2022ApJ...926...62C


Query : 2022ApJ...926...62C

2022ApJ...926...62C - Astrophys. J., 926, 62-62 (2022/February-2)

Kepler-167e as a Probe of the Formation Histories of Cold Giants with Inner Super-Earths.

CHACHAN Y., DALBA P.A., KNUTSON H.A., FULTON B.J., THORNGREN D., BEICHMAN C., CIARDI D.R., HOWARD A.W. and VAN ZANDT J.

Abstract (from CDS):

The observed correlation between outer giant planets and inner super-Earths is emerging as an important constraint on planet formation theories. In this study, we focus on Kepler-167, which is currently the only system known to contain both inner transiting super-Earths and a confirmed outer transiting gas giant companion beyond 1 au. Using long-term radial velocity monitoring, we measure the mass of the gas giant Kepler-167e (P = 1071 days) to be {1.01}_{-0.15}^{+0.16} M J, thus confirming it as a Jupiter analog. We refit the Kepler photometry to obtain updated radii for all four planets. Using a planetary structure model, we estimate that Kepler-167e contains 66 ± 19 M of solids and is significantly enriched in metals relative to its solar-metallicity host star. We use these new constraints to explore the broader question of how systems like Kepler-167 form in the pebble accretion framework for giant planet core formation. We utilize simple disk evolution models to demonstrate that more massive and metal-rich disks, which are the most favorable sites for giant planet formation, can also deliver enough solids to the inner disk to form systems of super-Earths. We use these same models to constrain the nature of Kepler-167's protoplanetary disk and find that it likely contained >=300 M of dust and was >=40 au in size. These values overlap with the upper end of the observed dust mass and size distributions of Class 0 and I disks and are also consistent with the observed occurrence rate of Jupiter analogs around Sun-like stars.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Planet formation - Super Earths - Extrasolar gaseous giant planets - Radial velocity - Protoplanetary disks

Simbad objects: 13

goto Full paper

goto View the references in ADS

Number of rows : 13
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 HD 16160 PM* 02 36 04.9013368983 +06 53 12.383654295   6.81   5.2   K3V 543 0
2 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2311 0
3 M 42 HII 05 35 17 -05 23.4           ~ 4057 0
4 HD 47186 PM* 06 36 08.7879310512 -27 37 20.268367464   8.36 7.63     G6V 143 1
5 Kepler-16b Pl 19 16 18.1758378936 +51 45 26.782726104           ~ 154 1
6 Kepler-1704b Pl 19 24 48.2988338352 +51 08 39.405102360           ~ 19 0
7 Kepler-1514b Pl 19 30 30.5892070488 +37 51 36.487214028           ~ 27 0
8 Kepler-167 Er* 19 30 38.0261896920 +38 20 43.437246900   15.255 14.284 13.989   K3 73 0
9 Kepler-167d Pl 19 30 38.0261896920 +38 20 43.437246900           ~ 25 0
10 Kepler-167b Pl 19 30 38.0261896920 +38 20 43.437246900           ~ 26 0
11 Kepler-167e Pl 19 30 38.0261896920 +38 20 43.437246900           ~ 37 0
12 Kepler-34b Pl 19 45 44.5974898536 +44 38 29.610983076           ~ 105 1
13 BD+47 2936 EB* 19 50 50.2472976936 +48 04 51.101390496       8.8   K4V 293 2

To bookmark this query, right click on this link: simbad:objects in 2022ApJ...926...62C and select 'bookmark this link' or equivalent in the popup menu