Physics
Scientific paper
Jul 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000hst..prop.8653h&link_type=abstract
HST Proposal ID #8653
Physics
Hst Proposal Id #8653 Star Formation
Scientific paper
We propose to observe the protostellar jet HH 30 through a wide slit with STIS in order to determine the distance from the star that the jet becomes collimated, and to diagnose the density, temperature, shock structure, and ionization within the collimation region. The proposed observations will provide an image of the jet in each emission line across the entire optical spectrum with minimal contamination from the reflection nebula near the star, a marked improvement over existing narrowband images that cover only a few lines which emit over a limited range of densities and ionization states. Ratios of the new emission-line images will probe the physical conditions in the jet with HST spatial resolution and make it possible to observe the shape and location of any shocks in the flow, resolve the cooling layers behind these shocks, and trace the recombination of any ionized gas that emerges from the base of the jet. The proximity and brightness of HH 30 together with its favorable inclination angle make this an ideal object to study jet collimation. The new STIS spectra are precisely what are needed to test MHD models of jet collimation from accretion disks. Understanding how jets originate, become collimated, and form shocks has profound implications for the distribution of magnetic fields and angular momentum within accretion disks, which in turn control how stars and planets form.
No associations
LandOfFree
Collimation and Physical Conditions Within the HH 30 Protostellar 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 Collimation and Physical Conditions Within the HH 30 Protostellar Jet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collimation and Physical Conditions Within the HH 30 Protostellar Jet will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1720337