Abstract
We performed a detailed study of the high-mass clump interacting with bubble N10 based on the spectral lines 12CO(3–2), HCO+(4–3), N2H+(4–3) and CH3OH(7(0,7)–6(0,6)) and continuum emission data at 450 μm and 850 μm released by CADC and Spitzer. A blue-shifted optically thick line 12CO(3–2) seems to indicate that the outer envelope of the high-mass clump is still falling toward the center. Detection of CH3OH(7(0,7)–6(0,6)) suggests that a hot core has formed around YSO N10-7. The position–velocity diagram of N2H+(4–3) indicates that the cold dense core of the clump has not been destroyed by the star formation activities. The mass of N10-7 is about 27.44 M ⊙. The ratio HCO+(4–3)/N2H+(4–3) in the outer part of the clump is larger than that in the inner part of it. The reason may be that the CO abundance relative to N2H+(4–3) is increased in the outer part of the high-mass clump, and more N2H+(4–3) were converted into HCO+(4–3).
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Acknowledgements
This work was funded by the National Natural Science Foundation of China under grant 10778703, and partly supported by the China Ministry of Science and Technology under State Key Development Program for Basic Research (2012CB821800) and the National Natural Science Foundation of China under grant 10873025.
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Ma, Y., Zhou, J., Esimbek, J. et al. A detailed study of the high-mass clump interacting with the bubble N10. Astrophys Space Sci 345, 297–303 (2013). https://doi.org/10.1007/s10509-013-1405-6
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DOI: https://doi.org/10.1007/s10509-013-1405-6