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相关论文: The Ophiuchus DIsc Survey Employing ALMA (ODISEA)-…

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Constraining dust properties of planet-forming disks via high angular resolution observations is fundamental to understanding how solids are trapped in substructures and how dust growth may be favored or accelerated therein. We use ALMA…

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…

地球与行星天体物理 · 物理学 2025-07-15 Linhan Yang , Ya-Ping Li , Ruobing Dong , Kiyoaki Doi , Hauyu Baobab Liu , Pinghui Huang

The $^{12}$CO rotational lines in protoplanetary discs are good tracers of the total spatial extension of the gas component, and potentially planet-disc interactions. We present ALMA long baseline observations of the $^{12}$CO(2-1) line of…

地球与行星天体物理 · 物理学 2023-05-01 Juanita Antilen , Simon Casassus , Lucas A. Cieza , Camilo González-Ruilova

The connection between the nature of a protoplanetary disk and that of a debris disk is not well understood. Dust evolution, planet formation, and disk dissipation likely play a role in the processes involved. We aim to reconcile both…

地球与行星天体物理 · 物理学 2021-11-17 Arnaud Michel , Nienke van der Marel , Brenda Matthews

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 indicated that most of these disk substructures can be…

地球与行星天体物理 · 物理学 2022-04-06 Benjamin Burrill , Luca Ricci , Sarah Harter , Shangjia Zhang , Zhaohuan Zhu

We present the first high-resolution sub-mm survey of both dust and gas for a large population of protoplanetary disks. Characterizing fundamental properties of protoplanetary disks on a statistical level is critical to understanding how…

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 have been measured in multiple young star-forming regions,…

地球与行星天体物理 · 物理学 2025-11-21 Tau Bito , Akimasa Kataoka , Takahiro Ueda , Luca Ricci , Tilman Birnstiel , John Carpenter

Investigating the dynamical evolution of dust grains in proto-planetary disks is a key issue to understand how planets should form. We identify under which conditions dust settling can be constrained by high angular resolution observations…

地球与行星天体物理 · 物理学 2013-03-26 Y. Boehler , A. Dutrey , S. Guilloteau , V. Piétu

High-angular resolution imaging by ALMA has revealed the near-universality and diversity of substructures in protoplanetary disks. However, disks around M-type pre-main-sequence stars are still poorly sampled, despite the prevalence of…

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…

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…

The radial extent of millimetre dust in protoplanetary discs is often far smaller than that of their gas, mostly due to processes such as dust growth and radial drift. However, it has been suggested that current millimetre continuum…

We present the results from an Atacama Large Millimeter/Submillimeter Array (ALMA) 1.3 mm continuum and $^{12}$CO ($J=2-1$) line survey spread over 10 square degrees in the Serpens star-forming region of 320 young stellar objects, 302 of…

太阳与恒星天体物理 · 物理学 2022-10-26 Alexa R. Anderson , Jonathan P. Williams , Nienke van der Marel , Charles J. Law , Luca Ricci , John J. Tobin , Simin Tong

We present a CO(2-1) and 1240 um continuum survey of 23 debris disks with spectral types B9-G1, observed at an angular resolution of 0.5-1 arcsec with the Atacama Large Millimeter/Submillimeter Array (ALMA). The sample was selected for…

地球与行星天体物理 · 物理学 2016-08-31 Jesse Lieman-Sifry , A. Meredith Hughes , John M. Carpenter , Uma Gorti , Antonio Hales , Kevin M. Flaherty

ALMA (Atacama Large Millimetre/submillimetre Array) observations of the thermal emission from protoplanetary disc dust have revealed a wealth of substructures that could evidence embedded planets, but planet-driven spirals, one of the more…

地球与行星天体物理 · 物理学 2024-04-30 Edward T. Stevenson , Álvaro Ribas , Jessica Speedie , Richard A. Booth , Cathie J. Clarke

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…

地球与行星天体物理 · 物理学 2016-05-04 J. P. Ruge , M. Flock , S. Wolf , N. Dzyurkevich , S. Fromang , Th. Henning , H. Klahr , H. Meheut

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…

太阳与恒星天体物理 · 物理学 2015-06-19 John M. Carpenter , Luca Ricci , Andrea Isella

We present ALMA continuum and spectral line data at 0.89 mm and 3.2 mm for three disks surrounding young brown dwarfs and very low mass stars in the Taurus star forming region. Dust thermal emission is detected and spatially resolved for…

地球与行星天体物理 · 物理学 2015-06-19 L. Ricci , L. Testi , A. Natta , A. Scholz , I. de Gregorio-Monsalvo , A. Isella

We present 0.25 arcsec resolution (35 au) ALMA 1.3 mm dust polarization observations for 37 young stellar objects (YSOs) in the Ophiuchus cloud. These data encompass all the embedded protostars in the cloud and several Flat and Class II…

We analyze a sample of 12 HST-selected edge-on protoplanetary disks for which the vertical extent of the emission layers can be constrained directly. We present ALMA high angular resolution continuum images (0.1arcsec) of these disks at two…