Molecular Emission in HH 47 CYC3-HIGH

Details Molecular Emission in HH 47 CYC3-HIGH Molecular Emission in HH 47 CYC3-HIGH

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993hst..prop.4674r&link_type=abstract

HST Proposal ID #4674

Computer Science

Hst Proposal Id #4674

Scientific paper

Herbig-Haro objects have been successfully modeled as the working surfaces of jets, with bow shocks in the ambient gas and jet material shocked in a Mach disk. These models explain the spectra, line profiles, and morphologies of HH objects. Among the outstanding remaining questions are the relationship between the high velocity gas seen in optical and UV emission lines and the slower, denser material seen in CO; the UV continua observed with IUE; and the nature of the excitation of molecular hydrogen emission observed in the UV and near infrared. The molecular emission has been attributed to Lyman alpha fluorescence, continuum fluorescence, or collisional excitation. A closely related question is the nature of the MHD shocks which excite the UV, optical and IR lines. We have chosen HH 47 to answer these questions because it is compact, bright and relatively unreddened. Extensive optical and radio observations of HH 47 suggest entrainment of molecular cloud material by the high velocity jet. Parameters such as preshock density and magnetic field have been determined from optical observations, and HH 47A is a fine example of a secondary ejection driving a shock into the wake of an earlier bow shock. We propose a GHRS observation of a UV band containing a Ly alpha fluorescence feature, an unidentified feature, and a feature predicted but not detected with IUE.

Affiliated with

Also associated with

No associations

Rating

Molecular Emission in HH 47 CYC3-HIGH 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 Molecular Emission in HH 47 CYC3-HIGH, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Molecular Emission in HH 47 CYC3-HIGH will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1071547