منابع مشابه
Plateau de Bure Interferometer Observations of the Disk and Outflow of HH30
Context. HH 30 is a well-known Pre-Main-Sequence star in Taurus. HST observations have revealed a flared, edge-on disk driving a highly-collimated optical jet, making this object a case study for the disk-jet-outflow paradigm. Aims. We searched for a molecular outflow, and attempted to better constrain the star and disk parameters. Methods. We obtained high angular resolution (∼ 1′′) observatio...
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We present high angular resolution (∼ 1 and 0.6) mm-interferometric observations of the CO(1− 0) and CO(2− 1) line emission in the central 300 pc of the late-type spiral galaxy NGC6946. The data, obtained with the IRAM Plateau de Bure Interferometer (PdBI), allow the first detection of a molecular gas spiral in the inner ∼ 10 (270 pc) with a large concentration of molecular Based on observation...
متن کاملASTEP (2005-2015): Ten years of soft error and atmospheric radiation characterization on the Plateau de Bure
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ar X iv : a st ro - p h / 03 07 10 5 v 1 5 J ul 2 00 3 Disk Properties and Density Structure of the Star - Forming Dense Core B 335 1
We present subarcsecond resolution dust continuum observations of the protostellar collapse candidate B335 made with the IRAM Plateau de Bure Interferometer at wavelengths of 1.2 and 3.0 mm. These observations probe to < 100 AU size scales and reveal a compact source component that we identify with a circumstellar disk. We analyze these data in concert with previous lower resolution interferome...
متن کاملar X iv : a st ro - p h / 04 02 01 6 v 1 1 Fe b 20 04 Disappearance of N 2 H + from the Gas Phase in the Class 0 Protostar IRAM 04191
We present a high-resolution spectroscopic study of the envelope of the young Class 0 protostar IRAM 04191+1522 in Taurus. N 2 H + (1-0) observations with the Plateau de Bure Interferometer and the IRAM 30m telescope demonstrate that the molecular ion N 2 H + disappears from the gas phase in the inner envelope (r < 1600 AU, n H 2 > 4 − 7 × 10 5 cm −3). This may result from N 2 depletion on pola...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1994
ISSN: 0252-9211
DOI: 10.1017/s0252921100019047