2009ApJ...703.1131H

Query : 2009ApJ...703.1131H

2009ApJ...703.1131H - Astrophys. J., 703, 1131-1140 (2009/September-3)

Formation of the terrestrial planets from a narrow annulus.

HANSEN B.M.S.

Abstract (from CDS):

We show that the assembly of the solar system terrestrial planets can be successfully modeled with all of the mass initially confined to a narrow annulus between 0.7 and 1.0 AU. With this configuration, analogs of Mercury and Mars often form from the collisional evolution of material diffusing out of the annulus under the scattering of the forming Earth and Venus analogs. The final systems also possess eccentricities and inclinations that match the observations, without recourse to dynamical friction from remnant small body populations. Finally, the characteristic assembly timescale for Earth analogs is rapid in this model and consistent with cosmochemical models based on the ¹⁸²Hf-¹⁸²W isotopes. The agreement between this model and the observations suggests that terrestrial planet systems may also be formed in "planet traps," as has been proposed recently for the cores of giant planets in our solar system and others.

Abstract Copyright: ∼

Journal keyword(s): planetary systems: formation - planets and satellites: individual (Earth, Mars, Mercury, Venus) - solar system: 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	PSR B1257+12	Psr	13 00 03.1075	+12 40 55.155						~	546	1

Query : 2009ApJ...703.1131H

Basic data :

PSR B1257+12 -- Pulsar
Other object types:	`Psr (PSR)`
ICRS coord. (ep=J2000) :	`13 00 03.1075 +12 40 55.155 [ ] D 2013MNRAS.433..162Y`
FK4 coord. (ep=B1950 eq=1950) :	`12 57 33.0459 +12 57 08.745 [ ]`
Gal coord. (ep=J2000) :	`311.3020260 +75.4135657 [ ]`
Proper motions mas/yr :	`46.44 -84.87 [0.08 0.32 90] C` `2013MNRAS.433..162Y`
Parallaxes (mas):	`1.41 [0.08] C` `2013MNRAS.433..162Y`

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PSR B1257+12 NAME Lich PSR J1300+1240

References (546 between 1850 and 2026) (Total 546)
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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