Results 81 to 90 of about 3,232,660 (177)

Planet formation constraints from exoplanet population synthesis and simulation based inference

Frontiers in Astronomy and Space Sciences
This work introduces a statistical framework to obtain Bayesian constraints on planet formation parameters, which offers a probabilistic interpretation of uncertainties and degeneracies contained within planet formation models.
Jason Ran, Mihkel Kama, Mihkel Kama, Anna Sommerville-Thomas   +3 more
doaj   +1 more source

Exploration of the inner region of the system HD 142527★

Astronomy & Astrophysics
Context. HD 142527 is a well-studied intermediate-mass T Tauri star surrounded by a transitional disk with a large dust cavity, spiral structures, and an accreting low-mass companion.
Tran T. M. H., Langlois M., Flasseur O., Augereau J.-C., Boccaletti A., Delorme P., Gratton R., Kaszczyc A., Lagrange A.-M.   +8 more
doaj   +1 more source

The circumbinary disc of HD 34700A

Astronomy & Astrophysics
Context. ALMA observations have shown that substructures are ubiquitous in protoplanetary discs. A sub-group, the transition discs, shows large cavities and rings in the dust continuum.
Fasano D., Benisty M., Stadler J., Zagaria F., Ziampras A., Winter A., Bae J., Facchini S., Kurtovic N. T., Ragusa E., Teague R.   +10 more
doaj   +1 more source

The impact of stellar companions on disk and planet formation

, 2016
We present results from an ALMA survey of young systems in Taurus which detected over 25 new disks around both single and multiple stars with spectral types from M0 to M6.
Akeson, Rachel, Akeson, Rachel (5284750)
core   +1 more source

Concertos of planet-disk interactions: thermal and kinematic fingerprints [PDF]

Planets form in protoplanetary disks, where interactions with their natal environments shape disk evolution and leave observable signatures. High-resolution observations over the past decade have revealed substructures such as gaps, rings, and non ...
Chen, Kan
core   +1 more source

The Influence of General Relativity on the Spins of Celestial Bodies in Inclined Orbits

The Astrophysical Journal
Through the Rossiter–McLaughlin effect, several hot Jupiters have been found to exhibit spin–orbit misalignment and even retrograde orbits. The high obliquity observed in these planets can be attributed to two primary formation mechanisms, as summarized ...
Huan-Rong Yuan, Ying Wang, Xin Wu, Ji-Wei Xie, Hui-Gen Liu, Ji-Lin Zhou, Wei Sun   +6 more
doaj   +1 more source

The multi-wavelength vertical structure of the archetypal β Pictoris debris disk

Astronomy & Astrophysics
Context. Thermal imaging of debris disks is resolving the vertical height in an increasing number of systems, enabling the use of the vertical structure to decode the dynamical state of the planetary system. Aims.
Han Yinuo, Wyatt Mark C., Jankovic Marija R., Zhang Andrew, Dent William R. F., Hughes A. Meredith, Matrà Luca   +6 more
doaj   +1 more source

Gaps and rings: a near-universal trait of extended protoplanetary discs

Astronomy & Astrophysics
Context. Substructures such as rings, gaps, and cavities are commonly observed in protoplanetary discs and are thought to play a key role in dust evolution and planet formation.
Bosschaart Q., Guerra-Alvarado O. M., van der Marel N., Mulders G. D.   +3 more
doaj   +1 more source

exoALMA. XVII. Characterizing the Gas Dynamics around Dust Asymmetries

The Astrophysical Journal Letters
The key planet-formation processes in protoplanetary disks remain an active matter of research. One promising mechanism to radially and azimuthally trap millimeter-emitting dust grains, enabling them to concentrate and grow into planetesimals, is ...
Lisa Wölfer, Marcelo Barraza-Alfaro, Richard Teague, Pietro Curone, Myriam Benisty, Misato Fukagawa, Jaehan Bae, Gianni Cataldi, Ian Czekala, Stefano Facchini, Daniele Fasano, Mario Flock, Maria Galloway-Sprietsma, Himanshi Garg, Cassandra Hall, Jane Huang, John D. Ilee, Andrés F. Izquierdo, Kazuhiro Kanagawa, Geoffroy Lesur, Cristiano Longarini, Ryan A. Loomis, Francois Menard, Anika Nath, Ryuta Orihara, Christophe Pinte, Daniel J. Price, Giovanni Rosotti, Jochen Stadler, Gaylor Wafflard-Fernandez, Andrew J. Winter, Hsi-Wei Yen, Tomohiro C. Yoshida, Brianna Zawadzki   +33 more
doaj   +1 more source

A multi-fluid approach for polydisperse pebble accretion

Astronomy & Astrophysics
Context. Pebble accretion offers an efficient pathway to form planets, driven by a constant supply of inward drifting mass and an accretion efficiency enhanced by gas drag. While most studies assume a single pebble size (monodisperse), real discs contain
Konijn T. J., Paardekooper S.-J.
doaj   +1 more source