2015ApJ...801...40S

Query : 2015ApJ...801...40S

2015ApJ...801...40S - Astrophys. J., 801, 40 (2015/March-1)

The persistence of oceans on Earth-like planets: insights from the deep-water cycle.

SCHAEFER L. and SASSELOV D.

Abstract (from CDS):

In this paper we present a series of models for the deep-water cycle on super-Earths experiencing plate tectonics. The deep-water cycle can be modeled through parameterized convection models coupled with a volatile recycling model. The convection of the silicate mantle is linked to the volatile cycle through the water-dependent viscosity. Important differences in surface water content are found for different parameterizations of convection. Surface oceans are smaller and more persistent for single layer convection, rather than convection by boundary layer instability. Smaller planets have initially larger oceans but also return that water to the mantle more rapidly than larger planets. Super-Earths may therefore be less habitable in their early years than smaller planets, but their habitability (assuming stable surface conditions) will persist much longer.

Abstract Copyright: ∼

Journal keyword(s): convection - planets and satellites: oceans - planets and satellites: tectonics - planets and satellites: terrestrial planets

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 G 139-21 PM* 17 15 18.9339850845 +04 57 50.066612336     14.71 13.26 11.50 M4.5V 372 1

Query : 2015ApJ...801...40S

Basic data :
G 139-21 -- High Proper Motion Star
Other object types: otypes_help 		* (2014AJ,CNS5,...), PM* (2013MNRAS,LHS,...), ** (**,WDS), NIR (2MASS), MIR (WISEA)
ICRS coord. (ep=J2000) : 		17 15 18.9339850845 +04 57 50.066612336 (Optical) [ 0.0459 0.0382 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		17 12 48.9434278184 +05 01 47.137524448 [ 0.0459 0.0382 90 ]
Gal coord. (ep=J2000) : 		026.1640350986908 +23.6107452581176 [ 0.0459 0.0382 90 ]
Proper motions mas/yr : 		580.202 -749.713 [0.059 0.047 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 16 [5] / z(~) 0.000053 [0.000017] / cz 16.00 [5.00]
   (Opt) C 2014AJ....147...20N
Parallaxes (mas): 		68.2986 [0.0652] A 2020yCat.1350....0G
Spectral type: 		M4.5V C 2014AJ....148...91L
Fluxes (7) :
V 14.71 [~] D 2024AJ....167..196K
R 13.26 [~] D 2024AJ....167..196K
G 12.996782 [0.002925] C 2020yCat.1350....0G
I 11.50 [~] D 2024AJ....167..196K
J 9.750 [0.024] C 2003yCat.2246....0C
H 9.094 [0.024] C 2003yCat.2246....0C
K 8.782 [0.020] C 2003yCat.2246....0C
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Hierarchy : number of linked objects
whatever the membership probability is (see description here ) :

: 1 		Display criteria :

Identifiers (22) :
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LHS 3275 LSPM J1715+0457 TIC 467929202 WISEA J171519.33+045742.2
** GJ 1214A 2MASS J17151894+0457496 UBV M 53793 [RHG95] 2724
CNS5 4231 NAME-IAU Orkaria UCAC4 475-063069 Gaia DR3 4393265392168829056
GEN# +9.80139021 NLTT 44431 USNO-B1.0 0949-00280047 Gaia DR2 4393265392167891712
G 139-21 PLX 3913.01 USNO 256
GJ 1214 PM J17153+0457 WDS J17153+0458A

References (372 between 1850 and 2026) (Total 372)
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 : 2    Distance : 3    Var : 1    Fe/H : 18    Plx : 7    PM : 11    SpT : 4   

   

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Link by name to the catalogue in VizieR :

LHS 3275 G 139-21 GJ 1214 LSPM J1715+0457 2MASS J17151894+0457496
NLTT 44431 UCAC4 475-063069 USNO-B1.0 0949-00280047 WDS J17153+0458A WISEA J171519.33+045742.2
Gaia DR3 4393265392168829056 Gaia DR2 4393265392167891712

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