AFGL 2591 and Monoceros R2: Cavities in the Molecular Cloud
نویسندگان
چکیده
منابع مشابه
The Monoceros R2 Molecular Cloud
The Monoceros R2 region was first recognized as a chain of reflection nebulae illuminated by Aand B-type stars. These nebulae are associated with a giant molecular cloud that is one of the closest massive star forming regions to the Sun. This chapter reviews the properties of the Mon R2 region, including the namesake reflection nebulae, the large scale molecular cloud, global star formation act...
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Context. The chemistry in the inner few thousand AU of accreting envelopes around young stellar objects is predicted to vary greatly with far-UV and X-ray irradiation by the central star. Aims. We search for molecular tracers of high-energy irradiation by the protostar in the hot inner envelope. Methods. The Submillimeter Array (SMA) has observed the high-mass star forming region AFGL 2591 in l...
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We present centimeter and millimeter continuum and molecular line images of the massive starforming region AFGL 5142. A compact millimeter continuum core with integrated Ñux density of (2A.5) 125 mJy has been detected at 88 GHz. The emission peak coincides with a 1.5 mJy centimeter continuum source. A massive (D35 highly collimated north-south outÑow emanating from the core is M _ ) seen in bot...
متن کاملObservations of in Dense Molecular Clouds
has been detected using infrared absorption spectroscopy along the lines of sight to six infrared 3 sources in dense molecular clouds : AFGL 2136, W33A, Mon R2 IRS 3, AFGL 961E, AFGL 2591, and AFGL 490. Upper limits to the column densities of are reported for an additional nine sources. The 3 column densities of CO toward Mon R2 IRS 3 and AFGL 961E have been determined from observations of the ...
متن کاملTurbulence Driven by Outflow - Blown Cavities in the Molecular Cloud of Ngc 1333
Outflows from young stellar objects have been identified as a possible source of turbulence in molecular clouds. To investigate the relationship between outflows, cloud dynamics and turbulence, we compare the kinematics of the molecular gas associated with NGC 1333, traced in CO(1-0), with the distribution of young stellar objects (YSOs) within. We find a velocity dispersion of ∼ 1− 1.6km/s in ...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1989
ISSN: 0252-9211
DOI: 10.1017/s0252921100023812