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相关论文: The Greater Taurus-Auriga Ecosystem I: There Is A …

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In this work, we present a systematic search for stellar groups in the Taurus field by applying DBSCAN algorithm to the data from Gaia DR2. We find 22 groups, consisting of 8 young groups (Groups 1-8) at ages of 2-4Myr and distances of…

太阳与恒星天体物理 · 物理学 2021-05-26 Jiaming Liu , Min Fang , Hao Tian , Chao Liu , Chengqun Yang , Xiangxiang Xue

The origin of thick disks and their evolutionary connection with thin disks are still a matter of debate. We provide new insights into this topic by connecting the stellar populations of thick disks at redshift $z=0$ with their past…

Aims: In a recent study, we derived individual distances for 109 pre-main sequence stars that define the Lupus kinematic association of young stars. Here, we use these new distances to derive the masses and ages of Lupus T Tauri stars with…

太阳与恒星天体物理 · 物理学 2015-07-22 P. A. B. Galli , C. Bertout , R. Teixeira , C. Ducourant

I have performed a search for young low-mass stars and brown dwarfs (BDs) in 2 regions encompassing a total area of 4 deg^2 in the Taurus star-forming region, discovering 15 new members of Taurus. In addition, I present 7 new members…

天体物理学 · 物理学 2008-11-26 K. L. Luhman

We present a high-resolution ($\sim0.''12$, $\sim16$ au, mean sensitivity of $50~\mu$Jy~beam$^{-1}$ at 225 GHz) snapshot survey of 32 protoplanetary disks around young stars with spectral type earlier than M3 in the Taurus star-forming…

To understand the formation of stellar groups, one must first document carefully the birth pattern within real clusters and associations. In this study of Taurus-Auriga, we combine pre-main-sequence ages from our own evolutionary tracks…

天体物理学 · 物理学 2009-11-07 Francesco Palla , Steven W. Stahler

We have compiled photometry at 3.4, 4.6, 12 and 22 $\mu$m from the all-sky survey performed by the Wide-field Infrared Survey Explorer (WISE) for all known members of the Taurus complex of dark clouds. Using these data and photometry from…

太阳与恒星天体物理 · 物理学 2015-06-18 T. L. Esplin , K. L. Luhman , E. E. Mamajek

We present a new SMA survey of 47 Class II sources in the Taurus-Auriga region. Our observations made 12 independent samples of flux densities over the 200-400 GHz frequency range. We tightly constrained the spectral indices of most sources…

地球与行星天体物理 · 物理学 2024-05-31 Chia-Ying Chung , Sean M. Andrews , Mark A. Gurwell , Melvyn Wright , Feng Long , Wenrui Xu , Hauyu Baobab Liu

(abridged:) The Taurus Molecular Cloud (TMC) contains numerous prototypical examples of deeply embedded protostars with massive disks and outflows, classical and weak-lined T Tauri stars, jets and Herbig-Haro objects, and a growing number…

天体物理学 · 物理学 2007-05-23 M. Guedel , D. L. Padgett , C. Dougados

We present the initial results from a survey for planetary-mass brown dwarfs in the Taurus star-forming region. We have identified brown dwarf candidates in Taurus using proper motions and photometry from several ground- and space-based…

太阳与恒星天体物理 · 物理学 2017-09-13 Taran Esplin , Kevin Luhman

Corona-Australis is one of the nearest regions to the Sun with recent and ongoing star formation, but the current picture of its stellar (and substellar) content is not complete yet. We take advantage of the second data release of the Gaia…

太阳与恒星天体物理 · 物理学 2020-02-19 P. A. B. Galli , H. Bouy , J. Olivares , N. Miret-Roig , L. M. Sarro , D. Barrado , A. Berihuete , W. Brandner

We review the history and structure of star formation in the Taurus-Auriga dark clouds. Our discussion includes a summary of the macroscopic cloud properties, the population of single and binary pre-main sequence stars, the properties of…

天体物理学 · 物理学 2008-10-09 Scott J. Kenyon , Mercedes Gomez , Barbara A. Whitney

With the third data release of the Gaia mission $Gaia$ DR3 with its precise photometry and astrometry, it is now possible to study the behaviour of stars at a scale never seen before. In this paper, we developed new criteria to identify…

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 a high dispersion optical spectrum of St 34 and identify the system as a spectroscopic binary with components of similar luminosity and temperature (both M3+/-0.5). Based on kinematics, signatures of accretion, and location on an…

天体物理学 · 物理学 2016-08-30 Russel White , Lynne Hillenbrand

We present photometry at 3-24um for all known members of the Upper Scorpius association (~11 Myr) based on all images of these objects obtained with the Spitzer Space Telescope and the Wide-field Infrared Survey Explorer. We have used these…

星系天体物理 · 物理学 2015-06-11 K. L. Luhman , E. E. Mamajek

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…

天体物理学 · 物理学 2009-11-06 R. J. White , A. M. Ghez

We investigate the star formation history of the IC1396 region by studying its kinematics and completing the population census. We use multiwavelength data, combining optical spectroscopy (to identify and classify new members),…

Observations of substructure in protoplanetary disks have largely been limited to the brightest and largest disks, excluding the abundant population of compact disks which are likely sites of planet formation. Here, we reanalyze ~0.1'',…

地球与行星天体物理 · 物理学 2023-08-02 Shangjia Zhang , Matt Kalscheur , Feng Long , Ke Zhang , Deryl E. Long , Edwin A. Bergin , Zhaohuan Zhu , Leon Trapman

We report the results of a spectroscopic survey of 20 close T Tauri binaries in the Taurus-Auriga dark cloud where the separations between primaries and their secondaries are less than the typical size of a circumstellar disk around a young…

天体物理学 · 物理学 2009-11-07 Patrick Hartigan , Scott Kenyon