2010ApJ...712L..73M

Query : 2010ApJ...712L..73M

2010ApJ...712L..73M - Astrophys. J., 712, L73-L76 (2010/March-3)

Minimum radii of super-earths: constraints from giant impacts.

MARCUS R.A., SASSELOV D., HERNQUIST L. and STEWART S.T.

Abstract (from CDS):

The detailed interior structure models of super-Earth planets show that there is degeneracy in the possible bulk compositions of a super-Earth at a given mass and radius, determined via radial velocity and transit measurements, respectively. In addition, the upper and lower envelopes in the mass-radius relationship, corresponding to pure ice planets and pure iron planets, respectively, are not astrophysically well motivated with regard to the physical processes involved in planet formation. Here we apply the results of numerical simulations of giant impacts to constrain the lower bound in the mass-radius diagram that could arise from collisional mantle stripping of differentiated rocky/iron planets. We provide a very conservative estimate for the minimum radius boundary for the entire mass range of large terrestrial planets. This envelope is a readily testable prediction for the population of planets to be discovered by the Kepler mission.

Abstract Copyright: ∼

Journal keyword(s): planetary systems - planets and satellites: formation

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 NAME G 139-21b Pl 17 15 18.9339850845 +04 57 50.066612336           ~ 845 1

Query : 2010ApJ...712L..73M

Basic data :
NAME G 139-21b -- Extra-solar Planet
Other object types: otypes_help 		Pl (), Pl? (), * (GJ)
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 48.9435356455 +05 01 47.135421918 [ 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
Parallaxes (mas): 		68.2986 [0.0652] A 2020yCat.1350....0G
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GJ 1214 b NAME LHS 3275b NAME G 139-21b NAME-IAU Enaiposha

References (845 between 1850 and 2026) (Total 845)
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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