2016•Kinematics and Physics of Celestial BodiesRequires access

Bipolar molecular outflow in IRAS 17233-3606

Alexandr V. Antyufeyev, Valery M. Shulga, И. И. Зинченко

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Abstract

The high-mass star-forming region IRAS 17333-3606 has been mapped in the 13 CO ( J = 2–1) and C 18 O ( J = 2–1) lines in the submillimeter wavelength range using the APEX (Chile) radio telescope. The analysis of the low-velocity part of the molecular outflow has been carried out, and the main parameters of the outflow have been determined. We have used a novel approach for calculating parameters of the low-velocity part of bipolar molecular outflows in molecular clouds. The approach excludes the influence of the surrounding cloud on the parameters of the outflow. The mass of the low-velocity part is much greater than that of the high-velocity part of the molecular outflow, while their energies are comparable. The core of the young stellar object is significantly deformed by the impact of the bipolar outflow.

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What this paper is about

The high-mass star-forming region IRAS 17333-3606 has been mapped in the 13 CO ( J = 2–1) and C 18 O ( J = 2–1) lines in the submillimeter wavelength range using the APEX (Chile) radio telescope. The analysis of the low-velocity part of the molecular outflow has been carried out, and the main parameters of the outflow have been determined. We have used a novel approach for calculating parameters of the low-velocity part of bipolar molecular outflows in molecular clouds. The approach excludes the influence of the surrounding cloud on the parameters of the outflow. The mass of the low-velocity part is much greater than that of the high-velocity part of the molecular outflow, while their energies are comparable. The core of the young stellar object is significantly deformed by the impact of the bipolar outflow.

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Available abstract

The high-mass star-forming region IRAS 17333-3606 has been mapped in the 13 CO ( J = 2–1) and C 18 O ( J = 2–1) lines in the submillimeter wavelength range using the APEX (Chile) radio telescope. The analysis of the low-velocity part of the molecular outflow has been carried out, and the main parameters of the outflow have been determined. We have used a novel approach for calculating parameters of the low-velocity part of bipolar molecular outflows in molecular clouds. The approach excludes the influence of the surrounding cloud on the parameters of the outflow. The mass of the low-velocity part is much greater than that of the high-velocity part of the molecular outflow, while their energies are comparable. The core of the young stellar object is significantly deformed by the impact of the bipolar outflow.

Key concepts: Outflow, Physics, Bipolar outflow, Molecular cloud, Astrophysics, Free molecular flow, Wavelength, Astronomy

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