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相关论文: FAUST XXV. A potential new molecular outflow in [B…

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(Abridged) High-mass star formation is far less understood than low-mass star formation. It entails molecular outflows, which disturb the protostellar clump. Studying these outflows and the shocked gas they cause is key for a better…

星系天体物理 · 物理学 2023-09-27 N. Guerra-Varas , M. Merello , L. Bronfman , N. Duronea , D. Elia , R. Finger , E. Mendoza

Theoretical models suggest that massive stars form via disk-mediated accretion, with bipolar outflows playing a fundamental role. A recent study toward massive molecular outflows has revealed a decrease of the SiO line intensity as the…

We have searched for massive molecular outflows in a sample of high-mass star forming regions, and we have characterised both the outflow properties and those of their associated molecular clumps. With a sample composed largely of more…

星系天体物理 · 物理学 2015-05-13 A. Lopez-Sepulcre , C. Codella , R. Cesaroni , N. Marcelino , C. M. Walmsley

Aims. Studying protostellar objects in their earliest stages, particularly during the Class 0 phase, provides key insight into the beginnings of planet formation and dust evolution. Disentangling the various components, however, is…

We have obtained ALMA Band 7 observations of the FU Ori outburst system at 0.6"x0.5" resolution to measure the link between the inner disk instability and the outer disk through sub-mm continuum and molecular line observations. Our…

太阳与恒星天体物理 · 物理学 2015-10-28 A. S. Hales , S. A. Corder , W. R. D. Dent , S. M. Andrews , J. A. Eisner , L. A. Cieza

Outflowing motions, whether a wind launched from the disk, a jet launched from the protostar, or the entrained molecular outflow, appear to be an ubiquitous feature of star formation. These outwards motions have a number of root causes, and…

星系天体物理 · 物理学 2016-05-25 Pamela D. Klaassen , Joseph C. Mottram , Luke T. Maud , Attila Juhasz

We present observations towards a high-mass ($\rm >40\,M_{\odot}$), low luminosity ($\rm <10\,L_{\odot}$) $\rm 70\,\mu$m dark molecular core G 28.34 S-A at 3.4 mm, using the IRAM 30 m telescope and the NOEMA interferometer. We report the…

星系天体物理 · 物理学 2016-09-21 S. Feng , H. Beuther , Q. Zhang , H. B. Liu , Z. Zhang , K. Wang , K. Qiu

Some theoretical models propose that O-B stars form via accretion, in a similar fashion to low-mass stars. Jet-driven molecular outflows play an important role in this scenario, and their study can help to understand the process of…

During the formation of a star, material is ejected along powerful jets that impact the ambient material. This outflow phenomenon plays an important role in the regulation of star formation. Understanding the associated shocks and their…

星系天体物理 · 物理学 2011-08-19 A. Gusdorf , T. Giannini , D. R. Flower , B. Parise , R. Güsten , L. E. Kristensen

Context. Deuterium in H-bearing species is enhanced during the early stages of star formation, however, only a small number of high spatial resolution deuteration studies exist towards protostellar objects, leaving the small-scale…

We present observations and analysis of the massive molecular outflow G331.512-0.103, obtained with ALMA band 7, continuing the work from Merello et al. (2013). Several lines were identified in the observed bandwidth, consisting of two…

We present the results of the ALMA Large Program Early Planet Formation in Embedded disks observations of the Class 0 protostar GSS30 IRS3. Our observations included 1.3 mm continuum with a resolution of 0.''05 (7.8 au) and several…

We investigate at a high angular resolution the spatial and kinematic structure of the S255IR high mass star-forming region, which demonstrated recently the first disk-mediated accretion burst in the massive young stellar object. The…

星系天体物理 · 物理学 2020-02-05 Igor I. Zinchenko , Sheng-Yuan Liu , Yu-Nung Su , Kuo-Song Wang , Yuan Wang

We use the Submillimeter Array to observe, at 1.4 mm, the blue-lobe of the L1157 outflow at high spatial resolution (~ 3"). We detected SiO, H_2CO, and CH_3OH lines from several molecular clumps that constitute the outflow. All three…

星系天体物理 · 物理学 2015-06-16 A. I. Gómez-Ruiz , N. Hirano , S. Leurini , S. -Y. Liu

Aims: Previous observations of the young massive star formation region IRAS 19410+2336 have revealed strong outflow activity with several interacting outflows. We aim to get a better understanding of the outflow activity in this region by…

星系天体物理 · 物理学 2016-04-13 Felix Widmann , Henrik Beuther , Peter Schilke , Thomas Stanke

We present observations toward HOPS 383, the first known outbursting Class 0 protostar located within the Orion molecular cloud using ALMA, VLA, and SMA. The SMA observations reveal envelope scale continuum and molecular line emission…

We have observed the late Class I protostellar source Elias~29 at a spatial-resolution of 70~au with the Atacama~Large~Millimeter/submillimeter~Array (ALMA) as part of the FAUST Large Program. We focus on the line emission of SO, while that…

太阳与恒星天体物理 · 物理学 2025-01-22 Yoko Oya , Eri Saiga , Anna Miotello , FAUST members

We have carried out a near-infrared imaging survey of luminous young stellar outflow candidates using the United Kingdom Infrared Telescope. Observations were obtained in the broad band K (2.2 mu) and through narrow band filters at the…

太阳与恒星天体物理 · 物理学 2015-05-18 Watson P. Varricatt , Christopher J. Davis , Suzanne Ramsay , Stephen P. Todd

We present the results of an outflow and infall survey towards a distance limited sample of 31 massive star forming regions drawn from the RMS survey. The presence of young, active outflows is identified from SiO (8-7) emission and the…

星系天体物理 · 物理学 2018-04-04 Nichol Cunningham , Stuart Lumsden , Toby Moore , Luke Maud , Ignacio. Mendigutia
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