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.

molecular

envelope

evolution

ISM: molecules

discovery

kinematics

photodissociation region

emission

hco+

planetary nebulae: individual (NGC 7027)

distance

planetary-nebula ngc-7027

Författare

Z. Y. Huang

Academia Sinica

National Taiwan University

T. I. Hasegawa

Academia Sinica

D.-V. Trung

Vietnamese Academy of Science and Technology Institute of Physics and Electronics

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

Academia Sinica

The University of Hong Kong

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 1 273-280

Ämneskategorier

Astronomi, astrofysik och kosmologi

Fundament

Grundläggande vetenskaper

DOI

10.1088/0004-637X/722/1/273