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3.4 Micron Feature on the Shoulder of Ice-Band Absorptions in Three Luminous Young Stellar Objects: IRAS 18511 0146, IRAS 21413 5442, and IRAS 04579 4703
(2002-11)
An absorption feature at 3.4 lm has been detected in the long-wavelength wing of the 3.1 lm H2O ice feature in three young stellar objects: IRAS 18511+0146, IRAS 21413+5442, and IRAS 04579+4703. The profile of the 3.4 lm ...
The magnetic field structure in W51A
(2002-04)
Spectropolarimetry of the 3-μm water-ice feature towards young stellar objects
(2002)
We present spectropolarimetry of the 3-μm water-ice feature towards five young stellar objects embedded in molecular clouds, including the Becklin–Neugebauer object, with wavelength range and spectral resolution much ...
Axisymmetry in protoplanetary nebulae: using imaging polarimetry to investigate envelope structure
(2001-04)
We use ground-based imaging polarimetry to detect and image the dusty circumstellar envelopes of a sample of proto-planetary nebulae (PPNe) at near-infrared wavelengths. This technique allows the scattered light from the ...
High Circular Polarization in the Star Forming Region NGC 6334: Implications
(Astronomical Society of the Pacific, 2000)
The amino-acids which form the building blocks of biological proteins are all left-handed molecules. By contrast, when these molecules are made in the laboratory equal numbers of the right and left-handed versions are made. ...
The magnetic field structure of the DR21 region
(1999)
We present results of imaging polarimetry of the H2 v=1--0 S(1) line towards the outflow lobes of DR21. The polarization vectors are produced by dichroic absorption in a medium of aligned grains and therefore delineate the ...