Analytic and Numerical Models for the Knots along the HH 111 Jet

Details Analytic and Numerical Models for the Knots along the HH 111 Jet Analytic and Numerical Models for the Knots along the HH 111 Jet

Jul 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apj...573..260m&link_type=abstract

The Astrophysical Journal, Volume 573, Issue 1, pp. 260-269.

Astronomy and Astrophysics

Astronomy

25

Ism: Herbig-Haro Objects, Ism: Individual: Alphanumeric: Hh 111, Ism: Jets And Outflows, Ism: Kinematics And Dynamics, Shock Waves

Scientific paper

We consider a model for HH 111 as a jet ejected with a sawtooth, time-dependent ejection velocity. Such a variability is suggested by the position-velocity (PV) diagrams obtained from Hubble Space Telescope observations. We calculate both analytic and numerical models describing the flow resulting from such an ejection velocity time variability. Analytically, we calculate the flow for the limiting cases of massless working surfaces (i.e., those that efficiently eject mass sideways into the cocoon of the jet) and mass-conserving working surfaces, and we find that the numerically computed flow lies between these two limits. From the numerical simulations, we compute PV diagrams that can be directly compared with the corresponding observations. We find a surprisingly good agreement, which can be seen as a partial confirmation of the interpretation of the knots along HH 111 as the result of a time dependence in the ejection. Also, we show that a sawtooth functional form for the ejection velocity variability appears to be particularly appropriate for modeling the detailed radial velocity structure of the knots along HH 111. Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research, Inc. and under NASA contract NAS5-26555.

Affiliated with

Also associated with

No associations

Rating

Analytic and Numerical Models for the Knots along the HH 111 Jet does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Analytic and Numerical Models for the Knots along the HH 111 Jet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analytic and Numerical Models for the Knots along the HH 111 Jet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-960796