Morpho-Kinematic Properties of the 21-Micron Source IRAS 07134+1005

Details Morpho-Kinematic Properties of the 21-Micron Source IRAS 07134+1005 Morpho-Kinematic Properties of the 21-Micron Source IRAS 07134+1005

2008-10-24

arxiv.org/abs/0810.4383v1

Astrophys.J.692:402-410,2009

Astronomy and Astrophysics

Astrophysics

20 pages, 8 figures; accepted for publication in ApJ; Full resolution version available at http://web.hku.hk/~junichi/paper/

Scientific paper

10.1088/0004-637X/692/1/402

We report the results of a Submillimeter Array (SMA) interferometric observation of 21-micron source IRAS 07134+1005 in the CO J=3-2 line. In order to determine the morpho-kinematic properties of the molecular envelope of the object, we constructed a model using the Shape software to model the observed CO map. We find that the molecular gas component of the envelopes can be interpreted as a geometrically thick expanding torus with an expanding velocity of 8 km/s. The inner and outer radii of the torus determined by fitting Shape models are 1.2" and 3.0", respectively. The inner radius is consistent with the previous values determined by radiative transfer modeling of the spectral energy distribution and mid-infrared imaging of the dust component. The radii and expansion velocity of the torus suggest that the central star has left the asymptotic giant branch about 1140-1710 years ago, and that the duration of the equatorial enhanced mass loss is about 2560-3130 years. From the absence of an observed jet, we suggest that the formation of a bipolar outflow may lack behind in time from the creation of the equatorial torus.

Affiliated with

Also associated with

No associations

Rating

Morpho-Kinematic Properties of the 21-Micron Source IRAS 07134+1005 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Morpho-Kinematic Properties of the 21-Micron Source IRAS 07134+1005, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Morpho-Kinematic Properties of the 21-Micron Source IRAS 07134+1005 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-697917