| Telescope: | Canada-France-Hawaii, f/36 |
| Date: | October 25, 1996 |
| Instrument: | University of Hawaii 13-channel AO system and 1024x1024 IR camera |
| Wavelength: | 1.6 microns + IR Polarizer |
| Total exposure: | 24 min. |
| Scale: | see above |
| Orientation: | centered on R Mon, North up East left |
| Observers: | L.M. Close, E. Graves, M. Northcott |
| Reference: | L.M. Close, et al. 1997, ApJ 489, 210-221 |
This is polarization image of R Mon. This is the first image of R Mon at 0.2" FWHM resolution with polarimetry at 1.6 um. This may be the first published polarimetry image with AO. The dark areas have 0% polarization while the brightest areas are 50% polarized. The blue lines indicate the direction and strength of the electric vector. This "centro-symmetric" vetor pattern tells us that NGC 2261 is completely illuminated by R Mon. Hence NGC2261 is a bicone distribution of dust reflecting light from R Mon to our line of sight. For more information about R Mon see Close et al. 1997b, ApJ, Nov. 1 1997
