Mass, density, and formation constraints in the compact, sub-Earth Kepler-444 system including two Mars-mass planets

SM Mills, DC Fabrycky - The Astrophysical Journal Letters, 2017 - iopscience.iop.org
Kepler-444 is a five-planet system around a host star approximately 11 billion years old. The
five transiting planets all have sub-Earth radii and are in a compact configuration with orbital …

The orbit and mass of the third planet in the Kepler-56 system

OJ Otor, BT Montet, JA Johnson… - The Astronomical …, 2016 - iopscience.iop.org
While the vast majority of multiple-planet systems have orbital angular momentum axes that
align with the spin axis of their host star, Kepler-56 is an exception: its two transiting planets …

Kepler-79's low density planets

D Jontof-Hutter, JJ Lissauer, JF Rowe… - The Astrophysical …, 2014 - iopscience.iop.org
ABSTRACT Kepler-79 (KOI-152) has four planetary candidates ranging in size from 3.5 to 7
times the size of the Earth, in a compact configuration with orbital periods near a 1: 2: 4: 6 …

Discovery of a third transiting planet in the Kepler-47 circumbinary system

JA Orosz, WF Welsh, N Haghighipour… - The Astronomical …, 2019 - iopscience.iop.org
Of the nine confirmed transiting circumbinary planet systems, only Kepler-47 is known to
contain more than one planet. Kepler-47 b (the" inner planet") has an orbital period of 49.5 …

All six planets known to orbit Kepler-11 have low densities

JJ Lissauer, D Jontof-Hutter, JF Rowe… - The Astrophysical …, 2013 - iopscience.iop.org
The Kepler-11 planetary system contains six transiting planets ranging in size from 1.8 to 4.2
times the radius of Earth. Five of these planets orbit in a tightly packed configuration with …

A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations

K Masuda, JE Libby-Roberts… - The Astronomical …, 2024 - iopscience.iop.org
Kepler-51 is a≲ 1 Gyr old Sun-like star hosting three transiting planets with radii≈ 6–9 R⊕
and orbital periods≈ 45–130 days. Transit timing variations (TTVs) measured with past …

A dynamical analysis of the Kepler-80 system of five transiting planets

MG MacDonald, D Ragozzine… - The Astronomical …, 2016 - iopscience.iop.org
Kepler has discovered hundreds of systems with multiple transiting exoplanets which hold
tremendous potential both individually and collectively for understanding the formation and …

Five planets transiting a ninth magnitude star

A Vanderburg, JC Becker, MH Kristiansen… - The Astrophysical …, 2016 - iopscience.iop.org
The Kepler mission has revealed a great diversity of planetary systems and architectures,
but most of the planets discovered by Kepler orbit faint stars. Using new data from the K2 …

VERY LOW DENSITY PLANETS AROUND KEPLER-51 REVEALED WITH TRANSIT TIMING VARIATIONS AND AN ANOMALY SIMILAR TO A PLANET–PLANET …

K Masuda - The Astrophysical Journal, 2014 - iopscience.iop.org
We present an analysis of the transit timing variations (TTVs) in the multi-transiting planetary
system around Kepler-51 (KOI-620). This system consists of two confirmed transiting …

The architecture and formation of the Kepler-30 planetary system

F Panichi, K Goździewski… - Monthly Notices of …, 2018 - academic.oup.com
We study the orbital architecture, physical characteristics of planets, formation and long-term
evolution of the Kepler-30 planetary system, detected and announced in 2012 by the Kepler …