Scanning Fabry-Pérot observations of the HH 7-11 outflow system

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Ism: Individual Objects: Hh 7-11, Ism: Jets And Outflows, Ism: Kinematics And Dynamics

Scientific paper

Results of Fabry-Pérot scanning interferometry of the HH 7-11 complex of Herbig-Haro objects are presented. Line profiles and velocity fields are derived. In HH 7 and HH 11 morphological changes in various velocities are discovered, which are interpreted as spatially separated bow shocks and Mach disks. Several arcuate-shaped features, oriented in the direction of the outflow, are pointed out. To explain the nature of the difference in the physical parameters of HH 11 and other knots a suggestion is made about the probable intersection of the two outflows. Based on observations taken at the 2.6 meter telescope of Byurakan Astrophysical Observatory, Armenia

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