activity
20202026
most citedGravitational instability in a planet-forming disk

51 citations · 326 across the 31 of their papers we have counts for

collaborators

31 papers

astro-ph.EP2026

Substructures in Planet-Forming Disks with the SKAO

Yinhao Wu, Jessica Speedie, Sebastián Pérez +33

Disks of gas and dust orbiting young stars are the arenas and material reservoirs for planet formation. Over the past decade, multiwavelength observations, from infrared to radio,…

astro-ph.EP2026

An Agnostic Machine Learning Model of Photosynthetic Habitability

Callum Gray, Cassandra Hall, Stefano Santabarbara +5

The search for exoplanet biosignatures is guided by whether planetary environments can sustain photosynthesis. As such, the Photosynthetic Habitable Zone (PHZ) was recently propose…

astro-ph.IM2026

Denoising Interferometric Observations Using Visibility-Informed Neural Networks

Jason P. Terry, Cassandra Hall, Sergei Gleyzer

The upcoming observations from the Square Kilometer Array Observatory will provide the astronomical community with a wealth of observations of important objects at long wavelengths…

astro-ph.EP2026★ 1 cited

exoALMA XX: Tomographic Detection of Embedded Planets in Protoplanetary Disks

Andres F. Izquierdo, Jaehan Bae, Stefano Facchini +32

The exoALMA Large Program has revealed a wealth of substructures in the dust and molecular line emission of several protoplanetary discs, suggesting that planet formation may unfol…

astro-ph.EP2026★ 1 cited

exoALMA XXIII. Estimating Disk and Planet Properties from Dust Morphologies with DBNets2.0

Alessandro Ruzza, Giuseppe Lodato, Giovanni Rosotti +21

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…

astro-ph.EP2026

exoALMA. XXIV. Formaldehyde Emission in Protoplanetary Disks of exoALMA Compared with Their Properties and Dynamical State

Felipe Alarcón, Stefano Facchini, Leon Trapman +15

The presence of asymmetries and substructures in protoplanetary disks, revealed by both dust and gas emission, highlights the potential interplay and the broader connection between…

astro-ph.EP2026

exoALMA XXII: A Two-dimensional Atlas of Deviations from Keplerian Disks

Misato Fukagawa, Andrés F. Izquierdo, Jochen Stadler +35

Protoplanetary disks are the birthplaces of planetary systems, and deviations from Keplerian rotation imprinted in disk gas kinematics serve as key tracers of physical processes an…

astro-ph.EP2025

exoALMA. XVIII. Interpreting large scale kinematic structures as moderate warping

Andrew J. Winter, Myriam Benisty, Andrés F. Izquierdo +28

The exoALMA program gave an unprecedented view of the complex kinematics of protoplanetary disks, revealing diverse structures that remain poorly understood. We show that moderate…

astro-ph.EP2025

SO emission in the dynamically perturbed protoplanetary disks around CQ Tau and MWC 758

Francesco Zagaria, Haochang Jiang, Gianni Cataldi +25

We report the serendipitous detection of the SO (219.949 GHz) rotational transition in archival Atacama Large Millimeter/submillimeter Array (ALMA) observations of th…

astro-ph.EP2025

ExoALMA XIII. gas masses from N2H+ and C18O: a comparison of protoplanetary gas disk mass measurement techniques

Leon Trapman, Cristiano Longarini, Giovanni P. Rosotti +37

The gas masses of protoplanetary disks are important but elusive quantities. In this work we present new ALMA observations of N2H+ (3-2) for 11 exoALMA disks. N2H+ is a molecule se…

astro-ph.EP2025★ 25 cited

exoALMA. VI. Rotating under Pressure: Rotation curves, azimuthal velocity substructures, and pressure variations

Jochen Stadler, Myriam Benisty, Andrew J. Winter +36

The bulk motion of the gas in protoplanetary disks around newborn stars is nearly Keplerian. By leveraging the high angular and spectral resolution of ALMA, we can detect small-sca…

astro-ph.EP2025★ 16 cited

exoALMA. XVII. Characterizing the Gas Dynamics around Dust Asymmetries

Lisa Wölfer, Marcelo Barraza-Alfaro, Richard Teague +31

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 gr…

astro-ph.EP2025★ 17 cited

exoALMA XV: Interpreting the height of CO emission layer

Giovanni P. Rosotti, Cristiano Longarini, Teresa Paneque-Carreño +32

The availability of exquisite data and the development of new analysis techniques have enabled the study of emitting heights in proto-planetary disks. In this paper we introduce a…

astro-ph.EP2025★ 37 cited

exoALMA III: Line-intensity Modeling and System Property Extraction from Protoplanetary Disks

Andrés F. Izquierdo, Jochen Stadler, Maria Galloway-Sprietsma +37

The ALMA large program exoALMA offers a unique window into the three-dimensional physical and dynamical properties of 15 circumstellar disks where planets may be actively forming.…

astro-ph.EP2025★ 37 cited

exoALMA V: Gaseous Emission Surfaces and Temperature Structures

Maria Galloway-Sprietsma, Jaehan Bae, Andrés F. Izquierdo +35

Analysis of the gaseous component in protoplanetary disks can inform us about their thermal and physical structure, chemical composition, and kinematic properties, all of which are…

astro-ph.EP2025

exoALMA XI: ALMA Observations and Hydrodynamic Models of LkCa 15: Implications for Planetary Mass Companions in the Dust Continuum Cavity

Charles H. Gardner, Andrea Isella, Hui Li +43

In the past decade, the Atacama Large Millimeter/submillimeter Array (ALMA) has revealed a plethora of substructures in the disks surrounding young stars. These substructures have…

astro-ph.EP2025

exoALMA. XVI. Predicting Signatures of Large-scale Turbulence in Protoplanetary Disks

Marcelo Barraza-Alfaro, Mario Flock, William Béthune +31

Turbulent gas motions drive planet formation and protoplanetary disk evolution. However, empirical constraints on turbulence are scarce, halting our understanding of its nature. Re…

astro-ph.EP2025

exoALMA XIV. Gas Surface Densities in the RX J1604.3-2130 A Disk from Pressure-broadened CO Line Wings

Tomohiro C. Yoshida, Pietro Curone, Jochen Stadler +31

The gas surface density is one of the most relevant physical quantities in protoplanetary disks. However, its precise measurement remains highly challenging due to the lack of a di…

astro-ph.EP2025★ 10 cited

exoALMA. VIII. Probabilistic Moment Maps and Data Products using Non-parametric Linear Models

Thomas Hilder, Andrew R. Casey, Daniel J. Price +33

Extracting robust inferences on physical quantities from disk kinematics measured from Doppler-shifted molecular line emission is challenging due to the data's size and complexity.…

astro-ph.EP2025

exoALMA IX: Regularized Maximum Likelihood Imaging of Non-Keplerian Features

Brianna Zawadzki, Ian Czekala, Maria Galloway-Sprietsma +32

The planet-hunting ALMA large program exoALMA observed 15 protoplanetary disks at ~0.15" angular resolution and ~100 m/s spectral resolution, characterizing disk structures and kin…

astro-ph.EP2025★ 36 cited

exoALMA XII: Weighing and sizing exoALMA disks with rotation curve modelling

Cristiano Longarini, Giuseppe Lodato, Giovanni Rosotti +38

The exoALMA large program offers a unique opportunity to investigate the fundamental properties of protoplanetary disks, such as their masses and sizes, providing important insight…

astro-ph.EP2025★ 36 cited

exoALMA IV: Substructures, Asymmetries, and the Faint Outer Disk in Continuum Emission

Pietro Curone, Stefano Facchini, Sean M. Andrews +36

The exoALMA Large Program targeted a sample of 15 disks to study gas dynamics within these systems, and these observations simultaneously produced continuum data at 0.9 mm (331.6 G…

astro-ph.EP2025

exoALMA. X. channel maps reveal complex CO abundance distributions and a variety of kinematic structures with evidence for embedded planets

Christophe Pinte, John D. Ilee, Jane Huang +34

We analyze the CO data cubes of the disks in the exoALMA program. 13/15 disks reveal a variety of kinematic substructures in individual channels: large-scale arcs or…

astro-ph.EP2025★ 1 cited

exoALMA I. Science Goals, Project Design and Data Products

Richard Teague, Myriam Benisty, Stefano Facchini +40

Planet formation is a hugely dynamic process requiring the transport, concentration and assimilation of gas and dust to form the first planetesimals and cores. With access to extre…