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Related papers: The Ophiuchus DIsc Survey Employing ALMA (ODISEA).…

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Large-scale vertical magnetic fields are believed to play a key role in the evolution of protoplanetary discs. Associated with non-ideal effects, such as ambipolar diffusion, they are known to launch a wind that could drive accretion in the…

Earth and Planetary Astrophysics · Physics 2020-07-22 A. Riols , G. Lesur , F. Menard

We present an analysis of the morphology and profiles of the dust continuum emission in 153 bright sub-millimetre galaxies (SMGs) detected with ALMA at S/N ratios of $>8$ in high-resolution $0.18''$ ($\sim1$kpc) 870$\mu$m maps. We measure…

Protoplanetary disks are an essential component of the planet-formation process. The amount of dust and gas in the disk constrains the number and size of planets that can form in a system. We analyze 178 T-Tauri stars, 18 in Serpens and 160…

Solar and Stellar Astrophysics · Physics 2025-11-27 Luisa F. Zamudio-Ruvalcaba , Catherine C. Espaillat , Álvaro Ribas , Enrique Macías

We present results from a near-infrared (NIR) adaptive optics (AO) survey of pre-main-sequence stars in the Lupus Molecular Cloud with VLT/NACO to identify (sub)stellar companions down to $\sim$20 au separation and investigate the effects…

Analyzing multiband observations of dust continuum emission is one of the useful tools to constrain dust properties which help us to understand the physical properties of the disks. We perform the synthetic ALMA multiband analysis to find…

Earth and Planetary Astrophysics · Physics 2019-03-06 Seongjoong Kim , Hideko Nomura , Takashi Tsukagoshi , Ryohei Kawabe , Takayuki Muto

We present a 1.3 mm continuum survey of the young (2-3 Myr) stellar cluster IC 348, which lies at a distance of 310 pc, and is dominated by low-mass stars (M$_{\star}$ $\sim$ 0.1-0.6 M$_{\odot}$). We observed 136 Class II sources (disks…

We present an identification of dust-attenuated star-forming galactic-disk substructures in a typical star-forming galaxy (SFG), UDF2, at $z = 2.696$. To date, substructures containing significant buildup of stellar mass and actively…

We present ALMA observations of the Orion Nebula that cover the OMC1 outflow region. Our focus in this paper is on compact emission from protoplanetary disks. We mosaicked a field containing $\sim 600$ near-IR-identified young stars, around…

Solar and Stellar Astrophysics · Physics 2016-07-20 J. A. Eisner , J. M. Bally , A. Ginsburg , P. D. Sheehan

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…

Earth and Planetary Astrophysics · Physics 2013-03-26 Y. Boehler , A. Dutrey , S. Guilloteau , V. Piétu

Over the past decade, advancement of observational capabilities, specifically the Atacama Large Millimeter/submillimeter Array (ALMA) and SPHERE instrument, alongside theoretical innovations like pebble accretion, have reshaped our…

Earth and Planetary Astrophysics · Physics 2024-09-30 Tilman Birnstiel

Protoplanetary disks exhibit a rich variety of substructure in millimeter continuum emission, often attributed to unseen planets. As these planets carve gaps in the gas, dust particles can accumulate in the resulting pressure bumps, forming…

While high resolution ALMA observations reveal a wealth of substructure in protoplanetary discs, they remain incapable of resolving the types of small scale dust structures predicted, for example, by numerical simulations of the streaming…

Earth and Planetary Astrophysics · Physics 2024-06-18 Chiara E. Scardoni , Richard A. Booth , Cathie J. Clarke , Giovanni P. Rosotti , Alvaro Ribas

Four Ophiuchus binaries, two Class I systems and two Class II systems, with separations of ~450-1100 AU, were observed with the Owens Valley Radio Observatory (OVRO) millimeter interferometer. In each system, the 3 mm continuum maps show…

Astrophysics · Physics 2010-11-11 J. Patience , R. L. Akeson , E. L. N. Jensen

Context. The protoplanetary disk around the star HD 100546 displays prominent substructures in the form of two concentric rings. Recent observations with the Atacama Large Millimeter/sub-millimeter Array (ALMA) have revealed these features…

Earth and Planetary Astrophysics · Physics 2021-12-22 Max Ackermann Pyerin , Timmy N. Delage , Nicolás T. Kurtovic , Matías Gárate , Thomas Henning , Paola Pinilla

Circumstellar disks around stars older than 10 Myr are expected to be gas-poor. There are, however, two examples of old (30-40 Myr) debris-like disks containing a detectable amount of cold CO gas. Here we present ALMA and Herschel Space…

Solar and Stellar Astrophysics · Physics 2015-06-17 A. Moór , A. Juhász , Á. Kóspál , P. Ábrahám , D. Apai , T. Csengeri , C. Grady , Th. Henning , A. M. Hughes , Cs. Kiss , I. Pascucci , M. Schmalzl , K. Gabányi

(Abridged) Transition disks are recognized by the absence of emission of small dust grains inside a radius of up to several 10s of AUs. Due to the lack of angular resolution and sensitivity, the gas content of such dust holes has not yet…

Solar and Stellar Astrophysics · Physics 2015-06-18 Simon Bruderer , Nienke van der Marel , Ewine F. van Dishoeck , Tim A. van Kempen

We present new ATCA observations at 3.3 mm of 27 young stellar objects in the rho-Oph young cluster. 25 of these sources have been detected. We analyze the sub-millimeter and millimeter SED for a subsample of 17 isolated class II…

Solar and Stellar Astrophysics · Physics 2015-05-19 L. Ricci , L. Testi , A. Natta , K. J. Brooks

Debris discs were long considered to be largely gas-free environments governed by collisional fragmentation, gravitational stirring, and radiative forces. Recent CO detections show that gas is present, but its abundance and origin remain…

We present high-resolution (0.16$"$) 870um Atacama Large Millimeter/submillimeter Array (ALMA) imaging of 16 luminous (L_IR ~ 4 x 10^12 L_sun) submillimeter galaxies (SMGs) from the ALESS survey of the Extended Chandra Deep Field South.…

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