Mid-infrared imaging and spectroscopy of the southern Hii region RCW 38
نویسندگان
چکیده
منابع مشابه
The Embedded Massive Star Forming Region RCW 38
RCW 38 is a uniquely young (<1 Myr), embedded (AV ∼ 10) stellar cluster surrounding a pair of early O stars (∼O5.5) and is one of the few regions within 2 kpc other than Orion to contain over 1000 members. X-ray and deep near-infrared observations reveal a dense cluster with over 200 X-ray sources and 400 infrared sources embedded in a diffuse hot plasma within a 1 pc diameter. The central O st...
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The dust emission spectrum between 5 and 16 m has been measured at the northern edge of the dense cloud in Ophiuchus at a position where the radiation field intensity is estimated to be 10-20 times the mean Solar neighborhoodvalue. The spectrum shows the well known emission bands at 6.2, 7.7, 8.6, 11.3 and 12.7 m. ISO allows to detect the emission features for a radiation field intensity two or...
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Context. We present the analysis of ISOCAM-CVF and J,H and Ks photometry data of the HII region complex N4 in the Large Magellanic Cloud (LMC). Aims. The aim is twofold: 1) to study the connection between the interstellar medium and the star content of this region; 2) to investigate the effects of the lower than galactic metallicity on dust properties. Methods. A dust features – gas lines – con...
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متن کاملNear and Mid Infrared Observations of Ultracompact HII Regions
This review discusses nearand midinfrared observations of Ultracompact (UC) HII regions. The importance of ISO mid-IR fine-structure nebular lines is emphasised, since only a small fraction of UCHII regions are observed directly in the near-IR. The reliability of contemporary atmospheric models for such indirect diagnostics is discussed, whilst a revised spectral type-temperature calibration is...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1999
ISSN: 0035-8711,1365-2966
DOI: 10.1046/j.1365-8711.1999.02241.x