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| Main Author: | |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional Autónoma de México
2021
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| Online Access: | https://www.redalyc.org/articulo.oa?id=57171643004 https://www.redalyc.org/journal/571/57171643004/ https://www.redalyc.org/journal/571/57171643004/html/ https://www.redalyc.org/journal/571/57171643004/57171643004.epub https://www.redalyc.org/journal/571/57171643004/movil |
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Table of Contents:
- Estimating the propagation of a uniformly accelerated jet J. I. Castorena A. C. Raga A. Esquivel A. Rodríguez-González L. Hernández-Martínez J. Cantó F. Clever Física, Astronomía y Matemáticas Herbig Haro objects ISM: jets and outflows We study the problem of a Herbig-Haro jet with a uniformly accelerating ejection velocity, travelling into a uniform environment. For the ejection density we consider two cases: a time-independent density, and a time-independent mass loss rate. For these two cases, we obtain analytic solutions for the motion of the jet head using a ram-pressure balance and a center of mass equation of motion. We also compute axisymmetric numerical simulations of the same flow, and compare the time-dependent positions of the leading working surface shocks with the predictions of the two analytic models. We find that if the jet is over-dense and over-pressured (with respect to the environment) during its evolution, a good agreement is obtained with the analytic models, with the flow initially following the center of mass analytic solution, and (for the constant ejection density case) at later times approaching the ram-pressure balance solution. 2021 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57171643004 https://www.redalyc.org/journal/571/57171643004/ https://www.redalyc.org/journal/571/57171643004/html/ https://www.redalyc.org/journal/571/57171643004/57171643004.epub https://www.redalyc.org/journal/571/57171643004/movil 10.22201/ia.01851101p.2021.57.02.04 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.57