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^(12)CO emission from the Red Rectangle

^(12)CO emission from the Red Rectangle
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摘要 Observations of an unprecedented quality made by ALMA on the Red Rectangle of CO(3-2) and CO(6-5) emissions are analysed jointly with the aim of obtaining as simple as possible a description of the gas morphology and kinematics. Evidence is found for polar conical outflows and for a broad equatorial torus in rotation and expansion. Simple models of both are proposed. Comparing CO(6-5) and CO(3-2) emissions provides evidence for a strong temperature enhancement over the polar outflows. Continuum emission (dust) is seen to be enhanced in the equatorial region. Observed asymmetries are briefly discussed. Observations of an unprecedented quality made by ALMA on the Red Rectangle of CO(3-2) and CO(6-5) emissions are analysed jointly with the aim of obtaining as simple as possible a description of the gas morphology and kinematics. Evidence is found for polar conical outflows and for a broad equatorial torus in rotation and expansion. Simple models of both are proposed. Comparing CO(6-5) and CO(3-2) emissions provides evidence for a strong temperature enhancement over the polar outflows. Continuum emission (dust) is seen to be enhanced in the equatorial region. Observed asymmetries are briefly discussed.
出处 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2015年第12期2213-2228,共16页 天文和天体物理学研究(英文版)
基金 the Institute for Nuclear Science and Technology (VINATOM/MOST) the NAFOSTED funding agency under grant number 103.08-2012.34 the World Laboratory the Odon Vallet Foundation the Rencontres du Viet Nam
关键词 stars: AGB and post-AGB -- circumstellar matter -- radio-lines: stars-- planetary nebulae: individual (Red Rectangle) stars: AGB and post-AGB -- circumstellar matter -- radio-lines: stars-- planetary nebulae: individual (Red Rectangle)
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参考文献11

  • 1Bujarrabal, V., Castro-Carrizo, A., Alcolea, J., & Neri, R. 2005, A&A, 441, 1031.
  • 2Bujarrabal, V., & Alcolea, J. 2013, A&A, 552, A116.
  • 3Bujarrabal, V., Alcolea, J., Van Winckel, H., Santander-Garcia, M., & Castro-Carrizo, A. 2013a, A&A, 557, A104.
  • 4Bujarrabal, V., Castro-Carrizo, A., Alcolea, J., et al. 2013b, A&A, 557, L11.
  • 5Cohen, M., Anderson, C. M., Cowley, A., et al. 1975, ApJ, 196, 179.
  • 6Cohen, M., Van Winckel, H., Bond, H. E., & Gull, T. R. 2004, AJ, 127, 2362.
  • 7Koning, N., Kwok, S., & Steffen, W. 2011, ApJ, 740, 27.
  • 8Martfnez Gonzalez, M. J., Asensio Ramos, A., Manso Sainz, R., Corradi, R. L. M., & Leone, E 2015, A&A, 574, A16.
  • 9Men'shchikov, A. B., Schertl, D., Tuthill, P. G., Weigelt, G., & Yungelson, L. R. 2002, A&A, 393, 867.
  • 10Thomas, J. D. 2012, Spectroscopic Analysis and Modeling of the Red Rectangle, PhD Thesis, The University of Toledo.

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