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The protoplanetary system HD 169142 is one of the few cases where a potential candidate protoplanet has been recently detected via direct imaging. To study the interaction between the protoplanet and the disk itself observations of the gas…

Solar and Stellar Astrophysics · Physics 2017-04-05 D. Fedele , M. Carney , M. R. Hogerheijde , C. Walsh , A. Miotello , P. Klaassen , S. Bruderer , Th. Henning , E. F. vanDishoeck

We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of molecular line emission from d216-0939, one of the largest and most massive protoplanetary disks in the Orion Nebula Cluster (ONC). We model the spectrally…

[Abridged] We aim to study the radial and vertical extents of 12CO gas, millimeter dust thermal emission and optical/NIR scattered light by dust in disks. We analyze a sample of 14 highly inclined protoplanetary disks. We present ALMA high…

The ALMA survey of Gas Evolution in PROtoplanetary disks (AGE-PRO) Large Program aims to trace the evolution of gas disk mass and size throughout the lifetime of protoplanetary disks. This paper presents Band-6 ALMA observations of 10…

In this article we review the methods used to determine the gas and dust masses of protoplanetary disks, with an emphasis on the lesser characterized total gas mass. Our review encompasses all the indirect tracers and the methodology that…

Solar and Stellar Astrophysics · Physics 2026-05-08 Edwin A. Bergin , Jonathan P. Williams

We present new Atacama Large Millimeter/submillimeter Array (ALMA) observations for three protoplanetary disks in Taurus at 2.9\,mm and comparisons with previous 1.3\,mm data both at an angular resolution of $\sim0.''1$ (15\,au for the…

We present ALMA multiwavelength observations of the protoplanetary disk around the nearby (d$\sim$100 pc) young solar analog MP Mus (PDS 66). These observations at 0.89 mm, 1.3 mm, and 2.2 mm have angular resolutions of $\sim$ 1", 0.05",…

The formation of planets strongly depends on the total amount as well as on the spatial distribution of solids in protoplanetary disks. Thanks to the improvements in resolution and sensitivity provided by ALMA, measurements of the surface…

Accurate disk mass measurements are necessary to constrain disk evolution and the timescale of planet formation, but such measurements are difficult to make and are very dependent on assumptions. Here we look at the assumption that the disk…

Solar and Stellar Astrophysics · Physics 2023-01-04 Z. Xin , C. C. Espaillat , A. M. Rilinger , A. Ribas , E. Macias

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…

Dust grains with sizes around (sub)mm are expected to couple only weakly to the gas motion in regions beyond 10 au of circumstellar disks. In this work, we investigate the influence of the spatial distribution of such grains on the (sub)mm…

Earth and Planetary Astrophysics · Physics 2016-05-04 J. P. Ruge , M. Flock , S. Wolf , N. Dzyurkevich , S. Fromang , Th. Henning , H. Klahr , H. Meheut

The thermal structure of protoplanetary disks is a fundamental characteristic of the system that has wide reaching effects on disk evolution and planet formation. In this study, we constrain the 2D thermal structure of the protoplanetary…

Detecting planet signatures in protoplanetary disks is fundamental to understanding how and where planets form. In this work, we report dust and gas observational hints of planet formation in the disk around 2MASS-J16120668-301027, as part…

Planets form in protoplanetary disks and inherit their chemical composition. It is therefore crucial to understand the disks molecular content. We aim to characterize the distribution and abundance of molecules in the disk of DG Tau. In the…

Astrophysics of Galaxies · Physics 2021-01-04 L. Podio , A. Garufi , C. Codella , D. Fedele , K. Rygl , C. Favre , F. Bacciotti , E. Bianchi , C. Ceccarelli , S. Mercimek , R. Teague , L. Testi

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 simple model linking the emitting height of CO to the disk…

We present results from an Atacama Large Millimeter/submillimeter Array (ALMA) Cycle 2 program to map CO(2-1) emission in nearby early-type galaxies (ETGs) that host circumnuclear gas disks. We obtained $\sim0.3''-$resolution Band 6…

Astrophysics of Galaxies · Physics 2017-08-30 Benjamin D. Boizelle , Aaron J. Barth , Jeremy Darling , Andrew J. Baker , David A. Buote , Luis C. Ho , Jonelle Walsh

Measuring the gas mass of protoplanetary disks, the reservoir available for giant planet formation, has proven to be difficult. We currently lack a far-infrared observatory capable of observing HD, and the most common gas mass tracer, CO,…

Earth and Planetary Astrophysics · Physics 2022-02-23 L. Trapman , K. Zhang , M. R. L. van 't Hoff , M. R. Hogerheijde , E. A. Bergin

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…

Transitional disks with large dust cavities are important laboratories to study planet formation and disk evolution. Cold gas may still be present inside these cavities, but the quantification of this gas is challenging. The gas content is…

Earth and Planetary Astrophysics · Physics 2015-07-08 Nienke van der Marel , Ewine van Dishoeck , Simon Bruderer , Laura M. Perez , Andrea Isella

Giant planets grow and acquire their gas envelope during the disk phase. At the time of the discovery of giant planets in their host disk, it is important to understand the interplay between the host disk and the envelope and…

Earth and Planetary Astrophysics · Physics 2024-08-23 E. Lega , M. Benisty , A. Cridland , A. Morbidelli , M. Schulik , M. Lambrechts