SIMBAD references

2019AJ....157..145M - Astron. J., 157, 145-145 (2019/April-0)

Long-period giant companions to three compact, multiplanet systems.

MILLS S.M., HOWARD A.W., WEISS L.M., STEFFEN J.H., ISAACSON H., FULTON B.J., PETIGURA E.A., KOSIAREK M.R., HIRSCH L.A. and BOISVERT J.H.

Abstract (from CDS):

Understanding the relationship between long-period giant planets and multiple smaller short-period planets is critical for formulating a complete picture of planet formation. This work characterizes three such systems. We present Kepler-65, a system with an eccentric (e = 0.28 ± 0.07) giant planet companion discovered via radial velocities (RVs) exterior to a compact, multiply transiting system of sub-Neptune planets. We also use precision RVs to improve mass and radius constraints on two other systems with similar architectures, Kepler-25 and Kepler-68. In Kepler-68 we propose a second exterior giant planet candidate. Finally, we consider the implications of these systems for planet formation models, particularly that the moderate eccentricity in Kepler-65's exterior giant planet did not disrupt its inner system.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): planetary systems

VizieR on-line data: <Available at CDS (J/AJ/157/145): table7.dat table8.dat table9.dat>

Simbad objects: 16

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2019.09.21-03:31:23

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