Five-planet Nice model

The five-planet Nice model is a recent variation of the Nice model that begins with five giant planets , the current four plus an additional ice giant , in a chain of mean-motion resonances. After the resonance chain is broken, the five giant planets undergo a period of planetesimal-driven migration, followed by a gravitational instability similar to that in the original Nice model. During the instability the additional giant planet is scattered inward onto a Jupiter-crossing orbit and is ejected from the Solar System following an encounter with Jupiter. An early Solar System with five giant planets was proposed in 2011 after numerical models indicated that this is more likely to reproduce the current Solar System. [1]

Page Revisions

Year Metadata Sections Top Words First Paragraph
2018

244619 characters

10 sections

27 paragraphs

2 images

251 internal links

263 external links

1. A five-planet Nice model

2. Solar System effects

3. Development of the Nice model

4. Proposed names

5. Notes on Planet Nine

6. References

planets 0.255

migration 0.240

disk 0.228

resonance 0.227

giant 0.227

instability 0.218

nice 0.214

jupiter 0.210

planetesimals 0.207

planetesimal 0.200

neptune 0.195

encounters 0.188

eccentricities 0.156

reproducing 0.149

bombardment 0.148

The five-planet Nice model is a recent variation of the Nice model that begins with five giant planets , the current four plus an additional ice giant , in a chain of mean-motion resonances. After the resonance chain is broken, the five giant planets undergo a period of planetesimal-driven migration, followed by a gravitational instability similar to that in the original Nice model. During the instability the additional giant planet is scattered inward onto a Jupiter-crossing orbit and is ejected from the Solar System following an encounter with Jupiter. An early Solar System with five giant planets was proposed in 2011 after numerical models indicated that this is more likely to reproduce the current Solar System. [1]

2017

237805 characters

10 sections

24 paragraphs

2 images

247 internal links

263 external links

1. A five-planet Nice model

2. Solar System effects

3. Development of the Nice model

4. Proposed names

5. Notes on Planet Nine

6. References

migration 0.269

planets 0.262

resonance 0.237

giant 0.232

nice 0.224

planetesimals 0.216

jupiter 0.214

neptune 0.198

disk 0.192

encounters 0.188

reproducing 0.171

planetesimal 0.165

eccentricities 0.164

instability 0.162

bombardment 0.155

The five-planet Nice model is a recent variation of the Nice model that begins with five giant planets , the current four plus an additional ice giant , in a chain of mean-motion resonances. After the resonance chain is broken, the five giant planets undergo a period of planetesimal-driven migration, followed by a gravitational instability similar to that in the original Nice model. During the instability the additional giant planet is scattered inward onto a Jupiter-crossing orbit and is ejected from the Solar System following an encounter with Jupiter. An early Solar System with five giant planets was proposed in 2011 after numerical models indicated that this is more likely to reproduce the current Solar System. [1]

2016

144094 characters

6 sections

14 paragraphs

2 images

218 internal links

145 external links

1. Background

2. Ejected planet

3. A five-planet Nice model

4. Proposed names

5. Notes on Planet Nine

6. References

planetesimals 0.289

giant 0.275

planets 0.259

jupiter 0.251

migration 0.226

eccentricities 0.212

saturn 0.185

neptune 0.175

planetesimal 0.173

resonance 0.160

disk 0.156

orbits 0.151

encounters 0.148

reproducing 0.147

nice 0.134

The five-planet Nice model is a recent variation of the Nice model that begins with five giant planets, the current four plus an additional ice giant, in a chain of mean-motion resonances. After the resonance chain is broken, the five giant planets undergo a period of planetesimal-driven migration, followed by a gravitational instability similar to that in the original Nice model. During the instability the additional giant planet is scattered inward onto a Jupiter-crossing orbit and is ejected from the Solar System following an encounter with Jupiter. An early Solar System with five giant planets was proposed in 2011 after numerical models indicated that this is more likely to reproduce the current Solar System. [1]

2015

67350 characters

4 sections

11 paragraphs

0 images

53 internal links

90 external links

1. Background

2. Five-giant-planet early Solar System

3. Mooted names

4. References

migration 0.313

eccentricities 0.258

reproducing 0.250

jupiter 0.240

giant 0.221

planetesimal 0.206

planets 0.204

neptune 0.199

resonance 0.164

saturn 0.157

simulations 0.154

inclinations 0.150

planetesimals 0.145

nice 0.143

belt 0.135

The hypothetical fifth giant planet is an additional planet added by some theorists to recent versions of the Nice model . The fifth giant planet is ejected from the Solar System following gravitational encounters with Saturn and Jupiter . The inclusion of five giant planets in numerical models of the early Solar System has been shown to increase the likelihood of their reproducing the current Solar System. [1]

2014

64856 characters

4 sections

9 paragraphs

0 images

51 internal links

88 external links

1. Background

2. Five giant planet early Solar System

3. Mooted names

4. References

reproducing 0.291

migration 0.252

jupiter 0.249

eccentricities 0.240

planets 0.238

giant 0.209

planetesimal 0.206

saturn 0.184

nice 0.166

resonance 0.148

outer 0.139

secular 0.135

planetesimals 0.135

neptune 0.135

simulations 0.134

The hypothetical fifth gas giant is an additional planet added by some theorists to recent versions of the Nice model . The fifth giant planet is ejected from the Solar System following gravitational encounters with Saturn and Jupiter . The inclusion of five giant planets in numerical models of the early Solar System has been shown to increase the likelihood of their reproducing the current Solar System. [1]

2013

14414 characters

5 sections

8 paragraphs

2 images

40 internal links

2 external links

1. Background

2. Hypothetical additional trans-Saturnian ice giant

3. Fifth gas giant and formation of terrestrial planets

4. Mooted names

5. References

nesvorny 0.381

giant 0.284

uranus 0.161

solar 0.150

gas 0.140

intensive 0.140

hypothetical 0.139

expelled 0.129

jupiter 0.122

neptune 0.113

formation 0.108

survival 0.107

hypothesis 0.106

osaka 0.105

inconsistencies 0.105

The fifth gas giant hypothesis is an attempt to explain apparent inconsistencies in the formation of the Solar System . Apart from Jupiter , Saturn , Uranus and Neptune , theorists argue that there was once a fifth gas giant, which was expelled from the Solar System in its formative period.

2012

14416 characters

5 sections

8 paragraphs

2 images

40 internal links

2 external links

1. Background

2. Hypothetical additional trans-Saturnian ice giant

3. Fifth gas giant and formation of terrestrial planets

4. Mooted names

5. References

nesvorny 0.381

giant 0.284

uranus 0.161

solar 0.150

gas 0.140

intensive 0.140

hypothetical 0.139

expelled 0.129

jupiter 0.122

neptune 0.113

formation 0.108

survival 0.107

hypothesis 0.106

osaka 0.105

inconsistencies 0.105

The fifth gas giant hypothesis is an attempt to explain apparent inconsistencies in the formation of the Solar System . Apart from Jupiter , Saturn , Uranus and Neptune , theorists argue that there was once a fifth gas giant, which was expelled from the Solar System in its formative period.

2011

14443 characters

5 sections

8 paragraphs

2 images

40 internal links

2 external links

1. Background

2. Hypothetical additional trans-Saturnian ice giant

3. Fifth gas giant and formation of terrestrial planets

4. Mooted names

5. References

nesvorny 0.382

giant 0.284

uranus 0.162

solar 0.150

gas 0.140

intensive 0.140

hypothetical 0.140

expelled 0.129

jupiter 0.122

neptune 0.114

formation 0.109

survival 0.107

hypothesis 0.106

osaka 0.106

inconsistencies 0.106

The fifth gas giant hypothesis is an attempt to explain apparent inconsistencies in the formation of the Solar System . Apart from Jupiter , Saturn , Uranus and Neptune , theorists argue that there was once a fifth gas giant, which was expelled from the Solar System in its formative period.