THE PRECESSION OF THE HERBIG-HARO 111 FLOW IN THE INFRARED

Journal Article · Sun May 01 04:00:00 EDT 2011 · Astrophysical Journal Letters

DOI:https://doi.org/10.1088/2041-8205/732/1/L16· OSTI ID:21562704

Noriega-Crespo, A; Carey, S J ^[1]; Raga, A C ^[2]; Lora, V ^[3]; Stapelfeldt, K R ^[4]

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1. Spitzer Science Center, California Institute of Technology, CA 91125 (United States)
2. Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, Ap. 70-543, 04510 D. F. (Mexico)
3. Astronomisches Rechen-Institut Zentrum fuer Astronomie der Universitaet Heidelberg, Moenchhofstr, 12-14 69120 Heidelberg (Germany)
4. Jet propulsion Laboratory, California Institute of Technology, MS 183-900, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)

We present Spitzer Infrared Array Camera images of the Herbig-Haro (HH) 111 outflow that show a wealth of condensations/knots in both jet and counterjet. Studying the positional distribution of these knots, we find very suggestive evidence of a mirror symmetric pattern in the jet/counterjet flow. We model this pattern as the result of an orbital motion of the jet source around a binary companion. From a fit of an analytic, ballistic model to the observed path of the HH 111 system, we find that the motion in a binary with two {approx}1 M{sub sun} stars (one of them being the HH 111 source), in a circular orbit with a separation of {approx}186 AU, would produce the mirror symmetric pattern seen in the outflow.

• OSTI ID: 21562704
• Journal Information: Astrophysical Journal Letters, Journal Name: Astrophysical Journal Letters Journal Issue: 1 Vol. 732; ISSN 2041-8205
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
HERBIG-HARO OBJECTS
JETS
MOTION
ORBITS
PRECESSION
STARS