Explosive Outflows from Forming Massive Stars
نویسندگان
چکیده
منابع مشابه
How Protostellar Outflows Help Massive Stars Form
We consider the effects of an outflow on radiation escaping from the infalling envelope around a massive protostar. Using numerical radiative transfer calculations, we show that outflows with properties comparable to those observed around massive stars lead to significant anisotropy in the stellar radiation field, which greatly reduces the radiation pressure experienced by gas in the infalling ...
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We present high angular resolution observations toward two massive star forming regions IRAS 18264-1152 and IRAS 23151+5912 with the Plateau de Bure Interferometer (PdBI) in the SiO (J=2-1) and HCO (J=1-0) lines and at 1.3 mm and 3.4 mm continuum, and with the Very Large Array (VLA) in the NH3 (J,K)=(1,1), (2,2) lines. The NH3 (1,1) and (2,2) emission is detected toward IRAS 18264-1152 only. Fo...
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Recent near-IR observations of Herbig-Haro (HH) jets and molecular outflows from very young, deeply embedded protostars are discussed. Proper motion measurements, and both lowand high-resolution spectroscopic studies reveal the excitation and kinematics of individual objects, which may be interpreted in terms of highvelocity bow shocks which sweep up and entrain ambient material to form molecul...
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We present a new and homogeneous set of explosive yields for masses 13, 15, 20, 25, 30 and 35 M⊙ and metallicities Z = 0, 10 , 10, 10, 6 · 10, 2 · 10. A wide network extending up to Mo has been used in all the computation. We show that at low metallicities (Z ≤ 10) the final yields do not depend significantly on the initial chemical composition of the models so that a scaled solar distribution ...
متن کاملMassive Star Outflows
Molecular outflows in the form of wide-angle winds and/or well-collimated jets are associated with young stellar objects of all luminosities. Independent studies have established that the mass outflow rate is proportional to L bol for Lbol = 0.3 to 10 5 L⊙, suggesting that there is a strong link between accretion and outflow for a wide range of source luminosity and there is reasonable evidence...
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ژورنال
عنوان ژورنال: EAS Publications Series
سال: 2015
ISSN: 1633-4760,1638-1963
DOI: 10.1051/eas/1575049