Diffraction‐Limited 3 μm Spectroscopy of IRAS 04296+3429 and IRAS 05341+0852: Spatial Extent of Hydrocarbon Dust Emission and Dust Evolutionary Sequence
نویسندگان
چکیده
منابع مشابه
Comparative Studies of Visible and IRAS Interplanetary Dust Bands
We have examined the diversity and similarity of visible dust bands and infrared dust bands based on data obtained by our ground-based observations (Ishiguro et al. 1999, ApJ 511, 432) and by the Infrared Astronomy Satellite (IRAS). It is found that the latitude profile of visible dust bands at the solar elongation, A — A® = 89°, is similar to that of infrared dust bands, except for the appeara...
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Mid and far infrared maps of many Galactic star forming regions show multiple peaks in close proximity , implying more than one embedded energy sources. With the aim of understanding such interstellar clouds better, the present study models the case of two embedded sources. A radiative transfer scheme has been developed to deal with an uniform density dust cloud in a cylindrical geometry, which...
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We present 1.25mm continuum data for a southern galaxy sample selected from the IRAS PSC and complete to S60 = 2 Jy. Two thirds of the galaxies have been detected and significant limits on the remaining objects have been set. We find, on a statistical basis, indications that the dust emission in these galaxies is somewhat more centrally concentrated than that of the optical light, possibly trac...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2007
ISSN: 0004-637X,1538-4357
DOI: 10.1086/511126