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相关论文: High Angular Resolution Imaging of the V892 Tau Bi…

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We report the discovery of a circumbinary disk around the Herbig Ae/Be system v892 Tau. Our detailed mid-infrared images were made using segment-tilting interferometry on the Keck-1 Telescope and reveal an asymmetric disk inclined at ~60…

天体物理学 · 物理学 2009-11-13 J. D. Monnier , A. Tannirkulam , P. G. Tuthill , M. Ireland , R. Cohen , W. C. Danchi , F. Baron

V892 Tau is a young binary star surrounded by a circumbinary disc which show hints of interaction with the low-mass nearby star V892 Tau NE. The goal of this paper is to constrain the orbit of V892 Tau NE and to determine the resulting…

We present high resolution millimeter continuum and CO line observations for the circumbinary disk around V892 Tau to constrain the stellar and disk properties. The total mass of the two near-equal-mass A stars is estimated to be…

Studying circumbinary disks is critical to understanding the formation mechanisms of binary stars. While optical or mid-infrared images reveal the scattered mission, millimeter observations provide direct measurements of the dust thermal…

太阳与恒星天体物理 · 物理学 2015-05-27 Vincent Piétu , Frédéric Gueth , Pierre Hily-Blant , Karl-Friedrich Schuster , Jérôme Pety

A considerable proportion of young stars belong to multiple star systems. Constraining the planet formation processes in multiple stellar systems is then key to understand the global exoplanet population. This study focuses on investigating…

We present the results of adaptive optics nulling interferometric observations of two Herbig Ae stars, AB Aur and V892 Tau. Our observations at 10.3 microns show resolved circumstellar emission from both sources. Further analysis of the AB…

天体物理学 · 物理学 2009-11-10 W. M. Liu , P. M. Hinz , W. F. Hoffmann , G. Brusa , D. Miller , M. A. Kenworthy

A combination of high-resolution and wide-field imaging reveals two binary stars and one triple star system among the sample of the first 11 stars with planets detected by radial velocity variations. High resolution speckle or adaptive…

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 sub-AU-scale circumstellar environment of the Herbig Ae star HD144432 with near-infrared (NIR) VLTI/AMBER observations to investigate the structure of its inner dust disk. The interferometric observations were carried out with…

I present a study of two Herbig Ae stars that are in completely different evolutionary stages: V892 Tau and PV Cep. Using sub arc-second interferometric observations obtained with the Combined Array for Research in Millimeter-wave Astronomy…

太阳与恒星天体物理 · 物理学 2015-05-19 Murad Hamidouche

We have discovered an optically thick, edge-on circumstellar disk around a Herbig Ae star in the binary system PDS 144, providing the first intermediate-mass analog of HK Tau and similar T Tauris. This system consists of a V ~ 13 mag.…

天体物理学 · 物理学 2009-11-11 Marshall D. Perrin , Gaspard Duchene , Paul Kalas , James R. Graham

V921 Scorpii is a close binary system (separation 0.025") showing the B[e]-phenomenon. The system is surrounded by an enigmatic bipolar nebula, which might have been shaped by episodic mass-loss events, possibly triggered by dynamical…

太阳与恒星天体物理 · 物理学 2015-06-04 Stefan Kraus , Nuria Calvet , Lee Hartmann , Karl-Heinz Hofmann , Alexander Kreplin , John D. Monnier , Gerd Weigelt

We have obtained the first high spatial (0.05'') and spectral (R~35000) resolution 2 micron spectrum of the T Tau S tight binary system using adaptive optics on the Keck II telescope. We have also obtained the first 3.8 and 4.7 micron…

天体物理学 · 物理学 2009-11-11 G. Duchene , A. M. Ghez , C. McCabe , C. Ceccarelli

We report high-resolution 1.6 $\micron$ polarized intensity ($PI$) images of the circumstellar disk around the Herbig Ae star AB Aur at a radial distance of 22 AU ($0."15$) up to 554 AU (3.$"$85), which have been obtained by the…

Circumstellar disks surrounding young stars are known to be the birthplaces of planets, and the innermost astronomical unit is of particular interest. We present new long-baseline spectro-interferometric observations of the HerbigAe star,…

We present new 7 mm and archive 1.3 cm high angular resolution observations of the HL/XZ Tau region made with the VLA. At 7 mm, the emission from HL Tau seems to be arising in a clumpy disk with radius of order 25 AU. The 1.3 cm emission…

太阳与恒星天体物理 · 物理学 2011-02-11 Carlos Carrasco-Gonzalez , Luis F. Rodriguez , Guillem Anglada , Salvador Curiel

We present high-resolution imaging of the young binary T Tauri in 3 mm continuum emission. Compact dust emission with integrated flux density 50 +/- 6 mJy is resolved in an aperture synthesis map at 0.5" resolution and is centered at the…

天体物理学 · 物理学 2009-10-30 R. L. Akeson , D. W. Koerner , E. L. N. Jensen

We present $L^\prime$-band Keck/NIRC2 imaging and $H$-band Subaru/AO188+HiCIAO polarimetric observations of CQ Tau disk with a new spiral arm. Apart from the spiral feature our observations could not detect any companion candidates. We…

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