2014ApJ...793..124U

Query : 2014ApJ...793..124U

2014ApJ...793..124U - Astrophys. J., 793, 124 (2014/October-1)

The role of carbon in extrasolar planetary geodynamics and habitability.

UNTERBORN C.T., KABBES J.E., PIGOTT J.S., REAMAN D.M. and PANERO W.R.

Abstract (from CDS):

The proportions of oxygen, carbon, and major rock-forming elements (e.g., Mg, Fe, Si) determine a planet's dominant mineralogy. Variation in a planet's mineralogy subsequently affects planetary mantle dynamics as well as any deep water or carbon cycle. Through thermodynamic models and high pressure diamond anvil cell experiments, we demonstrate that the oxidation potential of C is above that of Fe at all pressures and temperatures, indicative of 0.1-2 Earth-mass planets. This means that for a planet with (Mg+2Si+Fe+2C)/O > 1, excess C in the mantle will be in the form of diamond. We find that an increase in C, and thus diamond, concentration slows convection relative to a silicate-dominated planet, due to diamond's ∼3 order of magnitude increase in both viscosity and thermal conductivity. We assert then that in the C-(Mg+2Si+Fe)-O system, there is a compositional range in which a planet can be habitable. Planets outside of this range will be dynamically sluggish or stagnant, thus having limited carbon or water cycles leading to surface conditions inhospitable to life as we know it.

Abstract Copyright: ∼

Journal keyword(s): planets and satellites: composition - planets and satellites: interiors - planets and satellites: physical evolution - planets and satellites: tectonics - planets and satellites: terrestrial planets - stars: carbon

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 * 94 Cet PM* 03 12 46.4365677072 -01 11 45.955808988   5.631 5.070     F8.5V 478 1

Query : 2014ApJ...793..124U

Basic data :
* 94 Cet -- High Proper Motion Star
Other object types: otypes_help 		* (2015A&A,*,...), ** (**,ADS,...), PM* (2016ApJS,LTT,...), MIR (AKARI,WISEA), UV (TD1), NIR (2MASS), IR (IRAS)
ICRS coord. (ep=J2000) : 		03 12 46.4365677072 -01 11 45.955808988 (Optical) [ 0.1330 0.0988 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		03 10 13.1603680348 -01 22 54.850908550 [ 0.1330 0.0988 90 ]
Gal coord. (ep=J2000) : 		181.5040969151752 -47.3416604747808 [ 0.1330 0.0988 90 ]
Proper motions mas/yr : 		193.549 -68.888 [0.151 0.110 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 19.389 [0.0005] / z(spectroscopic) 0.000065 [0.000000] / cz 19.39 [0.00]
   (Opt) A 2018A&A...616A...7S
Parallaxes (mas): 		43.7027 [0.1325] A 2020yCat.1350....0G
Spectral type: 		F8.5V C 2003AJ....126.2048G
Fluxes (6) :
B 5.631 [0.014] D 2000A&A...355L..27H
V 5.070 [0.009] D 2000A&A...355L..27H
G 4.922250 [0.002991] C 2020yCat.1350....0G
J 4.17 [0.28] D 2003yCat.2246....0C
H 3.77 [0.24] D 2003yCat.2246....0C
K 3.75 [0.24] D 2003yCat.2246....0C
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 2
: 1 		: 471 Display criteria :

Identifiers (48) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

LTT 1515 FK5 116 N30 656 UBV 3104
* 94 Cet GC 3838 NLTT 10224 UCAC3 178-9414
** HJ 663A GCRV 1775 PLX 663 UCAC4 445-004277
ADS 2406 A GEN# +1.00019994 PMC 90-93 84 uvby98 100019994
AG-01 300 GJ 128 PPM 175267 WDS J03128-0112A
AKARI-IRC-V1 J0312465-011146 HD 19994 ROT 431 WEB 2887
BD-01 457 HIC 14954 SAO 130355 WISEA J031246.58-011146.4
CCDM J03128-0112A HIP 14954 SKY# 4813 YZ 91 684
CNS5 807 HR 962 SPOCS 155 YZ 0 3372
CSI-01 457 1 IDS 03077-0134 A TD1 1984 [RHG95] 572
CSI-01 457 3 IRAS 03102-0122 TIC 49845357 Gaia DR3 3265335443260522112
CSI-01 457 2 2MASS J03124644-0111458 TYC 4708-1423-1 Gaia DR2 3265335443260522112

References (478 between 1850 and 2026) (Total 478)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 15    Diameter : 2    Distance : 3    Rot : 15    Fe/H : 79    Plx : 4    PM : 5    SpT : 7   

   

Observing logs
Herschel : 2    ISO : 1    IUE : 2   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : * 94 Cet

Link by name to the catalogue in VizieR :

AG-01 300 AKARI-IRC-V1 J0312465-011146 BD-01 457 CCDM J03128-0112A FK5 116
GJ 128 HD 19994 HIC 14954 HIP 14954 HR 962
IRAS 03102-0122 2MASS J03124644-0111458 NLTT 10224 PLX 663 PPM 175267
SAO 130355 TD1 1984 TYC 4708-1423-1 UCAC3 178-9414 UCAC4 445-004277
uvby98 100019994 WDS J03128-0112A WISEA J031246.58-011146.4 Gaia DR3 3265335443260522112 Gaia DR2 3265335443260522112

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