Discovery of an energetic bipolar molecular outflow towards IRAS 16547-4247

Details Discovery of an energetic bipolar molecular outflow towards IRAS 16547-4247 Discovery of an energetic bipolar molecular outflow towards IRAS 16547-4247

Feb 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007a%26a...463..217g&link_type=abstract

Astronomy and Astrophysics, Volume 463, Issue 1, February III 2007, pp.217-224

Astronomy and Astrophysics

Astrophysics

13

Ism: Jets And Outflows, Ism: Molecules, Stars: Formation

Scientific paper

Aims:We present molecular line observations of the molecular core associated with IRAS 16547-4247, which have allowed us to determine its physical and kinematical properties at angular resolutions of ~18´´. Methods: The observations were made using the Atacama Pathfinder Experiment Telescope in the J = 3 → 2 transitions of 12CO and 13CO, J = 4 → 3 transitions of HCO+ and H13CO^+, and J = 7 → 6 transition of CS. Results: Our observations reveal the presence of a collimated bipolar outflow with lobes ~0.7 pc in extent and aligned with the thermal jet located at the center of the core. The morphology and velocity structure of the flow are well described by a biconical outflow that is inclined from the line of sight by an angle of 84°, has a semi-opening angle of 14°, and in which the gas moves outwards with a constant total velocity, with respect to the cone apex, of ~120 km s-1. The outflow is massive and energetic (flow mass ~110 M&sun;; mass outflow rate ~2×10-2 M&sun; yr-1; momentum ~2×103 M&sun; km s-1 and kinetic energy ~9× 1047 erg), and has a dynamical time scale of 6×103 yr. These parameters are consistent with the flow being driven by a young massive stellar object with L_bol ˜ 6×104 L&sun;.

Affiliated with

Also associated with

No associations

Rating

Discovery of an energetic bipolar molecular outflow towards IRAS 16547-4247 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 Discovery of an energetic bipolar molecular outflow towards IRAS 16547-4247, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of an energetic bipolar molecular outflow towards IRAS 16547-4247 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-734032