3-D Structure of Outflows from Young Stars: GMOS IFU Observations of HH 32

Details 3-D Structure of Outflows from Young Stars: GMOS IFU Observations of HH 32 3-D Structure of Outflows from Young Stars: GMOS IFU Observations of HH 32

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...20114201b&link_type=abstract

American Astronomical Society Meeting 201, #142.01; Bulletin of the American Astronomical Society, Vol. 35, p.567

Astronomy and Astrophysics

Astronomy

Scientific paper

To better understand the 3-D physics and kinematics of collimated outflows from young stars, we have observed two knots in the HH 32 outflow with the GMOS Integral Field Unit (IFU) at the The Frederick C. Gillett Gemini Telescope. These observations were obtained for System Verification of the dithered IFU observations of a purely emission line object. HH 32 is a collimated Herbig-Haro outflow from the active young binary AS 353. In one spectral setting we were easily able to detect the H alpha, [SII], [NII] and [OI] emission lines in the spectra of knots A and B. In this poster we present the 6275-6785 Angstrom spectra of HH 32 averaged over the A and B knots, images of the knots in each emisson line, and several images of the H alpha emission with velocities ranging from -15 km/s to 415km/s. These observations reveal a complicated 3-D velocity structure that could not be discerned with longslit spectroscopy alone, and thus demonstrate the success of observing outflows from active young stars with optical integral field technology. We will be collaborating closely with with theorists in this field to intepret this data within the confines of current HH flow excitation and kinematic models.
This study is based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the Particle Physics and Astronomy Research Council (United Kingdom), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), CNPq (Brazil), and CONICET (Argentina)

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