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相关论文: The Circumstellar Disk of the Butterfly Star in Ta…

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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…

天体物理学 · 物理学 2009-11-13 S. Wolf , A. Schegerer , H. Beuther , D. L. Padgett , K. R. Stapelfeldt

We have conducted a survey of 17 wide (> 100 AU) young binary systems in Taurus with the Atacama Large Millimeter Array (ALMA) at two wavelengths. The observations were designed to measure the masses of circumstellar disks in these systems…

太阳与恒星天体物理 · 物理学 2015-06-18 R. L. Akeson , E. L. N. Jensen

We present new multiwavelength submillimeter continuum measurements of the circumstellar dust around 48 young stars in the $\rho$ Ophiuchus dark clouds. Supplemented with previous 1.3 mm observations of an additional 99 objects from the…

天体物理学 · 物理学 2009-06-23 Sean M. Andrews , Jonathan P. Williams

We present HST/NICMOS observations with 0.1" (15 AU) resolution of six young stellar objects in the Taurus star-formation region. The targets of our survey are three Class I IRAS sources (IRAS 04016+2610, IRAS 04248+2612, and IRAS…

We present the first high angular resolution 1.4mm and 2.7mm continuum maps of the T Tauri binary system HK Tau obtained with the Plateau de Bure Interferometer. The contributions of both components are well disentangled at 1.4mm and the…

天体物理学 · 物理学 2009-11-07 G. Duchene , F. Menard , K. Stapelfeldt , G. Duvert

We study the inner region of the circumstellar disk around the TTauri star RY Tau. Our aim is to find a physical description satisfying the available interferometric data, obtained with the mid-infrared interferometric instrument at the…

天体物理学 · 物理学 2009-11-13 A. A. Schegerer , S. Wolf , Th. Ratzka , Ch. Leinert

In this contribution we investigate how a disk determines the physical and geometrical properties of the circumstellar environment of the T Tauri SU Aurigae. Our model of the spectral energy distribution of this star includes the central…

天体物理学 · 物理学 2007-05-23 J. M. Oliveira , B. H. Foing , J. Th. van Loon

We review recent advances in our understanding of the innermost regions of the circumstellar environment around young stars, made possible by the technique of long baseline interferometry at infrared wavelengths. Near-infrared observations…

天体物理学 · 物理学 2007-05-23 Rafael Millan-Gabet , Fabien Malbet , Rachel Akeson , Christoph Leinert , John Monnier , Rens Waters

We present mid-infrared spectra of T Tauri stars in the Taurus star-forming region obtained with the Spitzer Infrared Spectrograph (IRS). For the first time, the 5-36 micron spectra of a large sample of T Tauri stars belonging to the same…

We present a sensitive, multiwavelength submillimeter continuum survey of 153 young stellar objects in the Taurus-Auriga star formation region. The submillimeter detection rate is 61% to a completeness limit of ~10 mJy (3-sigma) at 850…

天体物理学 · 物理学 2008-11-26 Sean M. Andrews , Jonathan P. Williams

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…

天体物理学 · 物理学 2009-11-13 Sean M. Andrews , A. M. Hughes , D. J. Wilner , Chunhua Qi

Context: Circumstellar disks are considered to be the environment for the formation of planets. The growth of dust grains in these disks is the first step in the core accretion-gas capture planet formation scenario. Indicators and evidence…

太阳与恒星天体物理 · 物理学 2015-06-15 Christian Gräfe , Sebastian Wolf , Stephane Guilloteau , Anne Dutrey , Karl Stapelfeldt , Klaus Pontoppidan , Jürgen Sauter

The young star AB Aurigae is surrounded by a complex combination of gas-rich and dust dominated structures. The inner disk which has not been studied previously at sufficient resolution and imaging dynamic range seems to contain very little…

The current picture painted by the observations of circumstellar dust at white dwarfs, and the consequent atmospheric pollution, is of a surviving planetary system. This chapter recounts in detail both the discovery and empirical…

太阳与恒星天体物理 · 物理学 2015-03-19 J. Farihi

Using interferometric data from BIMA observations, combined with detailed modeling in Fourier space of the physical structures predicted by models, we constrain the circumstellar envelope parameters for four Class 0 young stellar objects,…

We present a comprehensive study of the variability properties of young disk-bearing stars in the Taurus star-forming region, paralleling our previous investigation in rho Oph and Upper Sco. A sample of 99 confirmed Taurus association…

太阳与恒星天体物理 · 物理学 2022-04-15 Ann Marie Cody , Lynne A. Hillenbrand , Luisa M. Rebull

Scattered light imaging of protoplanetary disks provides key insights on the geometry and dust properties in the disk surface. Here we present JWST 2--21\,$\mu$m images of a 1000\,au-radius edge-on protoplanetary disk surrounding an…

地球与行星天体物理 · 物理学 2023-09-14 G. Duchene , F. Menard , K. Stapelfeldt , M. Villenave , S. G. Wolff , M. D. Perrin , C. Pinte , R. Tazaki , D. L. Padgett

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…

天体物理学 · 物理学 2009-11-11 Andrea Isella , Leonardo Testi , Antonella Natta

We present observations of a circumstellar disk that is inclined close to edge-on around a young brown dwarf in the Taurus star-forming region. Using data obtained with SpeX at the NASA Infrared Telescope Facility, we find that the slope of…

We have completed a systematic survey for disks around young brown dwarfs and very low mass stars. By choosing a well-defined sample and by obtaining sensitive thermal IR observations, we can make an unbiased measurement of the disk…

天体物理学 · 物理学 2007-05-23 Michael C. Liu , Alan T. Tokunaga , Joan Najita
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