Rotation Periods, Inclinations, and Obliquities of Cool Stars Hosting Directly Imaged Substellar Companions: Spin–Orbit Misalignments Are Common

BP Bowler, QH Tran, Z Zhang, M Morgan… - The Astronomical …, 2023 - iopscience.iop.org
The orientation between a star's spin axis and a planet's orbital plane provides valuable
information about the system's formation and dynamical history. For non-transiting planets at …

Emission line variability of young 10–30 MJup companions-I. The case of GQ Lup b and GSC 06214-00210 b

D Demars, M Bonnefoy, C Dougados… - Astronomy & …, 2023 - aanda.org
Context. Emission lines that are indicative of active accretion have been observed for a
number of low-mass companions (M< 30 M Jup) to stars. Line variability is ubiquitous on …

Accretion Properties of PDS 70b with MUSE

J Hashimoto, Y Aoyama, M Konishi… - The Astronomical …, 2020 - iopscience.iop.org
We report a new evaluation of the accretion properties of PDS 70b obtained with the Very
Large Telescope/Multi Unit Spectroscopic Explorer. The main difference from the previous …

Near-infrared Accretion Signatures from the Circumbinary Planetary-mass Companion Delorme 1 (AB) b

SK Betti, KB Follette, K Ward-Duong… - The Astrophysical …, 2022 - iopscience.iop.org
Accretion signatures from bound brown dwarf and protoplanetary companions provide
evidence for ongoing planet formation, and accreting substellar objects have enabled new …

The Giant Accreting Protoplanet Survey (GAPlanetS)—Results from a 6 yr Campaign to Image Accreting Protoplanets

KB Follette, LM Close, JR Males… - The Astronomical …, 2023 - iopscience.iop.org
Accreting protoplanets are windows into planet formation processes, and high-contrast
differential imaging is an effective way to identify them. We report results from the Giant …

The Comprehensive Archive of Substellar and Planetary Accretion Rates

SK Betti, KB Follette, K Ward-Duong… - The Astronomical …, 2023 - iopscience.iop.org
The Comprehensive Archive of Substellar and Planetary Accretion Rates - IOPscience This
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The planetary accretion shock. ii. grid of postshock entropies and radiative shock efficiencies for nonequilibrium radiation transport

GD Marleau, C Mordasini, R Kuiper - The Astrophysical Journal, 2019 - iopscience.iop.org
In the core-accretion formation scenario of gas giants, most of the gas accreting onto a
planet is processed through an accretion shock. In this series of papers we study this shock …

Mid-infrared Spectrum of the Disk around the Forming Companion GQ Lup B Revealed by JWST/MIRI

G Cugno, P Patapis, A Banzatti, M Meyer… - The Astrophysical …, 2024 - iopscience.iop.org
GQ Lup B is a forming brown dwarf companion (M∼ 10–30 MJ) showing evidence for an
infrared excess associated with a disk surrounding the companion itself. Here we present …

Deep Paβ Imaging of the Candidate Accreting Protoplanet AB Aur b

LI Biddle, BP Bowler, Y Zhou, K Franson… - The Astronomical …, 2024 - iopscience.iop.org
Giant planets grow by accreting gas through circumplanetary disks, but little is known about
the timescale and mechanisms involved in the planet-assembly process because few …

Observing the gas component of circumplanetary disks around wide-orbit planet-mass companions in the (sub) mm regime

C Rab, I Kamp, C Ginski, N Oberg… - Astronomy & …, 2019 - aanda.org
Context. Several detections of wide-orbit planet-mass/substellar companions around young
solar-like stars were reported in the last decade. The origin of those possible planets is still …