%0 Journal Article %1 citeulike:14698983 %A Batygin, Konstantin %A Adams, Fred C. %A Brown, Michael E. %A Becker, Juliette C. %D 2019 %J Physics Reports %K imported %R 10.1016/j.physrep.2019.01.009 %T The Planet Nine Hypothesis %U http://dx.doi.org/10.1016/j.physrep.2019.01.009 %X Over the course of the past two decades, observational surveys have unveiled the intricate orbital structure of the Kuiper Belt, a field of icy bodies orbiting the Sun beyond Neptune. In addition to a host of readily-predictable orbital behavior, the emerging census of trans-Neptunian objects displays dynamical phenomena that cannot be accounted for by interactions with the known eight-planet solar system alone. Specifically, explanations for the observed physical clustering of orbits with semi-major axes in excess of \$\sim250\,\$AU, the detachment of perihelia of select Kuiper belt objects from Neptune, as well as the dynamical origin of highly inclined/retrograde long-period orbits remain elusive within the context of the classical view of the solar system. This newly outlined dynamical architecture of the distant solar system points to the existence of a new planet with mass of \$m\_95-10\,M\_øplus\$, residing on a moderately inclined orbit (\$i\_9\sim15-25°\$) with semi-major axis \$a\_9\sim 400 - 800\,\$AU and eccentricity between \$e\_9 0.2 - 0.5\$. This paper reviews the observational motivation, dynamical constraints, and prospects for detection of this proposed object known as Planet Nine.

@article{citeulike:14698983, abstract = { Over the course of the past two decades, observational surveys have unveiled the intricate orbital structure of the Kuiper Belt, a field of icy bodies orbiting the Sun beyond Neptune. In addition to a host of readily-predictable orbital behavior, the emerging census of trans-Neptunian objects displays dynamical phenomena that cannot be accounted for by interactions with the known eight-planet solar system alone. Specifically, explanations for the observed physical clustering of orbits with semi-major axes in excess of \$\sim250\,\$AU, the detachment of perihelia of select Kuiper belt objects from Neptune, as well as the dynamical origin of highly inclined/retrograde long-period orbits remain elusive within the context of the classical view of the solar system. This newly outlined dynamical architecture of the distant solar system points to the existence of a new planet with mass of \$m\_9\sim 5-10\,M\_{\oplus}\$, residing on a moderately inclined orbit (\$i\_9\sim15-25°\$) with semi-major axis \$a\_9\sim 400 - 800\,\$AU and eccentricity between \$e\_9 \sim 0.2 - 0.5\$. This paper reviews the observational motivation, dynamical constraints, and prospects for detection of this proposed object known as Planet Nine.}, added-at = {2019-04-01T20:03:11.000+0200}, archiveprefix = {arXiv}, author = {Batygin, Konstantin and Adams, Fred C. and Brown, Michael E. and Becker, Juliette C.}, biburl = {https://www.bibsonomy.org/bibtex/2efc1184078101bf95c155e46ddad7323/waspagv}, citeulike-article-id = {14698983}, citeulike-linkout-0 = {http://arxiv.org/abs/1902.10103}, citeulike-linkout-1 = {http://arxiv.org/pdf/1902.10103}, citeulike-linkout-2 = {http://dx.doi.org/10.1016/j.physrep.2019.01.009}, day = 26, doi = {10.1016/j.physrep.2019.01.009}, eprint = {1902.10103}, interhash = {f17244e4be296fcd93cf08478685cf56}, intrahash = {efc1184078101bf95c155e46ddad7323}, issn = {03701573}, journal = {Physics Reports}, keywords = {imported}, month = feb, posted-at = {2019-04-01 18:39:18}, priority = {2}, timestamp = {2019-04-01T20:03:11.000+0200}, title = {{The Planet Nine Hypothesis}}, url = {http://dx.doi.org/10.1016/j.physrep.2019.01.009}, year = 2019 }