Notices
Results 1 to 6 of 6
Like Tree1Likes
  • 1 Post By sculptor

Thread: chaotic early solar system

  1. #1 chaotic early solar system 
    Forum Radioactive Isotope sculptor's Avatar
    Join Date
    Apr 2012
    Posts
    4,211
    A recent article about the Nice model, proposed a chaotic solar system that has much more gravitational forcings in play than commonly assumed.
    Part of the modeling seemed to indicate that the giants formed closer to the sun, and that before the late bombardment uranus and neptune switched places.

    The Nice model also proposes that the ort cloud in spherical.

    What does this chaotic gravitational forcings model do for/to the milankovitch models?

    Nice model - Wikipedia, the free encyclopedia

    Did the Solar System start with an extra planet? : Nature News Blog

    http://www.sciops.esa.int/SD/ESACFAC...1012_Carry.pdf


    Last edited by sculptor; July 11th, 2013 at 08:53 PM.
    Reply With Quote  
     

  2.  
     

  3. #2  
    Universal Mind John Galt's Avatar
    Join Date
    Jul 2005
    Posts
    14,168
    I don't understand your post.

    A recent article about the Nice model, proposed a chaotic solar system
    The Nice model has always proposed a chaotic solar system. What are you claiming has changed.

    has much more gravitational forcings in play than commonly assumed.
    Assumed by whom?

    The Nice model also proposes that the Oort cloud in spherical.
    The Oort cloud is sperical. What's your point?

    What does this chaotic gravitational forcings model do for/to the milankovitch models?
    Nothing. It's not relevant.


    Reply With Quote  
     

  4. #3  
    Forum Radioactive Isotope sculptor's Avatar
    Join Date
    Apr 2012
    Posts
    4,211
    actually, John, there was only the one question.
    The article I had read seemed to claim that going back(or forward) very far with the milankovitch cycles became problematic after just a few hundreds of thousands of years(if that long) due to the "chaotic" gravitational forcings between earth, other planets and the sun which could alter orbits; distance from the sun, precession, obliquity, eccentricity, etc.
    Leading me to wonder if the late bombardment could have created the radical obliquity discussed in an earlier thread?

    You know that I am interested in paleo climates as/re their effects on paleo man------though I had studied meterology and climatology, the real interest in paleoclimates for me came from anthropology.

    (I suspect that I will never live long enough to satisfy my curiousity)
    Last edited by sculptor; July 12th, 2013 at 08:28 AM.
    Reply With Quote  
     

  5. #4  
    Moderator Moderator
    Join Date
    Nov 2011
    Location
    city of wine and roses
    Posts
    6,222
    You know that I am interested in paleo climates as/re their effects on paleo man-
    So you really need only the last 2 to 5 million years or so if you're including our more recent hominid ancestors as well as us. All of this was pretty clearly sorted out a fair while ago - just look at the wiki page. Milankovitch cycles - Wikipedia, the free encyclopedia
    "Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen." Winston Churchill
    "nature is like a game of Jenga; you never know which brick you pull out will cause the whole stack to collapse" Lucy Cooke
    Reply With Quote  
     

  6. #5  
    Forum Radioactive Isotope sculptor's Avatar
    Join Date
    Apr 2012
    Posts
    4,211
    thanx adelady
    I appreciate the current models, but even in the past 3-5 million years, there seem to be anomolies between the milankovitch cycles and documented paleo climates.

    small descrepencies seem to have had huge effects
    (I wish I could explain this more succinctly----)

    We live in a wondrous age, where new data refine earlier grey areas, and even replace old "concrete" concepts.

    I seem to not have a clear idea about where this is going, but so far, it is/has been one helluvan interesting journey.

    What i was more interested in was whether there were new models(superceeding/refining the milankovitch) that took the "chaotic" recent(60 million years) gravitational forcings into account?
    And then backward to the supposed end of the "late heavy bombardment".
    and
    looking at the bombardment as/re obliquity

    (does any of this make any sense at all?)
    Ascended likes this.
    Reply With Quote  
     

  7. #6  
    Universal Mind John Galt's Avatar
    Join Date
    Jul 2005
    Posts
    14,168
    I think you need to define, very precisely, exactly what you mean by chaotic. Currently, Does not compute.
    Reply With Quote  
     

Similar Threads

  1. Replies: 4
    Last Post: April 10th, 2012, 05:32 AM
  2. Your Baby Can Read is a system of early language development
    By nicyling in forum General Discussion
    Replies: 0
    Last Post: November 8th, 2010, 03:12 AM
  3. The solar system
    By Shaderwolf in forum Physics
    Replies: 19
    Last Post: October 29th, 2007, 05:16 PM
  4. The solar system
    By Jim Colyer in forum Astronomy & Cosmology
    Replies: 6
    Last Post: August 17th, 2006, 09:56 AM
Bookmarks
Bookmarks
Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •