Stellar obliquities in exoplanetary systems

SH Albrecht, RI Dawson, JN Winn - Publications of the …, 2022 - iopscience.iop.org
The rotation of a star and the revolutions of its planets are not necessarily aligned. This
article reviews the measurement techniques, key findings, and theoretical interpretations …

Obliquities of hot Jupiter host stars: Evidence for tidal interactions and primordial misalignments

S Albrecht, JN Winn, JA Johnson… - The Astrophysical …, 2012 - iopscience.iop.org
We provide evidence that the obliquities of stars with close-in giant planets were initially
nearly random, and that the low obliquities that are often observed are a consequence of …

The GAPS programme with HARPS-N at TNG-XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting …

AS Bonomo, S Desidera, S Benatti, F Borsa… - Astronomy & …, 2017 - aanda.org
We carried out a Bayesian homogeneous determination of the orbital parameters of 231
transiting giant planets (TGPs) that are alone or have distant companions; we employed …

The orbital eccentricity of small planet systems

V Van Eylen, S Albrecht, X Huang… - The Astronomical …, 2019 - iopscience.iop.org
We determine the orbital eccentricities of individual small Kepler planets, through a
combination of asteroseismology and transit light-curve analysis. We are able to constrain …

Homogeneous studies of transiting extrasolar planets–IV. Thirty systems with space-based light curves

J Southworth - Monthly Notices of the Royal Astronomical …, 2011 - academic.oup.com
I calculate the physical properties of 32 transiting extrasolar planet and brown-dwarf systems
from existing photometric observations and measured spectroscopic parameters. The …

Hot stars with hot Jupiters have high obliquities

JN Winn, D Fabrycky, S Albrecht… - The Astrophysical …, 2010 - iopscience.iop.org
We show that stars with transiting planets for which the stellar obliquity is large are
preferentially hot (T eff> 6250 K). This could explain why small obliquities were observed in …

Friends of hot Jupiters. I. A radial velocity search for massive, long-period companions to close-in gas giant planets

HA Knutson, BJ Fulton, BT Montet, M Kao… - The Astrophysical …, 2014 - iopscience.iop.org
In this paper we search for distant massive companions to known transiting gas giant
planets that may have influenced the dynamical evolution of these systems. We present new …

The mass of KOI-94d and a relation for planet radius, mass, and incident flux

LM Weiss, GW Marcy, JF Rowe… - The Astrophysical …, 2013 - iopscience.iop.org
We measure the mass of a modestly irradiated giant planet, KOI-94d. We wish to determine
whether this planet, which is in a 22 day orbit and receives 2700 times as much incident flux …

Spin-orbit angle measurements for six southern transiting planets-New insights into the dynamical origins of hot Jupiters

AHMJ Triaud, AC Cameron, D Queloz… - Astronomy & …, 2010 - aanda.org
Context. Several competing scenarios for planetary-system formation and evolution seek to
explain how hot Jupiters came to be so close to their parent stars. Most planetary …

Stellar clustering shapes the architecture of planetary systems

AJ Winter, JMD Kruijssen, SN Longmore, M Chevance - Nature, 2020 - nature.com
Planet formation is generally described in terms of a system containing the host star and a
protoplanetary disk,–, of which the internal properties (for example, mass and metallicity) …