Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2011-01-08
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
50 pages, 16 figures, 4 tables
Scientific paper
We present the results of a high resolution study with the Submillimeter Array towards the massive star forming complex G9.62+0.19. Three sub-mm cores are detected in this region. The masses are 13, 30 and 165 M$_{\sun}$ for the northern, middle and southern dust cores, respectively. Infall motions are found with HCN (4-3) and CS (7-6) lines at the middle core (G9.62+0.19 E). The infall rate is $4.3\times10^{-3}~M_{\odot}\cdot$yr$^{-1}$. In the southern core, a bipolar-outflow with a total mass about 26 M$_{\sun}$ and a mass-loss rate of $3.6\times10^{-5}~M_{\odot}\cdot$yr$^{-1}$ is revealed in SO ($8_{7}-7_{7}$) line wing emission. CS (7-6) and HCN (4-3) lines trace higher velocity gas than SO ($8_{7}-7_{7}$). G9.62+0.19 F is confirmed to be the driving source of the outflow. We also analyze the abundances of CS, SO and HCN along the redshifted outflow lobes. The mass-velocity diagrams of the outflow lobes can be well fitted by a single power law. The evolutionary sequence of the cm/mm cores in this region are also analyzed. The results support that UC~H{\sc ii} regions have a higher blue excess than their precursors.
Chen Huei-Ru
Liu Sheng-Yuan
Liu Tie
Qin Sheng-Li
Ren Zhiyuan
No associations
LandOfFree
Infall and outflow motions in the high-mass star forming complex G9.62+0.19 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 Infall and outflow motions in the high-mass star forming complex G9.62+0.19, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infall and outflow motions in the high-mass star forming complex G9.62+0.19 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-9060