tag:blogger.com,1999:blog-1478276091294638188.post3097447249632519760..comments2019-08-29T07:32:06.952-03:00Comments on Segundo Sol: Artigos CientÃficos publicados em periÃ³dicos sobre o tema "Planeta X" (Segundo Sol)Unknownnoreply@blogger.comBlogger1125tag:blogger.com,1999:blog-1478276091294638188.post-50990410301572222172012-06-10T19:13:23.716-03:002012-06-10T19:13:23.716-03:00Fonte: http://dda.harvard.edu/meetings/2012/DDA201...Fonte: http://dda.harvard.edu/meetings/2012/DDA2012Abstracts.pdf<br /><br />05 Planetary Formation Mt. Hood, 1:40PM - 4:20PM<br />05.01: Signatures Of A Putative Planetary Mass Solar Companion On The Orbital Distribution Of Tno's And Centaurs - Rodney S. Gomes1, J. S. Soares1<br />1Observatorio Nacional, Brazil.<br />Gomes et al. 2006 (Icarus 184, 589) show that a planetary mass solar companion (PMSC) can produce orbits in an inner Oort cloud that can account for Sedna's orbit. On the other hand, one should expect that this faraway planet would also produce some peculiar orbital distribution for distant TNO's and Centaurs. A pair of interesting orbits in this respect are those of 2006 SQ372 and 2000 OO67. These objects have very large semimajor axes and perihelion between Uranus and Neptune orbits. It has been claimed that a likely source for 2006 SQ372 is the Oort cloud. Yet a PMSC has an important effect on objects at inner Oort cloud distances, say between 300 AU and 2000 AU, to make their perihelion distances to continually oscillate with a large enough amplitude to account for objects both inside and outside Neptune's orbit. This <br />naturally produces an extra amount of TNO's with semimajor axes between 300 and 2000 AU and perihelion inside Neptune's orbit, like 2006 SQ372 and 2000 OO67. This signature should be found in present observations. To deal with this problem we construct a numerical simulator and apply it to populations of distant TNO's produced by numerical integration of planetesimals and planets according to the Nice model, either including or not a PMSC. With the results from the numerical simulator we compare the model with and without the PMSC with observations. <br />We conclude that a PMSC is compatible with the existence of 2006 SQ372 and 2000 OO67 and, in fact, although not conclusively, we can also claim that the observations of 2006 SQ372 and 2000 OO67, compared to all other scattered objects, would be lucky events if no PMSC exists.Anonymousnoreply@blogger.com