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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents



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ID: 225830.0, MPI für Astronomie / Publikationen_mpia
A variable-velocity, precessing jet model for HH 32
Authors:Raga, A. C.; Riera, A.; Masciadri, E.; Beck, T.; Böhm, K. H.; Binette, L.
Date of Publication (YYYY-MM-DD):2004
Title of Journal:The Astronomical Journal
Volume:127
Start Page:1081
End Page:1088
Review Status:not specified
Audience:Not Specified
Abstract / Description:HH 32 has a bright, strongly redshifted lobe
with a system of scattered condensations. We
propose that these condensations correspond to
internal working surfaces in a variable ejection
velocity, precessing jet. From a
three-dimensional numerical simulation, we obtain
predictions of [O II]
‚‚lambda;3726+‚‚lambda;3729, [O III]
‚‚lambda;5007, [O I] ‚‚lambda;6300, H‚‚alpha;,
[N II] ‚‚lambda;6583, and [S II]
‚‚lambda;6716+‚‚lambda;6731 intensity maps, for
an orientation angle of ~70‚‚deg; between the
outflow axis and the plane of the sky (as
appropriate for HH 32). We also obtain
predictions of radial velocity channel maps. We
then compare these predictions with previously
published observations of HH 32 and discuss the
strengths and weaknesses of the model.
Free Keywords:ISM: Herbig-Haro Objects; ISM: Individual:
; Alphanumeric: HH 32; ISM: Jets and Outflows;
; ISM: Kinematics and Dynamics; shock waves
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
External Affiliations:Apdo. 70-543, 04510 D. F., Mexico;
<EMAIL>raga@astroscu.unam.mx</EMAIL>.),
AB(Departament de F‚‚iacute; sica i Enginyeria
Nuclear, Universitat Polit‚‚eacute;cnica de
Catalunya, Balaguer s/n, E-08800 Vilanova i La
Geltr‚‚uacute;, Spain.; Departament d'Astronomia
i Meteorologia, Universitat de Barcelona, Avenue
Diagonal 647, E-08028 Barcelona, Spain.; On
sabbatical leave from the Instituto de Ciencias
Nucleares, UNAM;
<EMAIL>angels.riera@upc.es</EMAIL>.),
AC(Max-Planck Institut f‚‚uuml;r Astronomie,
K‚‚ouml;nigstuhl 17, D-69117 Heidelberg, Germany;
<EMAIL>masciadri@mpia-hd.mpg.de</EMAIL>.),
AD(Gemini Observatory, 670 North A`ohoku Place,
Hilo, HI 96720;
<EMAIL>tbeck@gemini.edu</EMAIL>.), AE(Department
of Astronomy, University of Washington, Box
351580, Seattle, WA 98195;
<EMAIL>bohm@bluemoon.astro.washington.edu</EMAIL>.),
AF(Instituto de Astronom‚‚iacute; a, UNAM, Apdo.
70-264, 04510 D. F., Mexico;
<EMAIL>binette@astroscu.unam.mx</EMAIL>.)
Identifiers:URL:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bi... [ID No:1]
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