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Title: 3D kinematics of the near-IR HH 223 outflow in L723
Author: López Hermoso, Rosario
Acosta-Pulido, J.A.
Estalella, Robert
Gómez, G.
García-Lorenzo, B.
Keywords: Radioastronomia
Jets (Astrofísica)
Radio astronomy
Astrophysical jets
Issue Date: 2015
Publisher: Royal Astronomical Society
Abstract: In this work, we derive the full 3D kinematics of the near-infrared outflow HH 223, located in the dark cloud Lynds 723 (L723), where a well-defined quadrupolar CO outflow is found. HH 223 appears projected on to the two lobes of the east<br>west CO outflow. The radio continuum source VLA 2, towards the centre of the CO outflow, harbours a multiple system of low-mass young stellar objects. One of the components has been proposed to be the exciting source of the east<br>west CO outflow. From the analysis of the kinematics, we get further evidence on the relationship between the near-infrared and CO outflows and on the location of their exciting source. The proper motions were derived using multi-epoch, narrow-band H2 (2.122 μm line) images. Radial velocities were derived from the 2.122 μm line of the spectra. Because of the extended (∼5 arcmin), S-shaped morphology of the target, the spectra were obtained with the multi-object-spectroscopy (MOS) observing mode using the instrument Long-Slit Intermediate Resolution Infrared Spectrograph (LIRIS) at the 4.2 m William Herschel Telescope. To our knowledge, this work is the first time that MOS observing mode has been successfully used in the near-infrared range for an extended target.
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It is part of: Monthly Notices of the Royal Astronomical Society, 2015, vol. 447, num. 3, p. 2588-2602
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ISSN: 0035-8711
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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