A bipolar outflow of ionized gas in K3-50A: H76 alpha radio recombination line and continuum observations of K3-50

Details A bipolar outflow of ionized gas in K3-50A: H76 alpha radio recombination line and continuum observations of K3-50 A bipolar outflow of ionized gas in K3-50A: H76 alpha radio recombination line and continuum observations of K3-50

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...428..670d&link_type=abstract

The Astrophysical Journal, vol. 428, no. 2, pt. 1, p. 670-679

Astronomy and Astrophysics

Astrophysics

42

Bipolarity, H Ii Regions, H Lines, Helium Atoms, Interstellar Matter, Ionized Gases, Kinematics, Mass Flow, Radio Frequencies, Angular Resolution, Gradients, Jet Flow, Spectral Line Width, Velocity, Very Large Array (Vla)

Scientific paper

The H II regions near K3-50 (G70.3 + 1.6) have been imaged at high angular resolution (approximately 1 sec .3) in the continuum and the recombination lines H76alpha and He76(sub alpha using the Very Large Array (VLA). The helium line is detected in only the brightest component K3-50A while the hydrogen line is detected in three components (K3-50A, B and C1). K3-50A shows a pronounced velocity gradient of approximately 150 km/sec/pc along its major axis (P.A. = 160 deg); in addition a wide range of line widths are observed, from 20 to 65 km/sec. Kinematics from the line data and the morphology of the continuum emission suggest that the ionized material associated with K3-50A is undergoing a high-velocity bipolar outflow.

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