The time-dependent ejection velocity histories of HH 34 and HH 111

The Transverse Velocity Structure of the Hh 111 Jet 1

Infrared Imaging of Hh 25/26 and Hh 42/128

Images of the HH 25/26 and HH 42/128 systems obtained in the emission lines of H 2 1-0 S(1), Fe II] 1.64 m, and a 2.22 m continuum lter are reported. A series of aligned H 2 knots has been discovered in association with HH 26, along with a new infrared continuum source located at the center of a previously-discovered CO outtow which may power the HH 26 knots. HIRES images from IRAS are used to ...

Photoabsorption Cross Section Revisited: Correlated HH versus Effective Interaction HH

Two conceptually different hyperspherical harmonics expansions are used for the calculation of the total He photoabsorption cross section. Besides the well known method of CHH the recently introduced effective interaction approach for the hyperspherical formalism is applied. Semi-realistic NN potentials are employed and final state interaction is fully taken into account via the Lorentz integra...

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The Optical Proper Motions of Hh 7-11 and Cep E (hh 377)

A key ingredient in understanding the dynamics of stellar outflows is their proper motion. We have used optical images in the [SII] emission at 6717/31 Å and the red Digitized Palomar Observatory Sky Survey (DSS) plates to determine the proper motion of HH 7-11 system and the optical knot of Cep E (HH 377). The DSS plate measurements span nearly 37 years for both HH 7-11 and HH 377 and have wid...