TOWARD A SUPER-EARTH IN THE OUTER SOLAR SYSTEM

   Sheppard and Trujillo · The Astronomical Journal · 2016

   A survey for extreme solar system objects found new distant bodies whose orbits cluster in ways the authors say are further evidence of an unknown massive planet in the outer solar system.

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   1. UncheckedTwo newly found distant objects, 2014 SR349 and 2013 FT28, orbit far beyond Neptune, with orbits over 150 AU wide and closest approaches beyond 40 AU.“Two new objects, 2014 SR349 and 2013 FT28, are extreme detached trans-Neptunian objects, with a>150 AU and perihelia well beyond Neptune (q>40 AU).”
   2. UncheckedThe authors report finding 2014 FE72, the first known outer Oort cloud object whose closest approach to the Sun lies beyond Neptune's orbit.“We also discovered the first outer Oort cloud object with a perihelion beyond Neptune, 2014 FE72.”
   3. UncheckedWith 2013 FT28 added, the paper finds the longitude of perihelion correlates significantly with argument of perihelion and orbit pole angle in extreme objects.“Finally, with the discovery of 2013 FT28, we find that the longitude of perihelion is significantly correlated with the argument of perihelion and orbit pole angle for all extreme objects.”

2. Physics and Astronomy › Astro and Planetary Science

   Peculiar orbits and asymmetries in extreme trans-Neptunian space

   Marcos and Marcos · Monthly Notices of the Royal Astronomical Society · 2021

   The authors applied machine learning and nodal-distance analysis to 40 known extreme trans-Neptunian objects, finding possible clusters, close orbital approaches and an asymmetry that may reflect external perturbations.

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   1. UncheckedMachine-learning clustering of the 40 known extreme trans-Neptunian objects suggests they may belong to four different populations.“Machine-learning techniques show that the known ETNOs may belong to four different populations.”
   2. Unchecked“Results from the analysis of the distribution of nodal distances show that 41 per cent of the known ETNOs have at least one mutual nodal distance smaller than 1.45 au (1st percentile of the distribution), perhaps hinting at past interactions.”
   3. UncheckedKnown extreme trans-Neptunian objects show a strongly significant imbalance between pairs with small ascending and small descending nodal distances.“In addition, the known ETNOs exhibit a highly statistically significant asymmetry between the distributions of object pairs with small ascending and descending nodal distances that might be indicative of a response to external perturbations.”