New observations of the high-velocity outflows of the proto-planetary nebula hen 3-1475
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2002
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| _version_ | 1876464810428727296 |
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| author | A. Riera |
| author_facet | A. Riera |
| contents | New observations of the high-velocity outflows of the proto-planetary nebula hen 3-1475 A. Riera R. Estalella A. Manchado P. García Lario M. Bobrowsky Física, Astronomía y Matemáticas 1475) SHOCK WAVES ISM: JETS AND OUTFLOWS PLANETARY NEBULAE: INDIVIDUAL (HEN 3 The proto-planetary nebula Hen 3-1475 shows a remarkable highly collimated optical jet with a S-shaped stringof shock-excited knots. Moreover, extremely high velocities have been observed in the innermost regions of itsjet. We present a detailed analysis of the kinematic structure, and the excitation conditions in the shock-excitedknots based on ground-based high dispersion spectroscopy and high angular resolution images obtained withthe HST WFPC2. We discuss the similarities between the jet of Hen 3-1475 and the HH jets. Both exhibitdouble-peaked and extremely wide proles, a decrease of the radial velocities with distance to the source in astep-like fashion, and high tangential velocities. The overall picture of Hen 3-1475 supports the description ofthe system as the result of time-dependent ejection velocity variability. 2002 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101325 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) Vol.13 |
| format | Artículo científico |
| id | redalyc_57101325 |
| institution | Redalyc |
| language | en |
| publishDate | 2002 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | New observations of the high-velocity outflows of the proto-planetary nebula hen 3-1475 A. Riera Física, Astronomía y Matemáticas 1475) SHOCK WAVES ISM: JETS AND OUTFLOWS PLANETARY NEBULAE: INDIVIDUAL (HEN 3 New observations of the high-velocity outflows of the proto-planetary nebula hen 3-1475 A. Riera R. Estalella A. Manchado P. García Lario M. Bobrowsky Física, Astronomía y Matemáticas 1475) SHOCK WAVES ISM: JETS AND OUTFLOWS PLANETARY NEBULAE: INDIVIDUAL (HEN 3 The proto-planetary nebula Hen 3-1475 shows a remarkable highly collimated optical jet with a S-shaped stringof shock-excited knots. Moreover, extremely high velocities have been observed in the innermost regions of itsjet. We present a detailed analysis of the kinematic structure, and the excitation conditions in the shock-excitedknots based on ground-based high dispersion spectroscopy and high angular resolution images obtained withthe HST WFPC2. We discuss the similarities between the jet of Hen 3-1475 and the HH jets. Both exhibitdouble-peaked and extremely wide proles, a decrease of the radial velocities with distance to the source in astep-like fashion, and high tangential velocities. The overall picture of Hen 3-1475 supports the description ofthe system as the result of time-dependent ejection velocity variability. 2002 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101325 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) Vol.13 |
| title | New observations of the high-velocity outflows of the proto-planetary nebula hen 3-1475 |
| topic | Física, Astronomía y Matemáticas 1475) SHOCK WAVES ISM: JETS AND OUTFLOWS PLANETARY NEBULAE: INDIVIDUAL (HEN 3 |
| url | https://www.redalyc.org/articulo.oa?id=57101325 |