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Related papers: Tracing large-scale structures in circumstellar di…

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Protoplanets can interact with their natal disks and generate gas and dust substructures such as gaps and rings. However, how these planet-induced substructures affect the disk temperature, and how that in turn influences the substructures,…

Earth and Planetary Astrophysics · Physics 2025-07-04 Kan Chen , Paola Pinilla , Mihkel Kama

Empirical evidence of planets in gas-rich circumstellar discs is required to constrain giant planet formation theories. Here we study the kinematic patterns which arise from planet-disc interactions and their observability in CO rotational…

Earth and Planetary Astrophysics · Physics 2018-07-04 Sebastian Perez , Simon Casassus , Pablo Benítez-Llambay

Understanding planet formation requires to discern how dust grows in protoplanetary disks. An important parameter to measure in disks is the maximum dust grain size present. This is usually estimated through measurements of the dust opacity…

Interferometric observations of protoplanetary disks by VLTI and ALMA have greatly improved our understanding of the detailed structure of these planetary birthplaces. These observations have revealed a variety of large-scale disk…

Solar and Stellar Astrophysics · Physics 2025-06-23 Lukas Hildebrandt , Anton Krieger , Hubert Klahr , Julia Kobus , Alexander Bensberg , Sebastian Wolf

The recent ALMA DSHARP survey provided illuminating results on the diversity of substructures in planet forming disks. These substructures trace pebble-sized grains accumulated at local pressure maxima, possibly due to planet-disk…

Solar and Stellar Astrophysics · Physics 2020-06-10 Deryl Long , Ke Zhang , Richard Teague , Edwin Bergin

Observations of substructure in protoplanetary disks have largely been limited to the brightest and largest disks, excluding the abundant population of compact disks which are likely sites of planet formation. Here, we reanalyze ~0.1'',…

Earth and Planetary Astrophysics · Physics 2023-08-02 Shangjia Zhang , Matt Kalscheur , Feng Long , Ke Zhang , Deryl E. Long , Edwin A. Bergin , Zhaohuan Zhu , Leon Trapman

We exploit long-baseline ALMA sub-mm observations of the lensed star-forming galaxy SDP 81 at z=3.042 to investigate the properties of inter-stellar medium on scales of 50-100pc. The kinematics of the CO gas within this system are well…

Gravitational interactions between a protoplanetary disk and its embedded planet is one of the formation mechanisms of gaps and rings found in recent ALMA observations. To quantify the gap properties measured in not only surface density but…

Earth and Planetary Astrophysics · Physics 2019-11-06 Han Gyeol Yun , Woong-Tae Kim , Jaehan Bae , Cheongho Han

Protostellar discs are mostly modelled as circular structures of gas and dust orbiting a protostar. However, a number of physical mechanisms, e.g. the presence of a (sub)stellar companion or initial axial asymmetry, can cause the gas and…

Earth and Planetary Astrophysics · Physics 2024-06-26 Enrico Ragusa , Elliot Lynch , Guillaume Laibe , Cristiano Longarini , Simone Ceppi

Transitional disks around young stars are promising candidates to look for recently formed, embedded planets. Planet-disk interaction models predict that planets clear a gap in the gas while trapping dust at larger radii. Other physical…

We explain the axisymmetric gaps seen in recent long-baseline observations of the HL Tau protoplanetary disc with the Atacama Large Millimetre/Submillimetre Array (ALMA) as being due to the different response of gas and dust to embedded…

Earth and Planetary Astrophysics · Physics 2015-09-09 Giovanni Dipierro , Daniel Price , Guillaume Laibe , Kieran Hirsh , Alice Cerioli , Giuseppe Lodato

The exoALMA large program provided an unprecedented view of the morphology and kinematics of 15 circumstellar disks, offering a biased but homogenous and well-characterized sample for population-level analysis. Continuum observations…

Transition disks with large inner dust cavities are thought to host massive companions. However, the disk structure inside the companion orbit and how material flows toward an actively accreting star remain unclear. We present a high…

Earth and Planetary Astrophysics · Physics 2020-04-15 Logan Francis , Nienke van der Marel

Recent observations of gaps and non-axisymmetric features in the dust distributions of transition disks have been interpreted as evidence of embedded massive protoplanets. However, comparing the predictions of planet-disk interaction models…

Earth and Planetary Astrophysics · Physics 2015-09-16 Alexander J. W. Richert , Wladimir Lyra , Aaron Boley , Mordecai-Mark Mac Low , Neal Turner

High-angular resolution observations at sub-millimeter/millimeter wavelengths of disks surrounding young stars have shown that their morphology is made of azimuthally-symmetric or point-symmetric substructures, in some cases with spiral…

Earth and Planetary Astrophysics · Physics 2021-10-27 Diana Blanco , Luca Ricci , Mario Flock , Neal Turner

Young stellar objects (YSOs) are surrounded by protoplanetary disks, which are the birthplace of young planets. Ring and gap structures are observed among evolved protoplanetary disks, often interpreted as a consequence of planet formation.…

(abridged) Magnetic fields are fundamental to the accretion dynamics of protoplanetary disks and they likely affect planet formation. Typical methods to study the magnetic field morphology observe the polarization of dust or spectral lines.…

Solar and Stellar Astrophysics · Physics 2022-01-19 Boy Lankhaar , Wouter Vlemmings , Per Bjerkeli

The formation and earliest stages of protoplanetary discs remain poorly constrained by observations. ALMA will soon revolutionise this field. Therefore, it is important to provide predictions which will be valuable for the interpretation of…

Solar and Stellar Astrophysics · Physics 2015-06-15 T. A. Douglas , P. Caselli , J. D. Ilee , A. C. Boley , T. W. Hartquist , R. H. Durisen , J. M. C. Rawlings
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