Other
Scientific paper
Dec 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aas...183.4001l&link_type=abstract
American Astronomical Society, 183rd AAS Meeting, #40.01; Bulletin of the American Astronomical Society, Vol. 25, p.1350
Other
1
Scientific paper
We have conducted high resolution, near-infrared polarimetric observations of the embedded pre-main-sequence object SSV19 (=M78-10), located in NGC2068 at a distance of 450 pc. SSV19 is embedded in a 28times 15 arcsec reflection nebula that displays finger-like projections toward the northwest and southwest. SSV19 appears at J (1.25 microns), H (1.6 microns), and K (2.2 microns) bands, but no other intensity peaks are evident within 20 arcsec of this source. The morphology of this nebula is suggestively bipolar although we know of no molecular outflow associated with this object. Observations were also conducted on pre-main-sequence objects, TMR-1 and IRAS 04248+2612, located in the Taurus Molecular Cloud at a distance of 150 pc. At K band, TMR-1 displays asymmetrical nebulosity illuminated by TMR-1 with most of the dust northeast and northwest of the protostar. Our data suggest that the protostar is in the center of the southern region of the nebulosity rather than obscured by a dust lane or disk as suggested in previous interpretations of radio data. Observations at H and K bands reveal nebulosity around and illuminated by IRAS 04248+2612. A finger-like projection, approximately 35 arcsec in length and 10 arcsec in width, extends northwest from the star. Very little nebulosty is seen toward the south. No other intensity peaks are found within 20 arcsec of this source. The morphology of this nebula is suggestive of a dusty, monopolar outflow structure. This research was partially supported by funds from the National Science Foundation through an AAS/REU grant.
Kastner Joel H.
Lowrance Patrick James
Weintraub David A.
Whitney Barbara A.
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