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DETECTION OF MULTIPLE BIPOLAR FLOWS IN NGC 7027 WITH SUBMILLIMETER ARRAY

Z. Y. Huang ; T. I. Hasegawa ; V. Trung Dinh ; S. Kwok ; Sebastien Muller (Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium) ; N. Hirano ; J. Lim ; C. M. Mariappan ; A. Lyo
Astrophysical Journal (0004-637X). Vol. 722 (2010), 1, p. 273-280.
[Artikel, refereegranskad vetenskaplig]

Highly collimated multiple bipolar flows are detected with a 3 '' resolution in the HCO+ (J = 3-2) and HCN (J = 3-2) lines in the young planetary nebula NGC 7027 with the Submillimeter Array. The HCO+ and HCN flows coincide in location and velocity with compact and fast CO flows detected with similar to 6 '' resolutions with other millimeter arrays. The equatorial molecular torus of NGC 7027 is captured in HCO+ emission in the present observations. The HCO+ emission also closely follows the H-2 emission, indicating that the present observations probe the photon-dominated region of the molecular envelope of NGC 7027.

Nyckelord: ISM: molecules, planetary nebulae: individual (NGC 7027), planetary-nebula ngc-7027, photodissociation region, molecular, envelope, emission, kinematics, discovery, evolution, distance, hco+


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Denna post skapades 2010-11-12. Senast ändrad 2014-09-02.
CPL Pubid: 129013

 

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Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Onsala rymdobservatorium

Ämnesområden

Astronomi, astrofysik och kosmologi

Chalmers infrastruktur