Other
Scientific paper
Dec 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987aj.....94.1653h&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 94, Dec. 1987, p. 1653-1656. NASA-NSF-supported research.
Other
13
Herbig-Haro Objects, Interstellar Magnetic Fields, Magnetic Field Configurations, Polarimetry, Stellar Mass Ejection, Astronomical Spectroscopy, Charge Coupled Devices
Scientific paper
The small-scale structure of the interstellar magnetic field in the vicinity of the Herbig-Haro objects HH 7-11/HH 12 and HH 33/40 is derived from CCD imaging polarimetry of stars nearby to these young stellar object driven outflows. The outflow associated with SVS 13/HH 7-11 lies approximately parallel to the local field direction. The outflow mapped by HH 33/HH 40 is also well aligned with the local magnetic field. However, the orientation of the outflow associated with HH 12 located 2arcmin to the north of HH 7-11 is offset from the inferred magnetic field direction by 60°. These results taken together with those of previous studies suggest (1) magnetic fields are directly or indirectly responsible for the observed orientation of outflows associated with newborn stars in the majority of cases but (2) in some cases, the flow properties may depend upon other characteristics of the parent cloud core and, in particular, the ionization.
Heyer Mark H.
Strom Karen M.
Strom Stephen E.
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