Improved bow shock models for Herbig-Haro objects - application to HH 2A-prime
An improved version of the bow shock theory previously applied to Herbig-Haro objects is presented. The modifications provide a more accurate calculation of the ionization state of material entering the bow shock. The revised preionization does not drastically affect the emission-line predictions for a 200 km/s bow shock model, though the effects will be more severe for slower shock velocities. The line profiles of the new models resemble the observed profiles somewhat more closely, and the relative emission-line intensities typically differ by 30 percent from those predicted by the older models. The models agree well with new IUE spectra and existing optical data for HH 2A-prime. 32 references.
- Research Organization:
- Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA); Arizona Univ., Tucson (USA)
- OSTI ID:
- 7222612
- Journal Information:
- Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 326; ISSN ASJOA
- Country of Publication:
- United States
- Language:
- English
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