J/A+A/547/A105 D-burning in core accretion objects (Molliere+, 2012)
Deuterium burning in objects forming via the core accretion scenario.
Brown dwarfs or planets?
Molliere P., Mordasini C.
<Astron. Astrophys. 547, A105 (2012)>
=2012A&A...547A.105M 2012A&A...547A.105M
ADC_Keywords: Planets ; Models, evolutionary
Keywords: planets and satellites: formation - planetary systems -
planets and satellites: interiors - methods: numerical - brown dwarfs
Abstract:
Our aim is to study deuterium burning in objects forming according to
the core accretion scenario in the hot and cold start assumption and
what minimum deuterium burning mass limit is found for these objects.
We also study how the burning process influences the structure and
luminosity of the objects. Furthermore we want to test and verify our
results by comparing them to already existing hot start simulations
which did not consider, however, the formation process.
Description:
The files contain the numerical data of the formation and subsequent
evolution of cold and hot start objects (using the fiducial model)
presented in our paper.
The filenames denote the final mass and whether the object has formed
hot or cold.
Example: "cold10mj.dat" stands for a cold start object with a final
mass of 10 jovian masses.
Please note the following:
As the surface conditions are given by the disk nebula in the attached
phase and as the runaway accretion luminosity does not contribute to
the internal luminosity for a cold start object, it does not hold that
the total luminosity equals the luminosity deduced from the
Stefan-Boltzmann law all the time.
For the calculations the fiducial model was used as given in the
paper. The albedo of the object is 0.343.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
cold10mj.dat 251 1249 10 jovian mass cold start object
cold11mj.dat 251 1250 11 jovian mass cold start object
cold12mj.dat 251 1260 12 jovian mass cold start object
cold13mj.dat 251 1319 13 jovian mass cold start object
cold14mj.dat 251 1478 14 jovian mass cold start object
cold15mj.dat 251 1509 15 jovian mass cold start object
cold16mj.dat 251 1511 16 jovian mass cold start object
cold17mj.dat 251 1507 17 jovian mass cold start object
cold18mj.dat 251 1499 18 jovian mass cold start object
cold19mj.dat 251 1508 19 jovian mass cold start object
cold20mj.dat 251 1517 20 jovian mass cold start object
cold21mj.dat 251 1513 21 jovian mass cold start object
cold22mj.dat 251 1516 22 jovian mass cold start object
cold23mj.dat 251 1518 23 jovian mass cold start object
hot10mj.dat 251 1392 10 jovian mass hot start object
hot11mj.dat 251 1405 11 jovian mass hot start object
hot12mj.dat 251 1429 12 jovian mass hot start object
hot13mj.dat 251 1544 13 jovian mass hot start object
hot14mj.dat 251 1682 14 jovian mass hot start object
hot15mj.dat 251 1720 15 jovian mass hot start object
hot16mj.dat 251 1733 16 jovian mass hot start object
hot17mj.dat 251 1745 17 jovian mass hot start object
hot18mj.dat 251 1751 18 jovian mass hot start object
hot19mj.dat 251 1747 19 jovian mass hot start object
hot20mj.dat 251 1722 20 jovian mass hot start object
hot21mj.dat 251 1709 21 jovian mass hot start object
hot22mj.dat 251 1704 22 jovian mass hot start object
hot23mj.dat 251 1703 23 jovian mass hot start object
hot24mj.dat 251 1706 24 jovian mass hot start object
hot25mj.dat 251 1710 25 jovian mass hot start object
hot26mj.dat 251 1714 26 jovian mass hot start object
hot27mj.dat 251 1719 27 jovian mass hot start object
hot28mj.dat 251 1726 28 jovian mass hot start object
hot29mj.dat 251 1731 29 jovian mass hot start object
hot30mj.dat 251 1737 30 jovian mass hot start object
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Byte-by-byte Description of file: cold*.dat hot*.dat
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Bytes Format Units Label Explanations
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1- 20 E20.19 yr t [88465/1.99701e+10] Time
22- 41 E20.19 Mgeo Mc [0.740/35.223] Core mass in earth masses (1)
43- 62 E20.19 Mgeo Mt [0.740/9551.21] Total mass in earth masses (1)
64- 83 E20.19 Rjup R [0.887/101.46] Radius in jovian radii (1)
85-104 E20.19 K Teff [154/3020] Effective temperature
106-125 E20.19 --- Ent [6.4/14.6] Entropy on core interface in
kB/baryon (units of Boltzmann's kB)
127-146 E20.19 Lsun Lt [1.70869e-08/0.13871] Total luminosity (1)
148-167 E20.19 Lsun Ld [0/0.285] Deuterium-burning luminosity (1)
169-188 E20.19 [cm/s2] logg [-1.17/4.98] Surface gravity
190-209 E20.19 --- D/H [1.87772e-50/2e-05] Deuterium/Hydrogen ratio
211-230 E20.19 --- Theta [0.04/1] Electron degeneracy factor Θ_e
232-251 E20.19 Mgeo/yr dM/dt [0/0.0191] Gas accretion rate in Mearth/yr (1)
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Note (1): Rjup=7.15*109cm, Lsun=3.8271033erg/s, Mgeo=5.974241027g.
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Acknowledgements:
Paul Molliere, molliere(at)mpia.de
Max Planck Institute for Astronomy, Germany
(End) P. Molliere [Max Planck Inst. for Astron.], P. Vannier [CDS] 20-Sep-2012