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相关论文: Compact Centimeter and Millimeter Sources in NGC 6…

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Using the Submillimeter Array (SMA), we have imaged the 1.3 millimeter continuum emission at the center of the massive star-forming regions NGC 6334 I and I(N). In both regions, the SMA observations resolve the emission into multiple…

天体物理学 · 物理学 2008-11-26 T. R. Hunter , C. L. Brogan , S. T. Megeath , K. M. Menten , H. Beuther , S. Thorwirth

The presence and properties of compact radio sources embedded in massive star-forming regions can reveal important physical properties about these regions and the processes occurring within them. The NGC 6334 complex, a massive star-forming…

星系天体物理 · 物理学 2018-02-21 S. -N. X. Medina , S. A. Dzib , M. Tapia , L. F. Rodríguez , L. Loinard

Using the SMA and VLA, we have imaged the massive protocluster NGC6334I(N) at high angular resolution (0.5"~650AU) from 6cm to 0.87mm, detecting 18 new compact continuum sources. Three of the new sources are coincident with…

太阳与恒星天体物理 · 物理学 2015-03-30 T. R. Hunter , C. L. Brogan , C. J. Cyganowski , K. H. Young

We present a high-resolution, multi-wavelength study of the massive protostellar cluster NGC 6334I(N) that combines new spectral line data from the Submillimeter Array (SMA) and VLA with a reanalysis of archival VLA continuum data, 2MASS…

星系天体物理 · 物理学 2014-11-20 C. L. Brogan , T. R. Hunter , C. J. Cyganowski , R. Indebetouw , H. Beuther , K. M. Menten , S. Thorwirth

We have studied the high-mass star-forming complex NGC 6334 with ALMA in the continuum emission at a frequency of 87.6 GHz, achieving a spatial resolution of 1300 au. Detecting 142 compact sources distributed over the whole observed area,…

A handful of HII regions are known to exhibit a compact radio source near their centers. The nature of these compact radio sources is not well established. We present the analysis of new as well as archival Very Large Array observations of…

太阳与恒星天体物理 · 物理学 2013-12-11 Luis F. Rodríguez , Josep M. Masqué , Sergio A. Dzib , Laurent Loinard , Stanley E. Kurtz

The full stellar population of NGC 6334, one of the most spectacular regions of massive star formation in the nearby Galaxy, have not been well-sampled in past studies. We analyze here a mosaic of two Chandra X-ray Observatory images of the…

星系天体物理 · 物理学 2015-05-13 Eric D. Feigelson , Amanda L. Martin , Collin J. McNeill , Patrick S. Broos , Gordon P. Garmire

We have used the Australia Telescope Compact Array (ATCA) to search for continuum emission toward three strong 6.7-GHz methanol maser sources. For two of the sources, G339.88-1.26 and NGC 6334F (G351.42+0.64), we detect continuum emission…

天体物理学 · 物理学 2015-06-24 S. P. Ellingsen , R. P. Norris , P. M. McCulloch

We report the results of a millimeter interferometric survey of compact 3 mm continuum sources in the inner 5.5'x5.5' region of the Serpens core. We detect 32 discrete sources above 4.0 mJy/beam, 21 of which are new detections at millimeter…

天体物理学 · 物理学 2009-10-30 Leonardo Testi , Anneila Sargent

We combine multifrequency observations from the millimeter to near infrared wavelengths that demonstrate the spatial distributions of H2, CO, and NH3 emission, which are all manifestations of various shocks driven by outflows of deeply…

This paper presents a study of the rate and efficiency of star formation in the NGC 6334 star forming region. We obtained observations at J, H, and Ks taken with the NOAO Extremely Wide-Field Infrared Imager (NEWFIRM) and combined them with…

太阳与恒星天体物理 · 物理学 2015-06-17 Sarah Willis , Massimo Marengo , Lori Allen , Giovanni G. Fazio , Howard Smith , Sean Carey

We present Submillimeter Array (SMA) observations at 345 GHz towards the intermediate/high-mass cluster-forming region NGC 6334 V. From the dust emission we spatially resolve three dense condensations, the brightest one presenting the…

We present VLA and ALMA imaging of the deeply-embedded protostellar cluster NGC6334I from 5 cm to 1.3 mm at angular resolutions as fine as 0.17 (220 AU). The dominant hot core MM1 is resolved into seven components at 1.3 mm, clustered…

星系天体物理 · 物理学 2016-12-14 C. L. Brogan , T. R. Hunter , C. J. Cyganowski , C. J. Chandler , R. Friesen , R. Indebetouw

We present 7 mm, 1.3 cm and 3.6 cm continuum observations made with the Very Large Array toward a sample of ten luminous IRAS sources that are believed to be regions of massive star formation. We detect compact 7 mm emission in four of…

天体物理学 · 物理学 2016-08-30 Luis Zapata , Luis Rodriguez , Paul Ho , Henrik Beuther , Qizhou Zhang

We present a detailed study of the massive star-forming region G35.2-0.74N with ALMA 1.3 mm multi-configuration observations. At 0.2" (440 au) resolution, the continuum emission reveals several dense cores along a filamentary structure,…

Aims: Investigation of the dense gas, the outflows and the continuum emission from the massive twin cores NGC6334I and I(N) at high spatial resolution. Methods: We imaged the region with the Australia Telescope Compact Array (ATCA) at 3.4mm…

天体物理学 · 物理学 2009-11-13 H. Beuther , A. J. Walsh , S. Thorwirth , Q. Zhang , T. R. Hunter , S. T. Megeath , K. M. Menten

The region centered in the NGC 6334 I(N) radio continuum source was surveyed in an extension of 6 arcmin in right ascension and 12 arcmin in declination, in the NH3(J,K) = (1,1) transition, using the Itapetinga radio telescope. The spectra…

天体物理学 · 物理学 2007-05-23 Anderson Caproni , Zulema Abraham , Jose W. S. Vilas-Boas

We find strong evidence for outflows originating in the dense molecular core NGC 6334 I(North): a 1000 Msol molecular core distinguished by its lack of HII regions and mid-IR emission. New observations were obtained of the SiO 2-1 and 5-4…

天体物理学 · 物理学 2009-10-31 S. T. Megeath , A. R. Tieftrunk

We report observations of dust continuum emission at 1.2 mm toward the star forming region NGC 6334 made with the SEST SIMBA bolometer array. The observations cover an area of $\sim 2$ square degrees with approximately uniform noise. We…

天体物理学 · 物理学 2009-11-13 Diego J. Munoz , Diego Mardones , Guido Garay , David Rebolledo , Kate Brooks , Sylvain Bontemps

High-mass star-forming regions are known to have a rich molecular spectrum from many species. Some of the very highly excited lines are emitted from very hot and dense gas close to the central object(s). The physics and chemistry of the…

天体物理学 · 物理学 2009-11-11 P. Schilke , C. Comito , S. Thorwirth , F. Wyrowski , K. M. Menten , R. Güsten , P. Bergman , L. A. Nyman
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