Molecular envelope around the HII region RCW 120
نویسندگان
چکیده
منابع مشابه
The Open University ’ s repository of research publications and other research outputs Star formation triggered by the Galactic HII region RCW 120 : first results from the Herschel Space
Context. By means of different physical mechanisms, the expansion of H ii regions can promote the formation of new stars of all masses. RCW 120 is a nearby Galactic H ii region where triggered star formation occurs. This region is well-studied – there being a wealth of existing data – and is nearby. However, it is surrounded by dense regions for which far infrared data is essential to obtain an...
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Context. RCW 120 is a well-studied, nearby Galactic H ii region with ongoing star formation in its surroundings. Previous work has shown that it displays a bubble morphology at mid-infrared wavelengths, and has a massive layer of collected neutral material seen at sub-mm wavelengths. Given the well-defined photo-dissociation region (PDR) boundary and collected layer, it is an excellent laborato...
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We present millimeter interferometric observations of the molecular envelope around the red supergiant VY CMa with the SubMillimeter Array (SMA) . The high angular resolution (< 2) allows us to derive the structure of the envelope as observed in the 1.3 mm continuum, CO(2-1), CO(2-1) and SO(65-54) lines emission. The circumstellar envelope is resolved into three components: a dense, compact and...
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The Carina Nebula is an extremely bright southern H II region embedded in a giant molecular cloud and contains some of the most massive stars known in our Galaxy. We are undertaking a multi-wavelength study of the Carina Nebula in order to examine the detailed kinematics and distribution of the molecular and ionised gas, and to look for further evidence of ongoing star formation. Here we presen...
متن کاملMolecular cloud/HII region interfaces in the star forming region NGC6357
Wehave performed 12CO(1–0), 12CO(2–1), 13CO(1– 0), 13CO(2–1), C18O(1–0), C18O(2–1), HCO+(1–0) and H13CO+(1–0) observations towards two selected areas in the star forming complex NGC 6357 with angular resolutions from 21′′ to 55′′. In particular, we have mapped the molecular gas around the twoHii regions G353.1+0.6 andG353.2+0.9 in the 12CO(1– 0) and 13CO(1–0) transitions with a resolution of ∼ ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2019
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stz2048