Exoplanet Dynamics: Investigating Planet Migration

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Discussion Overview

The discussion revolves around the dynamics of exoplanet migration, particularly focusing on theories related to how massive planets may migrate towards their parent stars through interactions with other massive planets. Participants are seeking references and papers that explore this topic, especially in the context of giant planet interactions.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses difficulty in finding original papers on the theory of massive planets migrating towards their parent star due to interactions with other massive planets.
  • Another participant mentions that most migration scenarios involve asymmetric torques from the protoplanetary disk, suggesting there are multiple theories on the subject.
  • A participant clarifies that they are specifically looking for information on giant planet interactions, having already reviewed other migration theories involving planetary discs and tidal forces.
  • One participant suggests following the chain of references in a provided paper to find more information on the topic.
  • Another participant shares a paper that analyzes the interactions between two Jupiter-like planets after the formation process, proposing that such interactions could explain the presence of large planets found near nearby stars.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on a specific paper or theory, and multiple competing views regarding the mechanisms of planet migration remain present in the discussion.

Contextual Notes

Participants reference various theories and papers without resolving the differences in their approaches to understanding planet migration dynamics.

Kurdt
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Hello Everyone

I am currently researching a paper on the history of exoplanet hunting and I have reached an impass. I have heard a theory about how massive planets migrate towards their parent star by interacting with other massive planets, but ihave been unable to find the original journal article or paper anywhere. Anyone who knows of any papers on the subject could they please direct me to where they were published?

Thanks in advance
 
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Kurdt said:
I am currently researching a paper on the history of exoplanet hunting and I have reached an impass. I have heard a theory about how massive planets migrate towards their parent star by interacting with other massive planets, but ihave been unable to find the original journal article or paper anywhere. Anyone who knows of any papers on the subject could they please direct me to where they were published?

Most planet migration scenarios I've heard of involve asymmetric torques from the protoplanetary disk, but I guess there are a lot of theories. Here's a paper that might be worth checking out:

Planet Migration
 
Thanks spacetiger but i already have information on interactions with planetary discs and other tidal force theories but this one was specifically about giant planet interactions.
 
Kurdt said:
Thanks spacetiger but i already have information on interactions with planetary discs and other tidal force theories but this one was specifically about giant planet interactions.

The paper is a review, so it includes those as well.
 
Ah. That will teach me to read just the first few lines of an abstract.

Sorry and thankyou
 
Kurdt said:
Sorry and thankyou

No problem at all. If that doesn't provide you with the information you need, try following the chain of references given in that paper (using the abstract service I linked or ADS).
 
Yes there were plenty references on the first paper I just needed a starter to get me going.
 
An additional reference

hi,
the follwoing is a paper that analyses the possiblity of interaction between two Jupiter like planets much after the 'formation' process is over..
shows that one could get ejected with the other orbiting the central star at very small radii...
this is suspected to be the funda behind the many jup size planets that have been found near nearby stars.
genusunique


http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1996Sci...274..954R&db_key=AST
 

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