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114 papers
Grain growth in protoplanetary disks in the Upper Scorpius revealed by millimeter-wave spectral indices
Tau Bito, Akimasa Kataoka, Takahiro Ueda +3
The measurement of dust size from millimeter-wavelength spectra provides direct constraints on grain growth in protoplanetary disks. The spectral indices between 0.88 mm and 2.9 mm…
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…
Constraints on the physical origin of large cavities in transition disks from multi-wavelength dust continuum emission
Anibal Sierra, Laura M. Pérez, Benjamín Sotomayor +8
The physical origin of the large cavities observed in transition disks is to date still unclear. Different physical mechanisms (e.g., a companion, dead zones, enhanced grain growth…
VLT/MUSE detection of accretion-ejection associated with the close stellar companion in the HT Lup system
Sebastián Jorquera, Mickaël Bonnefoy, Laura M. Pérez +14
The accretion/ejection processes in T-Tauri stars are fundamental to their physical evolution, while also impacting the properties and evolution of the circumstellar material at a…
A Dust-Trapping Ring in the Planet-Hosting Disk of Elias 2-24
Adolfo S. Carvalho, Laura M. Perez, Anibal Sierra +12
Rings and gaps are among the most widely observed forms of substructure in protoplanetary disks. A gap-ring pair may be formed when a planet carves a gap in the disk, which produce…
Inner edges of planetesimal belts: collisionally eroded or truncated?
Amaia Imaz Blanco, Sebastian Marino, Luca Matrà +9
The radial structure of debris discs can encode important information about their dynamical and collisional history. In this paper we present a 3-phase analytical model to analyse…
Distributions of gas and small and large grains in the LkH disk trace a young planetary system
P. Pinilla, M. Benisty, N. T. Kurtovic +13
[abridged] We present new scattered light and millimeter observations of the protoplanetary disk around LkH, using SPHERE/VLT and ALMA, respectively. The scattered-light SP…
Distribution of solids in the rings of the HD 163296 disk: a multiwavelength study
G. Guidi, A. Isella, L. Testi +15
In this paper we analyze new observations from ALMA and VLA, at a high angular resolution corresponding to 5 - 8 au, of the protoplanetary disk around HD 163296 to determine the du…
Exploring the disk-jet connection in NGC 315
L. Ricci, B. Boccardi, E. Nokhrina +7
Aims. Hot accretion flows are thought to be able to power the relativistic jets observed in Active Galactic Nuclei. They can present themselves as SANE (Standard And Normal Evoluti…
A giant planet shaping the disk around the very low-mass star CIDA 1
P. Curone, A. F. Izquierdo, L. Testi +13
(Abridged) Exoplanetary research has provided us with exciting discoveries of planets around very low-mass (VLM) stars (e.g., TRAPPIST-1 and Proxima Centauri). However, current the…
Protostellar and Protoplanetary Disk Masses in the Serpens Region
Alexa R. Anderson, Jonathan P. Williams, Nienke van der Marel +4
We present the results from an Atacama Large Millimeter/Submillimeter Array (ALMA) 1.3 mm continuum and CO () line survey spread over 10 square degrees in the Serpens…
Probing Inner-Edge of Dead Zones in Protoplanetary Disks with ALMA and Next Generation Very Large Array
Takahiro Ueda, Luca Ricci, Mario Flock +1
The discovery of substructures in protoplanetary disks with ALMA has provided us key insights on the formation of planets. However, observational constraints on the formation of ro…
Investigating the Future Potential of an Upgraded ALMA to Image Planet Forming Disks at Sub-au Scales
Benjamin Burrill, Luca Ricci, Sarah Harter +2
In recent years, ALMA has been able to observe large-scale substructures within protoplanetary disks. Comparison with the predictions from models of planet-disk interaction has ind…
The Substructures in Disks undergoing Vertical Shear Instability: II. Observational Predictions for the Dust Continuum
Diana Blanco, Luca Ricci, Mario Flock +1
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…
Limits on Millimeter Continuum Emission from Circumplanetary Material in the DSHARP Disks
Sean M. Andrews, William Elder, Shangjia Zhang +10
We present a detailed analysis for a subset of the high resolution (~35 mas, or 5 au) ALMA observations from the Disk Substructures at High Angular Resolution Project (DSHARP) to s…
The Architecture of the V892 Tau System: the Binary and its Circumbinary Disk
Feng Long, Sean M. Andrews, Justin Vega +11
We present high resolution millimeter continuum and CO line observations for the circumbinary disk around V892 Tau to constrain the stellar and disk properties. The total mass of t…
Testing photoevaporation and MHD disk wind models through future high-angular resolution radio observations: the case of TW Hydrae
Luca Ricci, Sarah Harter, Barbara Ercolano +1
We present theoretical predictions for the free-free emission at cm wavelengths obtained from photoevaporation and MHD wind disk models adjusted to the case of the TW Hydrae young…
A bright inner disk and structures in the transition disk around the very low-mass star CIDA 1
P. Pinilla, N. T. Kurtovic, M. Benisty +7
Observations of protoplanetary disks around very low-mass stars and brown dwarfs remain challenging and little is known about their properties. The disk around CIDA1 (0.1-0.2…
Spiral Arms and a Massive Dust Disk with non-Keplerian Kinematics: Possible Evidence for Gravitational Instability in the Disk of Elias 2-27
T. Paneque-Carreño, L. M. Perez, M. Benisty +16
To determine the origin of the spiral structure observed in the dust continuum emission of Elias 2-27 we analyze multi-wavelength continuum ALMA data with a resolution of 0.2…
Jet collimation in NGC 315 and other nearby AGN
B. Boccardi, M. Perucho, C. Casadio +14
Aims. The collimation of relativistic jets in galaxies is a poorly understood process. Detailed radio studies of the jet collimation region have been performed so far in few indivi…
Size and structures of disks around very low mass stars in the Taurus star-forming region
Nicolas T. Kurtovic, Paola Pinilla, Feng Long +7
We aim to estimate if structures, such as cavities, rings, and gaps, are common in disks around VLMS and to test models of structure formation in these disks. We also aim to compar…
A search for companions via direct imaging in the DSHARP planet-forming disks
Sebastián Jorquera, Laura M. Pérez, Gaël Chauvin +10
The "Disk Substructures at High Angular Resolution Project" (DSHARP) has revealed an abundance and ubiquity of rings and gaps over a large sample of young planet-forming disks, whi…
Imaging the Dusty Substructures due to Terrestrial Planets in Planet-forming Disks with ALMA and the Next Generation Very Large Array
Sarah Harter, Luca Ricci, Shangjia Zhang +1
We present simulations of the capabilities of the Atacama Large Millimeter/submillimeter Array (ALMA) and of a Next Generation Very Large Array (ngVLA) to detect and resolve substr…
Large-scale CO spiral arms and complex kinematics associated with the T Tauri star RU Lup
Jane Huang, Sean M. Andrews, Karin I. Öberg +9
While protoplanetary disks often appear to be compact and well-organized in millimeter continuum emission, CO spectral line observations are increasingly revealing complex behavior…