J/ApJ/715/1050 Predicted abundances for extrasolar planets. I. (Bond+, 2010)
The compositional diversity of extrasolar terrestrial planets.
I. In situ simulations.
Bond J.C., O'Brien D.P., Lauretta D.S.
<Astrophys. J., 715, 1050-1070 (2010)>
=2010ApJ...715.1050B 2010ApJ...715.1050B
ADC_Keywords: Abundances ; Models ; Planets ; Stars, double and multiple
Keywords: planetary systems - planets and satellites: composition -
planets and satellites: formation
Abstract:
Extrasolar planet host stars have been found to be enriched in key
planet-building elements. These enrichments have the potential to
drastically alter the composition of material available for
terrestrial planet formation. Here, we report on the combination of
dynamical models of late-stage terrestrial planet formation within
known extrasolar planetary systems with chemical equilibrium models of
the composition of solid material within the disk. This allows us to
determine the bulk elemental composition of simulated extrasolar
terrestrial planets. A wide variety of resulting planetary
compositions are found, ranging from those that are essentially "Earth
like", containing metallic Fe and Mg silicates, to those that are
dominated by graphite and SiC. This shows that a diverse range of
terrestrial planets may exist within extrasolar planetary systems.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 33 10 Host target stars properties (tables 7 and 8 of
the paper)
table10.dat 111 497 Predicted bulk elemental abundances for all
simulated extrasolar terrestrial planets
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See also:
J/A+A/526/A112 : Radial velocities of HARPS metal-poor sample (Santos+, 2011)
J/MNRAS/378/1141 : Chemical abundances in 31 stars with planet (Gonzalez+,
2007)
J/A+A/449/723 : Abundances in atmospheres of stars with planets (Gilli+,
2006)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Star Star name
10- 13 F4.2 Msun Mass Stellar mass from CDS database
15- 21 E7.3 Msun/yr dM/dT Stellar mass accretion (see section 3.2)
23- 26 I4 K Teff Effective temperature from Santos et al. 2004,
Cat. J/A+A/415/1153
28- 33 F6.4 Msun Mcz Convective zone mass from Pinsonneault et al.
2001ApJ...556L..59P 2001ApJ...556L..59P; see section 3.5
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Byte-by-byte Description of file: table10.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Star Star name (1)
10- 16 E7.2 yr Time Evolutionary time (see section 3.2)
18- 29 A12 --- Planet Simulation and planet (2)
31- 34 F4.2 % H Predicted bulk hydrogen abundance (3)
36- 40 F5.2 % Mg Predicted bulk magnesium abundance (3)
42- 46 F5.2 % O Predicted bulk oxygen abundance (3)
48- 51 F4.2 % S Predicted bulk sulfur abundance (3)
53- 57 F5.2 % Fe Predicted bulk iron abundance (3)
59- 63 F5.2 % Al Predicted bulk aluminium abundance (3)
65- 69 F5.2 % Ca Predicted bulk calcium abundance (3)
71- 74 F4.2 % Na Predicted bulk sodium abundance (3)
76- 79 F4.2 % Ni Predicted bulk nickel abundance (3)
81- 84 F4.2 % Cr Predicted bulk chromium abundance (3)
86- 89 F4.2 % P Predicted bulk phosphorus abundance (3)
91- 94 F4.2 % Ti Predicted bulk titanium abundance (3)
96-100 F5.2 % Si Predicted bulk silicon abundance (3)
102-105 F4.2 % N Predicted bulk nitrogen abundance (3)
107-111 F5.2 % C Predicted bulk carbon abundance (3)
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Note (1): From line 463, the star name is very likely HD213240 and not
HD177830; corrected by CDS.
Note (2): simulation number is 1 to 4; the planet number (last digit)
increases with increasing distance from the host star.
Note (3): All values are in wt% of the final predicted planet for all seven
sets of disk conditions examined.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 22-May-2012