Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.1007h&link_type=abstract
American Astronomical Society, 197th AAS Meeting, #10.07; Bulletin of the American Astronomical Society, Vol. 32, p.1413
Astronomy and Astrophysics
Astronomy
Scientific paper
We present the results of a proper motion study of four bright stellar jets, HH 1, HH 34, HH 47, and HH 111, based on H-alpha and [S II] HST images obtained over a baseline of about 5 years. A new interpolation algorithm for moving nebulae makes it possible to create images at intermediate times between the two epochs. The resulting movies make it much easier to detect photometric variations and shear motions than by simply blinking images taken at two epochs. Although the motion of the outflowing gas resembles ballistic motion in all cases, consistent with low shock velocities in a highly supersonic jet, the movies do show significant photometric variability and shear. This behavior is most evident in the H-alpha images of working surfaces, where the shock structure is especially complex. Velocity and density variability in the jet is the most likely cause of the observed shock structures.
Bally John
Hartigan Patrick
Heathcote Stephen
Morse Jennifer
Reipurth Bo
No associations
LandOfFree
Proper Motions in the HH 1, HH 34, HH 47 and HH 111 Stellar Jets: Movies from HST 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 Proper Motions in the HH 1, HH 34, HH 47 and HH 111 Stellar Jets: Movies from HST, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proper Motions in the HH 1, HH 34, HH 47 and HH 111 Stellar Jets: Movies from HST will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1722952