DETECTION OF MULTIPLE BIPOLAR FLOWS IN NGC 7027 WITH SUBMILLIMETER ARRAY
Artikel i vetenskaplig tidskrift, 2010
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.
photodissociation region
ISM: molecules
kinematics
envelope
planetary-nebula ngc-7027
molecular
hco+
planetary nebulae: individual (NGC 7027)
discovery
distance
evolution
emission
Författare
Z. Y. Huang
National Taiwan University
Academia Sinica
T. I. Hasegawa
Academia Sinica
D.-V. Trung
Vietnam Academy of Science and Technology
Academia Sinica
S. Kwok
Academia Sinica
The University of Hong Kong
Sebastien Muller
Chalmers, Rymd- och geovetenskap, Onsala rymdobservatorium
N. Hirano
Academia Sinica
J. Lim
The University of Hong Kong
Academia Sinica
C. M. Mariappan
Academia Sinica
Aryabhatta Research Institute of Observational Sciences
A. Lyo
Academia Sinica
Korea Astronomy and Space Science Institute
Astrophysical Journal
0004-637X (ISSN) 1538-4357 (eISSN)
Vol. 722 1 273-280Ämneskategorier
Astronomi, astrofysik och kosmologi
Fundament
Grundläggande vetenskaper
DOI
10.1088/0004-637X/722/1/273