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Related papers: Resolving Protoplanetary Disks at Millimeter Wavel…

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Context. Observations at sub-millimeter and mm wavelengths will in the near future be able to resolve the radial dependence of the mm spectral slope in circumstellar disks with a resolution of around a few AU at the distance of the closest…

Solar and Stellar Astrophysics · Physics 2010-07-20 T. Birnstiel , L. Ricci , F. Trotta , C. P. Dullemond , A. Natta , L. Testi , C. Dominik , T. Henning , C. W. Ormel , A. Zsom

Since the discovery of the multi-ring structure of the HL Tau disk, ALMA data suggest that the dust continuum emission of many, if not all, protoplanetary disks consists of rings and gaps, no matter their spectral type or age. The origin of…

Earth and Planetary Astrophysics · Physics 2019-02-27 Nienke van der Marel , Ruobing Dong , James di Francesco , Jonathan Williams , John Tobin

The presence of debris disks around young main sequence stars hints at the existence and structure of planetary systems. Millimeter-wavelength observations probe large grains that trace the location of planetesimal belts. The FEPS…

Earth and Planetary Astrophysics · Physics 2016-01-13 Amy Steele , A. Meredith Hughes , John Carpenter , Angelo Ricarte , Sean M. Andrews , David J. Wilner , Eugene Chiang

We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of a protoplanetary disk around the T Tauri star Sz~84 and analyses of the structures of the inner cavity in the central region of the dust disk. Sz~84's spectral…

We report Atacama Large Millimeter/submillimeter Array (ALMA) 1.3 mm continuum upper limits for 5 planetary-mass companions DH Tau B, CT Cha B, GSC 6214-210 B, 1RXS 1609 B, and GQ Lup B. Our survey, together with other ALMA studies, have…

Earth and Planetary Astrophysics · Physics 2017-11-29 Ya-Lin Wu , Laird M. Close , Josh A. Eisner , Patrick D. Sheehan

This paper is one in a series presenting results obtained within the Formation and Evolution of Planetary Systems (FEPS) Legacy Science Program on the Spitzer Space Telescope. Here we present a study of dust processing and growth in seven…

(abridged:) The Taurus Molecular Cloud (TMC) contains numerous prototypical examples of deeply embedded protostars with massive disks and outflows, classical and weak-lined T Tauri stars, jets and Herbig-Haro objects, and a growing number…

Astrophysics · Physics 2007-05-23 M. Guedel , D. L. Padgett , C. Dougados

We present millimeter-wave continuum images of four wide (separations 210-800 AU) young stellar binary systems in the Taurus-Auriga star-forming region. For all four sources, the resolution of our observations is sufficient to determine the…

Astrophysics · Physics 2009-11-07 Eric L. N. Jensen , Rachel L. Akeson

Midplane heating induced by disk accretion plays a key role in determining the disk temperature particularly at the inner disk midplane where planets form. However, the efficiency of accretion heating has been not well constrained by…

Earth and Planetary Astrophysics · Physics 2023-07-26 Takahiro Ueda , Satoshi Okuzumi , Akimasa Kataoka , Mario Flock

Molecular line surveys are among the main tools to probe the structure and physical conditions in protoplanetary disks (PPDs), the birthplace of planets. The large radial and vertical temperature as well as density gradients in these PPDs…

We present ALMA 880 micron continuum observations of 20 K and M-type stars in the Upper Scorpius OB association that are surrounded by protoplanetary disks. These data are used to measure the dust content in disks around low mass stars…

Solar and Stellar Astrophysics · Physics 2015-06-19 John M. Carpenter , Luca Ricci , Andrea Isella

We introduce the Ophiuchus DIsc Survey Employing ALMA (ODISEA), a project aiming to study the entire population of Spitzer-selected protoplanetary discs in the Ophiuchus Molecular Cloud (~300 objects) from both millimeter continuum and CO…

We fit an isothermal oscillatory density model to two ALMA/DSHARP-observed disks, AS 209 and HL Tau, in which planets have presumably already formed and they are orbiting within the observed seven dark gaps in each system. These large disks…

Earth and Planetary Astrophysics · Physics 2019-03-05 Dimitris M. Christodoulou , Demosthenes Kazanas

We present OVRO Millimeter Array lambda = 3.4 - 1.2 mm dust continuum and spectral line observations of the accretion disk encircling the T Tauri star LkCa 15. The 1.2 mm dust continuum emission is resolved, and gives a minimum diameter of…

We present a study of the evolution of the inner few astronomical units of protoplanetary disks around low-mass stars. We consider nearby stellar groups with ages spanning from 1 to 11 Myr, distributed into four age bins. Combining…

CONTEXT: Simple geometrical ring models account well for near-infrared interferometric observations of dusty disks surrounding pre-main sequence stars of intermediate mass. Such models demonstrate that the dust distribution in these disks…

Astrophysics · Physics 2009-11-11 Andrea Isella , Leonardo Testi , Antonella Natta

The mechanism of angular momentum transport in protoplanetary disks is fundamental to understand the distributions of gas and dust in the disks. The unprecedented, high spatial resolution ALMA observations taken toward HL Tau and subsequent…

Earth and Planetary Astrophysics · Physics 2017-08-23 Yasuhiro Hasegawa , Satoshi Okuzumi , Mario Flock , Neal J. Turner

We present arcsecond-resolution Submillimeter Array (SMA) polarimetric observations of the 880 um continuum emission from the protoplanetary disks around two nearby stars, HD 163296 and TW Hydrae. Although previous observations and…

Solar and Stellar Astrophysics · Physics 2014-11-20 A. Meredith Hughes , David J. Wilner , Jungyeon Cho , Daniel P. Marrone , Alexandre Lazarian , Sean M. Andrews , Ramprasad Rao

Observations with the Atacama Large Millimeter/submillimeter Array (ALMA) and the Jansky Very Large Array (JVLA) have revealed many dust rings in protoplanetary disks, often interpreted as dust traps at gas pressure bumps. Previous studies…

Earth and Planetary Astrophysics · Physics 2025-07-15 Linhan Yang , Ya-Ping Li , Ruobing Dong , Kiyoaki Doi , Hauyu Baobab Liu , Pinghui Huang

We present high spatial resolution (< 0.3" = 40$ AU) Submillimeter Array observations of the 865 micron continuum emission from the circumstellar disk around the young star DoAr 25. Despite its bright millimeter emission, this source…

Astrophysics · Physics 2009-11-13 Sean M. Andrews , A. M. Hughes , D. J. Wilner , Chunhua Qi