Bipolar molecular outflow in IRAS 17233-3606

1Antyufeyev, O, 1Shulga, V, 2Zinchenko, I
1Institute of Radio Astronomy of NAS of Ukraine, Kharkiv, Ukraine
2Institute of Applied Physics of RAS, Nizhny Novgorod, Russia
Kinemat. fiz. nebesnyh tel (Online) 2016, 32(6):20-29
Start Page: Physics of Stars and Interstellar Medium
Language: Russian

The high-mass star-forming region IRAS 17333-3606 has been mapped in 13CO(J = 2-1) and C18O(J = 2-1) lines in the submillimeter wavelength range. APEX (Chile) radio telescope has been used. The analysis of the low-velocity part of the molecular outflows has been carried out and the main parameters of outflow have been determined. We used a novel approach for calculation of parameters of the low-velocity part of bipolar molecular outflow in molecular clouds. The approach excludes the influence of the surrounding cloud on the parameters of the molecular outflow. Mass of the low-velocity parts is much greater than the high-velocity part of the molecular outflow and their energies are comparable. The core of the young stellar object is significantly deformed by the impact of the molecular outflow.

Keywords: IRAS 17333-3606, molecular outflow, star-forming region

1.A. V. Antyufeyev and V. M. Shulga, “Bipolar outflow in the vicinity of IRAS 05345+3157 in 13CO line,” Kinematics Phys. Celestial Bodies 27, 282–290 (2011).

2.A. V. Antyufeyev and V. M. Shulga, “Bipolar molecular outflows in the star forming region IRAS 22267+6244,” Radio Phys. and Radio Astron. 3, 27–32 (2012).

3.A. V. Antyufeyev and V. M. Shulga, “Method for calculating low-velocity bipolar outflow parameters in massive star formation regions,” Kinematics Phys. Celestial Bodies 30, 137–146 (2014).

4.H. G. Arce and A. A. Goodman, “The episodic, precessing giant molecular outflow from IRAS 04239+2436 (HH 300),” Astrophys. J. 554, 132–151 (2001).

5.H. Arce, D. Shepherd, F. Gueth, et al., “Molecular outflows in low- and high-mass star-forming regions,” in Protostars and Planets V, Ed. by B. Reipurth, D. Jewitt, and K. Keil (Univ. of Arizona Press., Tucson, 2007), pp. 245–260.

6.I. A. Bonnell, M. R. Bate, and H. Zinnecker, “On the formation of massive stars,” Mon. Not. R. Astron. Soc. 298, 93–102 (1998).

7.Y.-N. Chin, C. Henkel, J. B. Whiteoak, et al., “Interstellar sulfur isotopes and stellar oxygen burning,” Astron. Astrophys. 305, 960–969 (1996).

8.R. P. Garden, M. Hayashi, T. Hasegawa, et al., “A spectroscopic study of the DR 21 outflow source. III — The CO line emission,” Astrophys. J. 374, 540–554 (1991).

9.R. Güsten, L. Nyman, P. Schilke, et al., “The Atacama Pathfinder EXperiment (APEX) — A new submillimeter facility for southern skies,” Astron. Astrophys. 454, 13–16 (2006).

10.P. D. Klaassen, K. G. Johnston, S. Leurini, and L. A. Zapata, “The SiO outflow from IRAS 17233-3606 at high resolution,” Astron. Astrophys. 575, A54 (2015).

11.S. Leurini, C. Codella, L. A. Zapata, et al., “Extremely high velocity gas from the massive young stellar objects in IRAS 17233-3606,” Astron. Astrophys. 507, 1443–1454 (2009).

12.S. Leurini, C. Hieret, S. Thorwirth, et al., “High-mass star formation in the IRAS 17233-3606 region: a new nearby and bright hot core in the southern sky,” Astron. Astrophys. 485, 167–175 (2008).

13.T. Liu, Y. Wu, and H. Zhang, “Gaseous CO abundance — An evolutionary tracer for molecular clouds,” Astrophys. J. Lett. 775, L2 (2013).

14.M. Tafalla and P. C. Myers, “Velocity shifts in L1228: the disruption of a core by an outflow,” Astrophys. J. 491, 653–662 (1997).

15.I. Zinchenko, “Statistics of high-velocity outflows in regions of massive star formation,” Astron. Lett. 28, 316–323 (2002).