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相关论文: SMA Observations of the Hot Molecular Core IRAS 18…

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Submillimeter Array 1.3mm line and continuum observations toward the young massive star-forming region IRAS18182-1433 are presented. The data are complemented with short-spacing CO(2-1) observations and SiO(1-0) data from the VLA. Multiple…

天体物理学 · 物理学 2009-11-11 H. Beuther , Q. Zhang , T. K. Sridharan , C. -F. Lee , L. A. Zapata

We present ALMA sub-arcsecond-resolution observations of both continuum and molecular lines at 345 GHz towards the massive star-forming region IRAS 16351-4722 (hereafter I16351). A total of 12 dust cores were detected based on high spatial…

We present new SMA and PdBI observations of the intermediate-mass object IRAS 22198+6336 in the millimeter continuum and in several molecular line transitions. The millimeter continuum emission reveals a strong and compact source with a…

We present molecular line observations of the massive star forming region IRAS 17233-3606 aimed at studying the molecular core associated with the source. The observations were made using the Atacama Pathfinder Experiment telescope in the…

天体物理学 · 物理学 2009-11-13 S. Leurini , C. Hieret , S. Thorwirth , F. Wyrowski , P. Schilke , K. M. Menten , R. Guesten , L. Zapata

Investigating in more detail the previously suggested massive disk scenario for the High-Mass Protostellar Object IRAS18089-1732, we observed the source in the 860mum band with the Submillimeter Array in various spectral lines and the submm…

天体物理学 · 物理学 2009-11-11 H. Beuther , Q. Zhang , T. K. Sridharan , Y. Chen

We present Submillimeter Array observations of the massive star-forming region IRAS 20126+4104 in the millimeter continuum and in several molecular line transitions. With the SMA data, we have detected nine molecular transitions, including…

太阳与恒星天体物理 · 物理学 2015-05-30 Jin-Long Xu , Jun-Jie Wang , Chang-chun Ning

We present Submillimeter Array observations, in the 1.3 mm continuum and the CH_3CN(12-11) line of 17 hot molecular cores associated with young high-mass stars. The angular resolution of the observations ranges from 1".0 to 4".0. The…

星系天体物理 · 物理学 2015-06-18 Vicente Hernández-Hernández , Luis Zapata , Stan Kurtz , Guido Garay

Aims: The main goal of this study is to perform a sub-arcsecond resolution analysis of the high-mass star formation region G19.61-0.23, both in the continuum and molecular line emission. While the centimeter continuum images will be…

太阳与恒星天体物理 · 物理学 2015-05-19 R. S. Furuya , R. Cesaroni , H. Shinnaga

(Abridged) METHODS: We performed SMA observations at 1.3 mm with both the most extended and compact array configurations, providing sub-arcsecond and high sensitivity maps of various molecular lines, including both hot-core and outflow…

星系天体物理 · 物理学 2015-06-18 A. Sanna , R. Cesaroni , L. Moscadelli , Q. Zhang , K. M. Menten , S. Molinari , A. Caratti o Garatti , J. M. De Buizer

SMA observations of the massive star-forming region IRAS 18089-1732 in the 1mm and 850mu band reveal outflow and disk signatures in different molecular lines. The SiO(5--4) data show a collimated outflow in the northern direction. In…

We performed interferometric observations of a high-mass protostellar candidate IRAS 18566+0408 in the \nh3 (J,K)=(1,1), (2,2) and (3,3) inversion transitions, the SiO J=2-1 and HCN J=1-0 lines, and the 43 and 87 GHz continuum emission…

天体物理学 · 物理学 2009-11-13 Qizhou Zhang , T. K. Sridharan , Todd R. Hunter , Yuan Chen , Henrik Beuther , Friedrich Wyrowski

The formation of hypercompact (HC) HII regions is an important stage in massive star formation. Spectral line and continuum observations can explore its dynamic conditions. We present high angular resolution observations carried out with…

星系天体物理 · 物理学 2014-09-29 Chuan-Peng Zhang , Jun-Jie Wang , Jin-Long Xu , Friedrich Wyrowski , Karl M. Menten

We present 1.4-mm BIMA observations with subarcsecond resolution of the bright dust and molecular line emission from hot cores associated with a sample of four ultracompact HII regions: G9.62+0.19, G10.47-0.03, G29.96-0.02, G31.41+0.31.…

天体物理学 · 物理学 2007-05-23 A. G. Gibb , F. Wyrowski , L. G. Mundy

Context. This study is part of a large project to study the physics of accretion and molecular outflows towards a selected sample of high-mass star-forming regions that show evidence of infall and rotation from previous studies. Aims. We…

星系天体物理 · 物理学 2015-05-28 M. T. Beltran , R. Cesaroni , Q. Zhang , R. Galvan-Madrid , H. Beuther , C. Fallscheer , R. Neri , C. Codella

We report the results of our observations of the S255IR area with the SMA at 1.3 mm in the very extended configuration and at 0.8 mm in the compact configuration as well as with the IRAM-30m at 0.8 mm. The best achieved angular resolution…

星系天体物理 · 物理学 2015-09-09 I. Zinchenko , S. -Y. Liu , Y. -N. Su , S. V. Salii , A. M. Sobolev , P. Zemlyanukha , H. Beuther , D. K. Ojha , M. R. Samal , Y. Wang

The studies of the complex molecular emission lines in millimeter and submillimeter wavelengths towards the hot molecular cores demonstrate valuable details about the chemical complexity in the interstellar medium (ISM). We presented the…

星系天体物理 · 物理学 2022-11-02 Arijit Manna , Sabyasachi Pal

We present the results from arcsecond resolution observations of various line transitions at 1.3 mm toward hypercompact HII region G28.20-0.04N. With the SMA data, we have detected and mapped the transitions in the CH$_{3}$CN, CO,…

天体物理学 · 物理学 2009-11-13 Sheng-Li Qin , Maohai Huang , Yuefang Wu , Rui Xue , Sheng Chen

We present Submillimeter Array observations toward the 10^{4.7} Lsun star-forming region G240.31+0.07, in the J=2-1 transition of 12CO and 13CO and at 1.3 mm continuum, as well as the 12CO and 13CO observations from the Caltech…

星系天体物理 · 物理学 2011-02-11 Keping Qiu , Qizhou Zhang , Jingwen Wu , Huei-Ru Chen

We present several molecular line emission arcsec and subarcsec observations obtained with the Submillimeter Array (SMA) in the direction of the massive protostar IRAS 18162-2048, the exciting source of HH 80-81. The data clearly indicates…

Based on color-selected IRAS point sources, we have started to conduct a survey of 47 high-mass star-forming regions in the southern hemisphere in 870um dust continuum and molecular line emission in several frequency ranges between 290 GHz…

太阳与恒星天体物理 · 物理学 2015-05-20 C. Dedes , S. Leurini , F. Wyrowski , P. Schilke , K. M. Menten , S. Thorwirth , J. Ott
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