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Related papers: Resolved young binary systems and their disks

200 papers

We present the most sensitive 3 mm-survey to date of protoplanetary disks carried in the Taurus-Auriga star forming region (average rms of about 0.3 mJy), using the IRAM PdBI. With our high detection rate of 17/19, we provide the first…

Earth and Planetary Astrophysics · Physics 2015-05-14 L. Ricci , L. Testi , A. Natta , R. Neri , S. Cabrit , G. J. Herczeg

We surveyed thirteen very low mass (VLM; M < 0.2 M_sun) objects in the Taurus star-forming region using near-infrared diffraction-limited imaging techniques on the W.M. Keck I 10 m telescope. Of these thirteen, five were found to be binary,…

Astrophysics · Physics 2011-02-11 Q. M. Konopacky , A. M. Ghez , E. L. Rice , G. Duchene

Variability of millimetre wavelength continuum emission from Class II protoplanetary disks is extremely rare, and when detected it is usually interpreted as originating from non-thermal emission mechanisms that relate to the host star…

This article presents the latest results of our ALMA program to study circumstellar disk characteristics as a function of orbital and stellar properties in a sample of young binary star systems known to host at least one disk. Optical and…

We present new ALMA observations of CO $J$=2$-$1 line emission from the DQ Tau circumbinary disk. These data are used to tomographically reconstruct the Keplerian disk velocity field in a forward-modeling inference framework, and thereby…

Solar and Stellar Astrophysics · Physics 2016-03-09 Ian Czekala , S. M. Andrews , G. Torres , E. L. N. Jensen , K. G. Stassun , D. J. Wilner , D. W. Latham

(Abridged) We attempt to characterize the radial distribution of dust in disks around a sample of young stars from an observational point of view, and, when possible, in a model-independent way, by using parametric laws. We used the IRAM…

Astrophysics of Galaxies · Physics 2015-05-27 S. Guilloteau , A. Dutrey , V. Piétu , Y. Boehler

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…

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…

We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of 1.1 mm dust continuum and CO 2-1 emission toward six dense cores within the Ophiuchus molecular cloud. We detect compact, sub-arcsecond continuum structures…

Solar and Stellar Astrophysics · Physics 2018-12-26 Rachel K. Friesen , Andy Pon , Tyler L. Bourke , P. Caselli , J. Di Francesco , Jes K. Jørgensen , Jaime E. Pineda

We present new sub-arcsecond (0.7'') Combined Array for Research in Millimeter-wave Astronomy (CARMA) observations of the 1.3 mm continuum emission from circumstellar disks around 11 low and intermediate mass pre-main sequence stars. High…

Solar and Stellar Astrophysics · Physics 2009-07-24 Andrea Isella , John M. Carpenter , Anneila I. Sargent

We targeted the massive star forming region W33A using the Atacama Large Sub/Millimeter Array (ALMA) in band 6 (230 GHz) and 7 (345 GHz) to search for a sub-1000au disc around the central O-type massive young stellar object (MYSO) W33A…

Solar and Stellar Astrophysics · Physics 2017-04-19 L. T. Maud , M. G. Hoare , R. Galván-Madrid , Q. Zhang , E. Keto , K. G. Johnston , J. E. Pineda

Class III stars are those in star forming regions without large non-photospheric infrared emission, suggesting recent dispersal of their protoplanetary disks. We observed 30 class III stars in the 1-3 Myr Lupus region with ALMA at…

Earth and Planetary Astrophysics · Physics 2020-11-04 J. B. Lovell , M. C. Wyatt , M. Ansdell , M. Kama , G. M. Kennedy , C. F. Manara , S. Marino , L. Matrà , G. Rosotti , M. Tazzari , L. Testi , J. P. Williams

Stellar masses are fundamental but often difficult to measure. Thanks to the Atacama Large Millimeter Array (ALMA) and $Gaia$, dynamical masses of pre-main sequence stars can be precisely measured using the Keplerian rotation of…

Solar and Stellar Astrophysics · Physics 2020-12-24 Pranav H. Premnath , Ya-Lin Wu , Brendan P. Bowler , Patrick D. Sheehan

Close binary systems present challenges to planet formation. As binary separations decrease, so too do the occurrence rates of protoplanetary disks in young systems and planets in mature systems. For systems that do retain disks, their disk…

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

The Keplerian rotation in protoplanetary disks can be used to robustly measure stellar masses at very high precision if the source distance is known. We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of spatially…

Solar and Stellar Astrophysics · Physics 2019-04-10 Patrick D. Sheehan , Ya-Lin Wu , Josh A. Eisner , John Tobin

We present a high spatial resolution UV to NIR survey of 44 young binary stars in Taurus with separations of 10-1000 AU. The primary results include: (1) The relative ages of binary star components are more similar than the relative ages of…

Astrophysics · Physics 2009-11-06 R. J. White , A. M. Ghez

We present Adaptive Optics (AO) near infrared (NIR) observations using VLT/NACO and Keck/NIRC2 of ODISEA targets. ODISEA is an ALMA survey of the entire population of circumstellar discs in the Ophiuchus molecular cloud. From the whole…

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 study of the properties of disks around young brown dwarfs can provide important clues on the formation of these very low-mass objects and on the possibility of forming planetary systems around them. The presence of warm dusty disks…

Solar and Stellar Astrophysics · Physics 2016-10-05 L. Testi , A. Natta , A. Scholz , M. Tazzari , L. Ricci , I. de Gregorio Monsalvo
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