MULTI-COMPONENT ANALYSIS OF POSITION-VELOCITY CUBES OF THE HH 34 JET

Journal Article · Thu Mar 15 04:00:00 EDT 2012 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/143/3/60· OSTI ID:22034692

Rodriguez-Gonzalez, A; Esquivel, A; Raga, A C ^[1]; Canto, J; Curiel, S ^[2]; Riera, A ^[3]

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1. Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Ap. 70-543, 04510 DF (Mexico)
2. Instituto de Astronomia, Universidad Nacional Autonoma de Mexico, Ap. 70-264, 04510 DF (Mexico)
3. Departamento de Fisica e Ingenieria Nuclear, Escuela Universitaria de Ingenieria Tecnica Industrial de Barcelona, Universidad Politecnica de Cataluna, C. Comte Urgell 187, 08036, Barcelona (Spain)

We present an analysis of H{alpha} spectra of the HH 34 jet with two-dimensional spectral resolution. We carry out multi-Gaussian fits to the spatially resolved line profiles and derive maps of the intensity, radial velocity, and velocity width of each of the components. We find that close to the outflow source we have three components: a high (negative) radial velocity component with a well-collimated, jet-like morphology; an intermediate velocity component with a broader morphology; and a positive radial velocity component with a non-collimated morphology and large linewidth. We suggest that this positive velocity component is associated with jet emission scattered in stationary dust present in the circumstellar environment. Farther away from the outflow source, we find only two components (a high, negative radial velocity component, which has a narrower spatial distribution than an intermediate velocity component). The fitting procedure was carried out with the new AGA-V1 code, which is available online and is described in detail in this paper.

• OSTI ID: 22034692
• Journal Information: Astronomical Journal (New York, N.Y. Online), Journal Name: Astronomical Journal (New York, N.Y. Online) Journal Issue: 3 Vol. 143; ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
A CODES
ASTRONOMY
ASTROPHYSICS
COSMIC DUST
DATA ANALYSIS
EMISSION
EMISSION SPECTRA
HYDROGEN
JETS
MORPHOLOGY
RADIAL VELOCITY
RESOLUTION
SPATIAL DISTRIBUTION
STARS
TWO-DIMENSIONAL CALCULATIONS