Enhanced angular domain optical imaging by background scattered light subtraction from a deviated laser source

Author(s):  
Fartash Vasefi ◽  
Glenn H. Chapman ◽  
Paulman Chan ◽  
Bozena Kaminska ◽  
Nick Pfeiffer
2008 ◽  
Vol 16 (19) ◽  
pp. 14456 ◽  
Author(s):  
Fartash Vasefi ◽  
Bozena Kaminska ◽  
Paulman K. Y. Chan ◽  
Glenn H. Chapman

Author(s):  
Fartash Vasefi ◽  
Benny S. L. Hung ◽  
Bozena Kaminska ◽  
Glenn H. Chapman ◽  
Jeffrey J.L. Carson

2009 ◽  
Author(s):  
Fartash Vasefi ◽  
Benny S. L. Hung ◽  
Bozena Kaminska ◽  
Glenn H. Chapman ◽  
Jeffrey J. L. Carson

2007 ◽  
Vol 13 (6) ◽  
pp. 1610-1620 ◽  
Author(s):  
Fartash Vasefi ◽  
Paulman K. Y. Chan ◽  
Bozena Kaminska ◽  
Glenn H. Chapman ◽  
Nick Pfeiffer

1964 ◽  
Vol 3 (7) ◽  
pp. 902 ◽  
Author(s):  
S. Bateson ◽  
J. W. Hunt ◽  
D. A. Dalby ◽  
N. Sinha
Keyword(s):  

1986 ◽  
Vol 64 (4) ◽  
pp. 387-391
Author(s):  
Bel Campbell ◽  
S. E. Persson

New and sensitive optical imaging of a small sample of young stellar objects is presented. The observations are part of a continuing program of deep, red optical imaging of star-forming regions performed with the 4Shooter charge-coupled-device (CCD) system on the Palomar 5-m telescope. Each of the sources presented is of moderately high luminosity [Formula: see text] and is associated with a bipolar outflow of molecular gas. The results on the source GL490 are discussed in some detail. We find the source core to be well resolved and elongated orthogonal to the outflow direction despite an unresolved image size (< 0.3″) in the near infrared; in addition, there is an extended (> 0.8 pc) cone of diffuse emission out from the core source in the direction of the blue-shifted portion of the molecular outflow. From astrometry of the CCD frame, we find that the center of the optical position is displaced from the radio-image centroid by approximately 1.5″ to the southwest, also in the direction of the blue-shifted outflow. It is proposed that the optical image is totally due to scattered light from a source that is entirely obscured from direct view. Owing to inconsistencies in the orientations of the radio image and polarization position angle with the other source orientations, we conclude that a simple disk plus an orthogonal-outflow scenario is no longer supportable for this object and that continued observations may reveal many equally complex cases.


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