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Related papers: A Large Double-ring Disk around the Taurus M Dwarf…

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We have surveyed the core regions of the z = 1.46 cluster XCS J2215.9-1738 with the Atacama Large Millimeter Array (ALMA) and the MUSE-GALACSI spectrograph on the VLT. We obtained high spatial resolution observations with ALMA of the 1.2 mm…

Astrophysics of Galaxies · Physics 2017-11-28 Stuart M. Stach , A. M. Swinbank , Ian Smail , Matt Hilton , J. M. Simpson , E. A. Cooke

We present Karl G. Jansky Very Large Array (VLA) observations of the 7 mm continuum emission from the disk surrounding the young star LkCa 15. The observations achieve an angular resolution of 70 mas and spatially resolve the circumstellar…

Earth and Planetary Astrophysics · Physics 2015-06-19 Andrea Isella , Claire J. Chandler , John M. Carpenter , Laura M. Pe'rez , Luca Ricci

The ringed disk around HL Tau stands out as the iconic signature of planet formation, but the origin of the substructures is still debated. The HL Tau system also drives a powerful bipolar wind, and we analyze its outermost component traced…

Astrophysics of Galaxies · Physics 2026-01-14 F. Bacciotti , T. Nony , L. Podio , C. Dougados , A. Garufi , S. Cabrit , C. Codella , N. Zimniak , J. Ferreira

The vertical distribution of dust in debris disks is sensitive to the number and size of large planetesimals dynamically stirring the disk, and is therefore well-suited for constraining the prevalence of otherwise unobservable Uranus and…

Recent observations by the Atacama Large Millimeter/submillimeter Array (ALMA) of disks around young stars revealed distinct asymmetries in the dust continuum emission. In this work we want to study axisymmetric and non-axisymmetric…

Earth and Planetary Astrophysics · Physics 2015-01-28 M. Flock , J. P. Ruge , N. Dzyurkevich , Th. Henning , H. Klahr , S. Wolf

We present detailed modeling of the spatial distributions of gas and dust in 57 circumstellar disks in the Upper Scorpius OB Association observed with ALMA at sub-millimeter wavelengths. We fit power-law models to the dust surface density…

Solar and Stellar Astrophysics · Physics 2017-12-27 Scott A. Barenfeld , John M. Carpenter , Anneila I. Sargent , Andrea Isella , Luca Ricci

Spatially resolved structures in protoplanetary disks hint at unseen planets. Previous imaging observations of the transitional disk around MWC 758 revealed an inner cavity, a ring-like outer disk, emission clumps, and spiral arms, all…

We present long-baseline Atacama Large Millimeter/submillimeter Array (ALMA) observations of the 870 micron continuum emission from the nearest gas-rich protoplanetary disk, around TW Hya, that trace millimeter-sized particles down to…

For revealing the first step of the plant formation, it is important to understand how and when dust grains become larger in a disk around a protostar. To investigate the grain growth, we analyze dust continuum emission toward a disk around…

Earth and Planetary Astrophysics · Physics 2022-07-06 Satoshi Ohashi , Hiroshi Kobayashi , Jinshi Sai , Nami Sakai

We present a spatially resolved 894 micron map of the circumstellar disk of the Butterfly star in Taurus (IRAS 04302+2247), obtained with the Submillimeter Array (SMA). The predicted and observed radial brightness profile agree well in the…

Astrophysics · Physics 2009-11-13 S. Wolf , A. Schegerer , H. Beuther , D. L. Padgett , K. R. Stapelfeldt

Dust trapping accelerates the coagulation of dust particles, and thus it represents an initial step toward the formation of planetesimals. We report $H$-band (1.6 um) linear polarimetric observations and 0.87 mm interferometric continuum…

We present the first observations of the HD92945 debris disk obtained with JWST, targeting this nearby K0V star located at 21.54 pc from the Sun. High-contrast coronagraphic imaging was performed using JWST/NIRCam in the F200W and F444W…

Earth and Planetary Astrophysics · Physics 2025-11-20 C. Lazzoni , R. Bendahan-West , S. Marino , K. D. Lawson , A. Carter , V. Squicciarini , G. Strampelli , S. Hinkley , G. Kennedy , A. D. James , J. Milli , S. Ray

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 present ALMA (Cycle 0) band-6 and band-3 observations of the transition disk Sz\,91. The disk inclination and position angle are determined to be $i=49.5\degr\pm3.5\degr$ and $\mathrm{PA}=18.2\degr\pm3.5\degr$ and the dusty and gaseous…

Solar and Stellar Astrophysics · Physics 2015-05-27 H. Canovas , M. R. Schreiber , C. Cáceres , F. Ménard , C. Pinte , G. S. Mathews , L. Cieza , S. Casassus , A. Hales , J. P. Williams , P. Román , A. Hardy

In this study, we reported the results of high-resolution (0.14 arcsec) Atacama Large Millimeter/submillimeter Array (ALMA) observations of the 225 GHz dust continuum and CO molecular emission lines from the transitional disk around SY Cha.…

Context. Rocky planets form by the concentration of solid particles in the inner few au regions of planet-forming disks. Their chemical composition reflects the materials in the disk available in the solid phase at the time the planets were…

ALMA surveys of nearby star-forming regions have shown that the dust mass in the disk is correlated with the stellar mass, but with a large scatter. This scatter could indicate either different evolutionary paths of disks or different…

Resolved ALMA and VLA observations indicate the existence of two dust traps in the protoplanetary disc MWC 758. By means of 2D gas+dust hydrodynamical simulations post-processed with 3D dust radiative transfer calculations, we show that the…

Spatially resolved polarized (sub-)mm emission has been observed for example in the protoplanetary disk around HL Tau. Magnetically aligned grains are commonly interpreted as the source of polarization. However, self-scattering by large…

Earth and Planetary Astrophysics · Physics 2016-08-31 A. Pohl , A. Kataoka , P. Pinilla , C. P. Dullemond , Th. Henning , T. Birnstiel

We conducted a detailed radiative transfer modeling of the dust emission from the circumstellar disk around HL Tau. The goal of our study is to derive the surface density profile of the inner disk and its structure. In addition to the…

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